IntelBX80671I76950X
IntelBX80662I76700K

10 Cores, 20 Threads @3.0GHz, Broadwell-E.
Release date: Q2 2016.

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 418,438 user samples
4,404 User Benchmarks
Best Bench: 99% Base clock 3 GHz, turbo 4.5 GHz (avg)
Worst Bench: 78% Base clock 3 GHz, turbo 1.25 GHz (avg)
Poor: 78% Great: 99%
SPEED RANK: 55th / 1258
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
414,034 User Benchmarks
Best Bench: 95% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 75% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 75% Great: 95%
SPEED RANK: 78th / 1258
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed
87.4 % +3% 84.7 %
Memory
Avg. Memory Latency
91.2 Pts +0% 90.8 Pts
1-Core
Avg. Single Core Mixed Speed
111 Pts 125 Pts Faster single-core speed.
+13%
2-Core
Avg. Dual Core Mixed Speed
222 Pts 240 Pts Slightly faster dual-core speed.
+8%
4-Core
Avg. Quad Core Mixed Speed
449 Pts Slightly faster quad-core speed.
+6%
425 Pts
8-Core
Avg. Octa Core Mixed Speed
879 Pts Much faster octa-core speed.
+38%
636 Pts
Memory
OC Memory Latency
97.1 Pts +0% 96.9 Pts
1-Core
OC Single Core Mixed Speed
135 Pts 142 Pts Slightly faster OC single-core speed.
+5%
2-Core
OC Dual Core Mixed Speed
270 Pts 278 Pts +3%
4-Core
OC Quad Core Mixed Speed
540 Pts Slightly faster OC quad-core speed.
+6%
509 Pts
8-Core
OC Octa Core Mixed Speed
1065 Pts Much faster OC octa-core speed.
+44%
740 Pts
Market Share
Based on 31,749,917 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 1.14 % Insanely higher market share.
+11,300%
Value
Value For Money
61.4 % 85.2 % Much better value.
+39%
User Rating
UBM User Rating
84 % 134 % Much more popular.
+60%
Price
Price (score)
$1,000 $273 Much cheaper.
+73%
Age
Newest
50 Months More recent.
+17%
60 Months
TDP
Thermal Design Power (TDP)
140 Watts 91 Watts Much more energy efficient.
+35%
Cores
CPU Processing Cores
10 cores Hugely higher core count.
+150%
4 cores
Threads
CPU Processing Threads
20 threads Hugely higher thread count.
+150%
8 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3 GHz 4 GHz Much faster base frequency.
+33%
Turbo Clock
Turbo Clock Speed
4 GHz 4.2 GHz +5%
64-Core
OC Multi Core Mixed Speed
1726 Pts Hugely faster OC 64-core speed.
+132%
744 Pts
64-Core
Avg. Multi Core Mixed Speed
1433 Pts Hugely faster 64-core speed.
+123%
644 Pts
Series
CPU Architecture
Broadwell-E Skylake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1151
Graphics
Integrated Graphics
None HD 530
Launch Date
Launch Date
Q2'16 Q3'15
Cache
Cache
25 MB 8 MB SmartCache
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency
4 GHz 4.2 GHz
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 64 GB
Memory Types
Memory Types
DDR4 2400/2133 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels
4 2
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 530
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »
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The Core i7-6950X is Intel’s new top of the range prosumer CPU. This flagship model has a whopping ten cores with base and turbo frequencies of 3.0 and 4.0 GHz respectively. The 6950X is based on the 14 nm Broadwell-E architecture. It has a TDP of 140 watts, 40 PCIe 3.0 lanes and no integrated graphics. Because of its ridiculously high MSRP of around $2,000, this CPU only makes sense for very niche use cases which could include top end graphics design or video production workstations. Comparing the 6950X and 6700K shows that for typical desktop use the 6950X only offers a gain of around 20% for a whopping 6 fold price increase. This is because desktop computing largely depends on single core performance and the Skylake i7-6700K is both clocked higher and has higher IPC due to its one generation lead over the 6950X. That said, if you want the most powerful desktop processor money can buy, then the 6950X hits the spot. [Jun '16 CPUPro]

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The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

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Processor Rankings (Price vs Performance) August 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
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  • - Explore your best upgrade options with a virtual PC build.
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