i7-6820HK vs i7-6950X

#ad 
Buy on Amazon
VS

Aggregate performance score

Core i7-6950X
2016
10 cores / 20 threads, 140 Watt
10.92
+145%
Core i7-6820HK
2015
4 cores / 8 threads, 45 Watt
4.45

Core i7-6950X outperforms Core i7-6820HK by a whopping 145% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6950X and Core i7-6820HK processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking7181331
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.89no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7 (Desktop)Intel Core i7
Power efficiency7.389.36
Architecture codenameBroadwell-E (2016)Skylake (2015−2016)
Release date31 May 2016 (8 years ago)1 September 2015 (9 years ago)
Launch price (MSRP)$1,723$378

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-6950X and Core i7-6820HK 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 GHz2.7 GHz
Boost clock speed4 GHz3.6 GHz
Bus typeno dataDMI 3.0
Bus rate9.6 GT/s / QPI4 × 8 GT/s
Multiplierno data27
L1 cache32K (per core)256 KB
L2 cache256K (per core)1 MB
L3 cache25 MB (shared)8 MB
Chip lithography14 nm14 nm
Die size246 mm2122 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors3,800 millionno data
64 bit support++
Windows 11 compatibility--
Unlocked multiplier++

Compatibility

Information on Core i7-6950X and Core i7-6820HK 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)
SocketFCLGA2011FCBGA1440
Power consumption (TDP)140 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6950X and Core i7-6820HK. 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++
Enhanced SpeedStep (EIST)++
My WiFino data+
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX-+
Idle States++
Thermal Monitoring-+
Flex Memory Accessno data+
Smart Response++
Turbo Boost Max 3.0+no data

Security technologies

Core i7-6950X and Core i7-6820HK technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
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 i7-6820HK 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 i7-6820HK. 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 data34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics 530
Max video memoryno data64 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.05 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i7-6950X and Core i7-6820HK integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core i7-6950X and Core i7-6820HK 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
Max resolution over VGAno dataN/A

Graphics API support

APIs supported by Core i7-6950X and Core i7-6820HK 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 i7-6820HK.

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
+145%
i7-6820HK 4.45

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 17348
+145%
i7-6820HK 7068

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 1318
+9.2%
i7-6820HK 1207

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 8563
+118%
i7-6820HK 3920

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
+10.2%
i7-6820HK 5653

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
+90.8%
i7-6820HK 21165

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
+43.8%
i7-6820HK 7410

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
+109%
i7-6820HK 7.32

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
+158%
i7-6820HK 8

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
+162%
i7-6820HK 709

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
+2.3%
i7-6820HK 152

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
+9.8%
i7-6820HK 1.73

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
+169%
i7-6820HK 3.9

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
+59%
i7-6820HK 5314

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
+129%
i7-6820HK 44

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
+18.1%
i7-6820HK 166

Geekbench 3 32-bit multi-core

i7-6950X 31129
+131%
i7-6820HK 13486

Geekbench 3 32-bit single-core

i7-6950X 3387
i7-6820HK 3819
+12.8%

3DMark Fire Strike Physics

i7-6950X 19410
+157%
i7-6820HK 7560

Gaming performance

Pros & cons summary


Performance score 10.92 4.45
Recency 31 May 2016 1 September 2015
Physical cores 10 4
Threads 20 8
Power consumption (TDP) 140 Watt 45 Watt

i7-6950X has a 145.4% higher aggregate performance score, an age advantage of 8 months, and 150% more physical cores and 150% more threads.

i7-6820HK, on the other hand, has 211.1% lower power consumption.

The Core i7-6950X is our recommended choice as it beats the Core i7-6820HK in performance tests.

Note that Core i7-6950X is a desktop processor while Core i7-6820HK is a notebook one.


Should you still have questions on choice between Core i7-6950X and Core i7-6820HK, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-6950X
Core i7-6950X
Intel Core i7-6820HK
Core i7-6820HK

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.9 254 votes

Rate Core i7-6950X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.4 69 votes

Rate Core i7-6820HK on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-6950X or Core i7-6820HK, agree or disagree with our judgements, or report an error or mismatch.