Intel i7 7700
Тест процессора Intel Core i7-7700 | CHIP
Кодирует, шифрует и дешифрует очень хорошо
Результаты тестирования Intel Core i7-7700
- Соотношение цена/качество Хорошо
- Место в общем рейтинге 15 из 176
- Соотношение цена/качество: 65
- Производительность CPU (100%): 61.2
Intel Core i7-7700: отличная замена прошлому
Новый Intel Core i7-7700 седьмого поколения («Kaby Lake») впечатляет прежде всего своим соотношением цены и качества. При актуальной стоимости около 21 000 он делает устаревшими целый ряд предшествующих моделей.
Вот какие процессоры стоят примерно столько же, но производительность у них ниже: i7-4790 (около 20 500 рублей), i7-4790S (около 21 500 рублей) i7-4771 (около 21 500 рублей), i7-4770S (около 21 500 рублей) и i7-6700 (около 22 000 рублей). Тот, кто уже положил глаз на эти CPU, должен либо подождать падения цен, либо сразу брать нового представителя «Kaby Lake».
Intel Core i7-7700: высокая тактовая частота для тех, кто не занимается разгоном
Intel Core i7-7700 имеет тактовую частоту 3,6 ГГц, которая в Boost-режиме может повышаться до 4,2 ГГц. Таким образом, здесь она «заканчивается» на том уровне, где у i7-7700K только начинается. При этом свободного множителя у более дешевой модели нет, так что разгон возможен только через опорную частоту для ядер процессора.
Тот, кто не хочет играться с тактовыми частотами, все равно будет доволен действительно низким уровнем TDP (65 Вт) и экономией по стоимости, ведь родственная модель Intel Core i7-7700К стоит приблизительно 24 500 рублей.
Напомним, что все CPU Kaby Lake благодаря чипсету Z270 поддерживают работу с аппаратным ускорением H.265, интеловскими SSD-накопителями семейства Optane и оперативной памятью стандарта DDR4 с тактовой частотой до 2400 МГц.
Intel Core i7-7700: немного удивительно
Данный процессор в всех категориях бенчмарков демонстрирует по меньшей мере хорошие результаты. И хотя в PCMark 8 со своими почти 3900 баллами он уступает некоторым более старым CPU, зато компенсирует это маленькое недоразумение превосходными характеристиками при шифровании и дешифровании (Truecrypt до 300 Mbyte/s), а также при видеокодировании (Handbrake до 70,5 fps).
Заслуживают внимания и способности процессора в рендеринге (Povray примерно 1900 пикселей в секунду). При всем этом своего предшественника, i7-6700, данный процессор в среднем превосхоит не более, чем на 10 процентов.
Intel Core i7-7700: низкая квалификация для гейминга
Интегрированное графическое решение HD Graphics 630 хотя и не является полноценной заменой выделенной графической карте, но от своих 24 шейдерных блоков добивается относительно высокой производительности.
С результатом 1213 баллов в бенчмарке 3DMark Fire Strike Intel Core i7-7700 занимает 13 место нашего соответствующего рейтинга и уступает лишь более сильным с точки зрения графических возможностей чипам AMD. Тем не менее, для не слишком требовательных к ресурсам игр, типа «Dota 2» или «Overwatch», производительности должно быть вполне достаточно.
Альтернатива: Intel Core i5-7600K (3.8 GHz) LGA1151
Если вы находитесь в поисках действительно хорошего игрового процессора, актуальный i7 будет даже слишком хорош. С Intel Core i5-7600K вы получите в плане производительности уже более чем достаточно для большинства современных игр. Кроме того, данный процессор можно разогнать.
Производительность CPU (100%)
Характеристики и результаты тестирования Intel Core i7-7700
|Номинальная частота||3,6 ГГц|
|Максимальная частота||4,2 ГГц|
|Объем L2-кеш||4x 256 Кбайт|
|Объем L3-кеш||8 Мбайт|
|Термопакет (TDP)||65 Вт|
|Тест CPU: PCMark 8||3.863 бал.|
|Тест CPU: Excel 2010 SP1 - моделир. Монте-Карло|
|Тест CPU: Cinebench R15 (макс. ядер CPU)||873 бал.|
|Тест CPU: WinRAR 4.01 (64 бит)|
|Тест: TrueCrypt 7.1 AES-Twofish-Serpent|
|Тест CPU: HandBrake 0.9.5||70,5 fps|
|Тест CPU: PovRay 3.7 RC3 (1280x1024 без AA)||1.881 пикс/с|
|Видеоядро||Intel HD Graphics 630|
|Тест GPU: 3DMark Cloud Gate||10.223 бал.|
|Тест GPU: 3DMark Firestrike||1.172 бал.|
|Тест GPU: Metro Last Light||31,0 fps|
|Тест GPU: Bioshock Infinite||33,8 fps|
Intel Core i7-7700 BX80677I77700
The number of benchmark samples for this model as a percentage of all 15,121,417 CPUs tested.
|Core i7-7700Intel $320Bench 82%, 78,851 samples||1,872x|
|EDIT WITH CUSTOM PC BUILDER||Value: 89% - Excellent||Total price: $635|
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|Description||Intel® Core™ i7-7700 Processor (8M Cache, up to 4.20 GHz)|
|Code Name||Kaby Lake|
|# of Cores||4|
|# of Threads||8|
|Instruction Set Extensions||SSE4.1/4.2, AVX 2.0|
|Embedded Options Available||No|
|Recommended Price||$303.00 - $312.00|
|Clock Speed||3.60 GHz|
|Max Turbo Frequency||4.20 GHz|
|Bus Speed||8 GT/s DMI3|
|Max TDP||65 W|
|Thermal Solution Specification||PCG 2015C (65W)|
|Processor Graphics||Intel® HD Graphics 630|
|Graphics Base Frequency||350.00 MHz|
|# of Displays Supported||3|
|Graphics Max Dynamic Frequency||1.15 GHz|
|Quick Sync Video||Yes|
|InTru 3D Tech||Yes|
|Clear Video HD Tech||Yes|
|Clear Video Tech for MID||Yes|
|Graphics Video Max Memory||64 GB|
|Max Memory Size||64 GB|
|Memory Types||DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V|
|ECC Memory Supported||No|
|PCI Express Revision||3.0|
|PCI Express Configurations||Up to 1x16, 2x8, 1x8+2x4|
|Max # of PCI Express Lanes||16|
|AES New Instructions||Yes|
|Virtualization Tech (VT-x)||Yes|
|Enhanced Intel SpeedStep® Tech||Yes|
|Thermal Monitoring Technologies||Yes|
|Turbo Boost Tech||2.0|
|Identity Protection Tech||Yes|
|Stable Image Platform Program (SIPP)||Yes|
|Package Size||37.5mm x 37.5mm|
|Max CPU Configuration||1|
|Execute Disable Bit||Yes|
|Trusted Execution Tech||Yes|
Intel Core i7-7700K: Power Consumption And Temperatures
It’s a well-known fact that processors vary widely in quality due to their manufacturing process. This time around, we didn’t get all of our test samples from Intel directly, but they’re the same retail models that anyone can buy at the store. This means that the manufacturer didn't provide pre-sorted CPUs. Unfortunately, the luck of the draw worked against our German lab, and we received a sample on the lower end of the quality range.
This doesn’t affect the benchmark results at all. However, it does have an impact on the power consumption and cooling results, as well as how far this particular CPU sample can be overclocked. Consequently, we have a page dedicated to the quality variations of the four CPUs that we tested. We were also able to use a test sample that Intel’s PR department gave us at the last minute.
The Intel Core i7-7700K
The “K” CPUs have an unlocked multiplier and a significantly higher base clock rate compared to non-K models. There’s also room for manual overclocking.
The Intel Core i7-7700K’s stock base frequency is 4.2 GHz. Even under extreme loads, it runs all four of its cores at a Turbo Boost frequency of 4.5 GHz. Let’s take a look at how it acts under different loads. Do keep in mind that this particular sample’s an extreme case and represents what happens if you have bad luck when buying this processor.
Core Voltage (Vcore)
We start with the actual core voltage (Vcore), which shouldn’t be confused with the voltage identification (VID), or what GPU-Z or CoreTemp show the Vcore to be. Our sensor readings come straight from the motherboard and represent the voltage that actually runs through its voltage converters.
The loads change both dynamically and quickly during gaming (grey curve). Voltage regulation works well with this kind of load pattern, since the CPU is only regulated down if there’s a strong load increase. This is also demonstrated by the blue curve, which represents the results from a constant computing load. The motherboard regulates the voltage down in order to keep the CPU safe from leakage currents. On the plus side, it does manage to keep the voltage constant for the entire duration, though.
There are a lot of observable fluctuations during the extreme stress test. This is because the CPU runs into its thermal limit in spite of our compact water cooling solution, and it throttles accordingly for safety reasons.
Normal Load: Gaming
We’re using a Watch Dogs 2 sequence to test the gaming load. The player stands in a well-populated spot in the city center, which creates a high CPU load due to the many NPCs and constant traffic. This makes the test very reliable. Across 30 minutes, the CPU load is very similar to the average CPU load that we measured during actual gaming. Of course, the average load might change based on the specific title you're looking at.
Now let's look at overall power consumption and the components that go into it, such as the IA cores, cache, and memory controller. After the warm-up phase, we measure a relatively high 77W for the entire CPU, 67W of which comes from the execution cores. The difference is covered by the needs of the Uncore (cache, memory controller, etc.) and leakage currents.
As the CPU heats up, power consumption goes up as well. This is a sign that leakage currents increase, pushing power up another 3W during our gaming workload.
The temperatures increase at a different pace, depending on the position of the sensor. They do stabilize after a maximum of 22 minutes at up to 71°C, though.
Heavy Load: Stress Test (Floating-Point Unit)
For our next test run, we tax the CPU's floating-point unit using the stability test included in FinalWire's AIDA64. This results in a power consumption measurement of 98W. Leakage currents increase right along with the temperatures, and this time the increase is significant.
With the Tcore reaching up to 85°C, we’re still in the clear. But that's not a good sign for the thermal headroom available when we want to start overclocking.
Maximum Load: Intel Power Thermal Utility (100%)
To prove the old adage that things can always get worse, we drop the hammer with Intel’s Power Thermal Utility, which isn't publicly available for Kaby Lake. The Core i7-7700K in our German lab consumed a hefty 137W. The one in our U.S. lab consumed 18W less than that!
Unsurprisingly, temperatures explode right along with the power consumption. The CPU hit 101°C very quickly, which means that it even exceeded its maximum temperature. Consequently, it throttled up to 25 percent. At least the processor survived our full 30-minute test.
Dissipating almost 140W isn't really a challenge for our water cooling solution. It’s able to deal with an Intel Core i7-6950X overclocked to 4 GHz, which generates a lot more heat than this. The problems lie elsewhere. First, there’s the CPU package's smaller surface area. Second, there’s the thermal paste, which might have made Intel's accounting department happy, but causes overclockers nothing but worry.
Intel Core i7-7700K vs. Core i7-6700K @ 4.5 GHz
For our performance benchmarks, we had the Core i7-7700K compete against a Core i7-6700K at the same frequency. The latter fared pretty well, but was also close to its maximum overclocking potential. We have an above-average chip, but it's far from a golden sample.
Consequently, we end up comparing a solid Skylake CPU to a bad Kaby Lake sample at the same clock rate. The result’s somewhat of a shocker: our Skylake CPU comes in just below Kaby Lake in our power consumption test, in spite of its manual overclock and a slightly higher voltage set in the BIOS.
This means that a decent retail Core i7-6700K beats a below-average retail Core i7-7700K. We already feel sorry for the online retailers that’ll have to deal with the returns and exchanges generated by enthusiasts trying to get the best possible sample.
The Core i7-6700K’s voltages are always higher than those of the Core i7-7700K with its new manufacturing process. This doesn’t guarantee better efficiency than the preceding processor generation, though.
We have to stress that the variability of the processors’ quality can have a major impact on the results. We go over this variability later on, on its own page.
We learn two things from our experiences with Intel's Core i7-7700K. First, Intel’s Power Thermal Utility is no joke. Second, the Core i7-7700K does have some thermal and performance reserves, so long as you don't hit it with such a worst-case workload. There should be some room for overclocking, though it won't be much.
Intel Core i7 7700K review: a hugely uninspiring, barely iterative CPU update
Reviewing PC components can be a demoralising business. For all the game-changing new technologies offering tangible performance boosts to your gaming rig there are always the dry, nothing-to-see-here, barely iterative releases. Guess where Intel’s Kaby Lake-based Core i7 7700K sits…
The 7700K isn’t the best processor around – check out our pick of the best CPUs for gaming right now.
The top-end Kaby Lake chip is a depressing slice of silicon because, despite how resolutely unimpressive an upgrade it is, the Core i7 7700K is still the most advanced desktop CPU you can buy right now. It’s as good as the 7th Gen Core architecture gets until we see Kaby Lake-X towards the end of this year, but compared with the 6th Gen Skylake chips there’s little new here to get excited about. Sigh.
And this is going to be a bit of a problem for Intel’s already-abandoned Process>Architecture>Optimisation product release cadence. The optimisation stage looks like having the least interesting releases and that’s the part that’s getting extended with further 14nm releases like Coffee Lake…
Click on the quick links below to jump to your favourite category. I likes benchmarks, me… ooh, look at the graphs on that.
Intel Core i7 7700K specifications
The Core i7 7700K is the direct replacement for the Core i7 6700K and is almost identical to the previous chip in a number of ways. For a start we’re still looking at more or less the same 14nm production process at play with the Kaby Lake i7, it’s still essentially using the same Skylake architecture as well as the same four cores / eight threads HyperThreaded configuration.
It also slips into the same LGA 1151 slot as Skylake, has the same TDP and the same cache. That means you can either drop a Kaby Lake CPU into an existing Z170 board or choose one of the Z270 motherboards as the home for your new CPU. You can also do the same with last-gen Skylake chips; so if you fancy some of the goods on offer with a 200-series board but don’t feel the need to upgrade your 6th Gen Core CPU you don’t have to.
And this is mostly because they’re basically the same damned chips with just the very slightest of tweaks. Sadly this looks like what we’re going to have to live with for the tertiary phase of Intel’s new Process>Architecture>Optimisation cadence.
Previously Intel’s CPUs were either built on a new transistor node or featured an entirely new microarchitecture. This was the basis for the ol’ tick-tock release schedule where the tick was a die-shrink on an existing architectural design and the tock was a whole new CPU layout. This changed to a three step, Process>Architecture>Optimisation, approach thanks to the increased difficulty in effectively shrinking the size of functional transistors.
That’s been abandoned before we’ve even had one release cycle, so it’s now tick, tock, stutter, flail, flog an old production process. We have a couple of optimised chip generations coming out to extend the life of a CPU architecture featuring both the current design and the existing production process. At least Intel are giving us another couple of cores to play around with in exchange for almost zero architectural changes with the upcoming 14nm Coffee Lake designs.
I guess the thinking is that with both a mature processor design and a mature lithography Intel will be able to squeeze out every last drop of potential performance from their chips.
As the name suggests, the 7700K is another K-series variant, which means it has an unlocked multiplier and, given the optimised process, we ought to hope the overclocking performance of the Kaby Lake generation has been boosted.
In reality though we’re just getting a processor which maintains the previous generation’s dominance but is incapable of really pushing things any further.
As I said though, there are some slight tweaks. The main one being the change in base and Turbo clockspeeds. Out of the box the Core i7 7700K comes with a 4.2GHz base and 4.5GHz Turbo frequency. This is a function of Kaby Lake being an optimised version of the Skylake architecture’s 14nm design. Twelve months after then inaugural Skylake release Intel have been able to wring a little more performance out of the silicon with only a little extra energy required using small changes in the production process, now called 14nm+.
The other big change is the new Kaby Lake media engine. This means that as of now 4K media streaming is available on the PC because Intel have enabled hardware-level acceleration for the encoding and decoding of 10-bit HEVC content. Despite having the power to run 4K media the Skylake and Broadwell generations haven’t had the native hardware acceleration necessary for streaming the 4K out of Netflix. Though you are still going to have to use the Edge browser if you want it running on your PC.
When it comes to the CPU-based graphics inside the i7 7700K they’re exactly what you might expect, entirely irrelevant to us. We’re dedicated to PC gaming here at PCGamesN, and Intel’s HD graphics are not. End of.
Intel Core i7 7700K benchmarks
Intel Core i7 7700K performance
We posted an early preview of the Core i7 7700K’s performance in the Skylake generation’s Z170 motherboards and were largely unimpressed. Things haven’t really changed since we’ve been able to test the capabilities of the Kaby Lake i7 in its own Z270 platform.
Put up against AMD’s octa-core Ryzen chips, like the R7 1800X, the Intel chip is still able to deliver superior gaming performance even if it can’t match the full multi-threaded chops of the Zen architecture. That’s going to be a little frustrating if you were hoping the $500 Ryzen flagship would be able to replace the Core i7 as the peak mainstream CPU, but considering the 7700K is cheaper and can still overclock like a hero it is a better chip for gamers.
Compared with the Skylake i7 it’s replacing though it’s not as clear cut. As expected, the clockspeed bump from a Turbo of 4.2GHz with the Core i7 6700K to 4.5GHz with the i7 7700K means the Kaby Lake chip is able to produce higher benchmark performance across the board compared with the Skylake CPU. Realistically though the performance uplift is observable but not tangible. The 7700K is some 6-7% quicker in our straight CPU benchmarks, but less than 2% quicker when we use Futuremark’s system-wide tests.
The PCMark and 3DMark scores are indicative of what little difference the optimisation of the Kaby Lake CPUs has made upon gaming performance. I’ve chosen the Hitman and Doom benchmarks, using the DirectX 12 and Vulkan APIs respectively, as they’re the ones with the greatest difference in benchmark scores. The DX11 Total War: Attila and DX12 Deus Ex: Mankind Divided tests showed absolutely no variance between the Skylake and Kaby Lake chips.
Where things do make a little more sense is on the power side of the equation. Kaby Lake uses both an optimised CPU architecture and production process and that should equate to greater efficiency. While things don’t look that impressive when you’re comparing the two stock-clocked Core i7 processors the optimisation of the Kaby Lake chip becomes evident when you start to push them further.
It’s easy to get the 6700K to run at the same level as the 7700K. Our Skylake chip is a standard retail sample and can happily hit 4.8GHz overclocked, so clocking in at the Kaby Lake chip’s 4.5GHz is no problem. With clock-for-clock parity though the 7700K runs 10°C cooler than the 6700K and uses 5% less energy to do so.
But if you were hoping, like me, the performance optimisations would lead to a CPU generation more than happy to boost over the 5GHz mark for larks then you’ll be disappointed. I’ve only been able to complete a full benchmark run at 4.9GHz, just 100MHz higher than the Skylake i7. Inevitably that’s not going to translate to any meaningful performance lead.
I did manage to get the 7700K booting at over 5GHz, but it was by no means stable. I could run relatively CPU-light workloads at that speed, such as games, and even managed a few runs of Cinebench, but the aggressive X264 v5 benchmark kept making the system fall over. It didn’t seem to matter how much extra voltage I gave the system, it couldn’t get through a full run.
The other issue is that with the extra voltage temperatures go through the roof, even with a closed-loop water cooler whirring away atop it. I had to shut down the X264 v5 test when I started upping the CPU voltage because my 7700K was running up to 100°C. Even in the stable 4.9GHz configuration it was peaking at 92°C which just feels too high to be run like that as normal.
Frustratingly this seems to be down to the thermal interface material (TIM) Intel are using on both the Skylake and Kaby Lake CPU generations. The heatspreader sits between the processor itself and the cooling block of your chip chiller, inside that heatspreader is a thermally conductive compound designed to allow as efficient a transfer of heat from CPU to cooler as possible.
Unfortunately if you use a poor quality TIM the heat isn’t pulled away from the silicon efficiently enough and the CPU gets super hot. Someone with an early 7700K sample, and potentially a technological death-wish, delidded his processor (removed the heatspreader) and changed out the default TIM inside. That netted him a thermal difference of around 26°C. That’s a big difference in temperature and would make a 4.9-5GHz overclock actually useable day-to-day. As one of the premium K-series chips, designed for overclocking, you might expect Intel to put better TIM in these processors. As all i7s are created equally in the factory however that’s not practicable.
Intel Core i7 7700K verdict
Here it comes, the $350 question: should you buy the Core i7 7700K? The answer is not an easy one because while the top-end Kaby Lake processor is the most advanced CPU silicon around it’s by no means a must-have component.
Realistically I can’t recommend you buy a 7700K unless you’re upgrading from a four or five year-old i7 and absolutely need that combination of cores and threads. But even then, it’s not cut and dried – the Core i7 6700K is practically as good and may even turn up a good deal cheaper than the 7700K.
The good news there is that if you’ve got a 6700K in your system and were starting to feel a little jealous of the new CPU generation then you’ve got no reason for concern. No-one with a Skylake CPU should consider a Kaby Lake chip unless they’re switching from i3 to i5 or i5 to i7. And if you’re a gamer first then the frame rate performance difference between an i5 and an i7 CPU is minimal, so I’d recommend you make a beeline for the more interesting i5 7600K rather than the top-spec Kaby Lake.
Though, that said, if you’re looking to put together a new rig from scratch then AMD’s fantastic Ryzen 5 1600X is the CPU I’d recommend building your new rig around. It’s got three times the thread-count of the K-series i5 and can pretty much match if for gaming performance for the same price. And that also makes it significantly cheaper than the i7 7700Kandstill has a higher core and thread-count for any games or apps that do benefit from multi-threaded CPU performance.
Kaby Lake’s top chip then is entirely uninspiring. The Core i7 7700K isn’t a worthy CPU upgrade, only really of any interest if you’re dead set on buying a brand new, pre-built i7 rig. So, bring on Zen. Don’t let us down.