IntelBX80671I76950X
IntelBX80684I58600K

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

6 Cores, 6 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 270,972 user samples
6,135 User Benchmarks
Best Bench: 100% Base clock 3 GHz, turbo 4.55 GHz (avg)
Worst Bench: 77% Base clock 3 GHz, turbo 1.25 GHz (avg)
Poor: 77% Great: 100%
SPEED RANK: 164th / 1441
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 90%
Aircraft carrier
264,837 User Benchmarks
Best Bench: 101% Base clock 3.6 GHz, turbo 4.95 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 79% Great: 101%
SPEED RANK: 136th / 1441
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 74%
Battleship
Effective Speed
Effective CPU Speed
86.8 % 90.7 % +4%
Memory
Avg. Memory Latency
88.2 Pts 90.1 Pts +2%
1-Core
Avg. Single Core Speed
114 Pts 129 Pts Faster single-core speed.
+13%
2-Core
Avg. Dual Core Speed
228 Pts 257 Pts Faster dual-core speed.
+13%
4-Core
Avg. Quad Core Speed
458 Pts 502 Pts Slightly faster quad-core speed.
+10%
8-Core
Avg. Octa Core Speed
884 Pts Much faster octa-core speed.
+35%
656 Pts
Memory
OC Memory Latency
95.9 Pts 96.5 Pts +1%
1-Core
OC Single Core Speed
142 Pts 151 Pts Slightly faster OC single-core speed.
+6%
2-Core
OC Dual Core Speed
283 Pts 302 Pts Slightly faster OC dual-core speed.
+7%
4-Core
OC Quad Core Speed
565 Pts 594 Pts Slightly faster OC quad-core speed.
+5%
8-Core
OC Octa Core Speed
1118 Pts Much faster OC octa-core speed.
+40%
798 Pts
Market Share
Based on 67,708,928 CPUs tested
Market Share
Market Share (trailing 30 days)
0.02 % 0.48 % Insanely higher market share.
+2,300%
Value
Value For Money
73.9 % 103 % Much better value.
+40%
User Rating
UBM User Rating
62 % 78 % More popular.
+26%
Price
Price (score)
$499 $173 Much cheaper.
+65%
Age
Newest
94 Months 78 Months More recent.
+17%
TDP
Thermal Design Power (TDP)
140 Watts 95 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
10 cores Much higher core count.
+67%
6 cores
Threads
CPU Processing Threads
20 threads Hugely higher thread count.
+233%
6 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3 GHz 3.6 GHz Faster base frequency.
+20%
Turbo Clock
Turbo Clock Speed
4 GHz 4.3 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Speed
1799 Pts Hugely faster OC 64-core speed.
+117%
828 Pts
64-Core
Avg. Multi Core Speed
1470 Pts Hugely faster 64-core speed.
+116%
681 Pts
Series
CPU Architecture
Broadwell-E Coffee Lake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1151
Graphics
Integrated Graphics
None UHD 630
Launch Date
Launch Date
Q2'16 Q4'17
Cache
Cache
25 MB 9 MB
Max Turbo Frequency
Max Turbo Frequency
4 GHz 4.30 GHz
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 64 GB
Memory Types
Memory Types
DDR4 2400/2133 DDR4-2666
Memory Channels
Max # of Memory Channels
4 2
Processor Graphics
Processor Graphics ‡
None Intel® UHD Graphics 630
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
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 unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. [Oct '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) April 2024 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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HDDRAMUSB
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