i7-7700K vs i7-6950X

VS

Aggregate performance score

Core i7-6950X
2016
10 cores / 20 threads, 140 Watt
10.92
+79.9%
Core i7-7700K
2017
4 cores / 8 threads, 91 Watt
6.07

Core i7-6950X outperforms Core i7-7700K by an impressive 80% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6950X and Core i7-7700K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking7091086
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.841.49
Market segmentDesktop processorDesktop processor
SeriesIntel Core i7 (Desktop)Intel Core i7 (Desktop)
Power efficiency7.386.31
Architecture codenameBroadwell-E (2016)Kaby Lake (2016−2019)
Release date31 May 2016 (8 years ago)3 January 2017 (7 years ago)
Launch price (MSRP)$1,723$339

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-7700K has 77% better value for money than i7-6950X.

Detailed specifications

Core i7-6950X and Core i7-7700K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores10 (Deca-Core)4 (Quad-Core)
Threads208
Base clock speed3 GHz4.2 GHz
Boost clock speed4 GHz4.5 GHz
Bus typeno dataDMI 3.0
Bus rate9.6 GT/s / QPI4 × 8 GT/s
Multiplierno data42
L1 cache32K (per core)64K (per core)
L2 cache256K (per core)256K (per core)
L3 cache25 MB (shared)8 MB (shared)
Chip lithography14 nm14 nm
Die size246 mm2no data
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)72 °C72 °C
Number of transistors3,800 millionno data
64 bit support++
Windows 11 compatibility--
Unlocked multiplier++

Compatibility

Information on Core i7-6950X and Core i7-7700K compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11 (Uniprocessor)
SocketFCLGA2011FCLGA1151
Power consumption (TDP)140 Watt91 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6950X and Core i7-7700K. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX-+
Idle States++
Thermal Monitoring-+
Smart Response+no data
Turbo Boost Max 3.0+no data

Security technologies

Core i7-6950X and Core i7-7700K technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB++
Secure Keyno data+
MPX-+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6950X and Core i7-7700K are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6950X and Core i7-7700K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR3, DDR4
Maximum memory size128 GB64 GB
Max memory channels42
Maximum memory bandwidthno data38.397 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics 630
Max video memoryno data64 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.15 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i7-6950X and Core i7-7700K integrated GPUs.

Number of displays supportedno data3

Graphics image quality

Maximum display resolutions supported by Core i7-6950X and Core i7-7700K integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core i7-6950X and Core i7-7700K integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core i7-6950X and Core i7-7700K.

PCIe version3.03.0
PCI Express lanes4016

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-6950X 10.92
+79.9%
i7-7700K 6.07

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-6950X 17353
+79.9%
i7-7700K 9645

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-6950X 1316
i7-7700K 1592
+21%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-6950X 8582
+67.1%
i7-7700K 5135

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-6950X 6231
i7-7700K 7305
+17.2%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-6950X 40378
+39.7%
i7-7700K 28903

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-6950X 10658
+4.9%
i7-7700K 10156

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-6950X 3.5
+58.9%
i7-7700K 5.56

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-6950X 20
+92.9%
i7-7700K 10

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i7-6950X 1859
+98.1%
i7-7700K 939

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i7-6950X 156
i7-7700K 193
+23.8%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-6950X 1.9
i7-7700K 2.19
+15.3%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-6950X 10.5
+92.7%
i7-7700K 5.5

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-6950X 101
+64%
i7-7700K 62

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-6950X 196
i7-7700K 230
+17.3%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-6950X 8450
+45.1%
i7-7700K 5823

Geekbench 2

i7-6950X 22114
+42.9%
i7-7700K 15476

3DMark Fire Strike Physics

i7-6950X 19410
+42.9%
i7-7700K 13580

Geekbench 4.0 64-bit multi-core

i7-6950X 26761
+50.3%
i7-7700K 17800

Geekbench 4.0 64-bit single-core

i7-6950X 4049
i7-7700K 5480
+35.3%

Gaming performance

Pros & cons summary


Performance score 10.92 6.07
Recency 31 May 2016 3 January 2017
Physical cores 10 4
Threads 20 8
Power consumption (TDP) 140 Watt 91 Watt

i7-6950X has a 79.9% higher aggregate performance score, and 150% more physical cores and 150% more threads.

i7-7700K, on the other hand, has an age advantage of 7 months, and 53.8% lower power consumption.

The Core i7-6950X is our recommended choice as it beats the Core i7-7700K in performance tests.


Should you still have questions on choice between Core i7-6950X and Core i7-7700K, ask them in Comments section, and we shall answer.

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Intel Core i7-6950X
Core i7-6950X
Intel Core i7-7700K
Core i7-7700K

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Community ratings

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Questions & comments

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