IntelBX80671I76800K
IntelBX80673I97900X

6 Cores, 12 Threads @3.4GHz, Broadwell-E.
Release date: Q2 2016.

10 Cores, 20 Threads @3.8GHz, Skylake-X.
Release date: Q2 2017.

Real World Speed
Performance profile from 69,628 user samples
50,196 User Benchmarks
Best Bench: 90% Base clock 3.4 GHz, turbo 4.1 GHz (avg)
Worst Bench: 71% Base clock 3.4 GHz, turbo 1.2 GHz (avg)
Poor: 71% Great: 90%
SPEED RANK: 221st / 1442
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 82%
Aircraft carrier
Workstation
Workstation 71%
Battleship
19,432 User Benchmarks
Best Bench: 92% Base clock 3.3 GHz, turbo 4.95 GHz (avg)
Worst Bench: 72% Base clock 3.3 GHz, turbo 0.7 GHz (avg)
Poor: 72% Great: 92%
SPEED RANK: 209th / 1442
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
Effective Speed
Effective CPU Speed
80.9 % 81.9 % +1%
Memory
Avg. Memory Latency
86 Pts Lower memory latency.
+13%
76.1 Pts
1-Core
Avg. Single Core Speed
107 Pts 123 Pts Faster single-core speed.
+15%
2-Core
Avg. Dual Core Speed
214 Pts 243 Pts Faster dual-core speed.
+14%
4-Core
Avg. Quad Core Speed
408 Pts 470 Pts Faster quad-core speed.
+15%
8-Core
Avg. Octa Core Speed
660 Pts 898 Pts Much faster octa-core speed.
+36%
Memory
OC Memory Latency
94.9 Pts Slightly lower OC memory latency.
+8%
87.6 Pts
1-Core
OC Single Core Speed
124 Pts 138 Pts Faster OC single-core speed.
+11%
2-Core
OC Dual Core Speed
248 Pts 276 Pts Faster OC dual-core speed.
+11%
4-Core
OC Quad Core Speed
483 Pts 548 Pts Faster OC quad-core speed.
+13%
8-Core
OC Octa Core Speed
770 Pts 1069 Pts Much faster OC octa-core speed.
+39%
Market Share
Based on 67,742,069 CPUs tested
Market Share
Market Share (trailing 30 days)
0.05 % Much higher market share.
+67%
0.03 %
Value
Value For Money
106 % Much better value.
+49%
71.5 %
User Rating
UBM User Rating
65 % More popular.
+18%
55 %
Price
Price (score)
$103 Much cheaper.
+77%
$455
Age
Newest
94 Months 81 Months More recent.
+14%
TDP
Thermal Design Power (TDP)
140 Watts 140 Watts
Cores
CPU Processing Cores
6 cores 10 cores Much higher core count.
+67%
Threads
CPU Processing Threads
12 threads 20 threads Much higher thread count.
+67%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.4 GHz 3.8 GHz Faster base frequency.
+12%
Turbo Clock
Turbo Clock Speed
3.8 GHz 4.3 GHz Faster turbo frequency.
+13%
64-Core
OC Multi Core Speed
956 Pts 1853 Pts Hugely faster OC 64-core speed.
+94%
64-Core
Avg. Multi Core Speed
827 Pts 1589 Pts Hugely faster 64-core speed.
+92%
Series
CPU Architecture
Broadwell-E Skylake-X
Socket
Motherboard Socket
LGA2011-V3 LGA2066
Graphics
Integrated Graphics
None None
Launch Date
Launch Date
Q2'16 Q2'17
Cache
Cache
15 MB 13.75 MB L3
Recommended Price
Recommended Customer Price
N/A $989.00 - $999.00
Max Turbo Frequency
Max Turbo Frequency
3.8 GHz 4.30 GHz
Memory Types
Memory Types
DDR4 2400/2133 DDR4-2666
Max # of PCI Express Lanes
Max # of PCI Express Lanes
28 44

More specs » More specs »
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The Core i7-6800K is the weakest of four new 14 nm Broadwell-E prosumer CPUs. This model has six cores with base and turbo frequencies of 3.4 and 3.8 GHz, a TDP of 140 watts and 28 PCIe 3.0 lanes. The 6800K closely matches, and supersedes, the very popular Haswell-E 5820K. Because of its MSRP of around $500, this CPU only makes sense for niche use cases which include graphics design, video production or multi GPU gaming. Comparing the 6800K and 6700K shows that for typical desktop use, at stock clocks, the 6800K actually lags the 6700K by around 10%. This is because desktop computing largely depends on single core performance and the Skylake i7-6700K is both clocked higher (Base clock 4.0 GHz vs 3.4 GHz) and has higher IPC due to its one generation lead over the 6800K. If the 6800K proves to be a capable overclocker then it may challenge the 6700K on a range of core-heavy use cases, time will tell. [Jun '16 CPUPro]

MORE DETAILS

Intel’s core i9-7900X, from the Skylake-X series, is Intel’s latest 10-core, 20-thread flagship processor. It's the first to bear the i9 moniker and utilize the new X299 (Basin Falls) chipset/motherboard. The 7900X is the fastest CPU on the market today, however, imminent competition from AMD’s 16-core, 32-thread Ryzen Threadripper CPUs and the forthcoming release of more Intel Core X series mean that its reign will be a short one. The i9-7900X supersedes the 10-core Broadwell-E core i7-6950X that held the crown for little over a year. Both are extremely powerful and pricey high end desktop processors (HEDTs) which excel in multi-threaded tasks such as media encoding. However, despite the same power draw (TDP 140W), the newer i9-7900X betters the i7-6950X in terms of peak overclocked performance by 10% mostly thanks to increased clock speeds from 3.0GHz/4.0GHz to 3.3GHz/4.3GHz for base/turbo. It also betters the i7-6950X on price by around 28%. This all translates to the i9-7900X offering around 20% more value for money, even despite its eye-watering $999 price tag. The more accessible pricing (albeit not accessible for the majority) and hurried release of the i9-7900k to market is widely perceived as a reaction to AMD’s Ryzen Threadripper CPUs, rumoured for release towards the end of July 2017. So if you want to own the fastest consumer CPU in the world, it would be wise to wait for the dust to settle. [Jul '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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Welcome to our 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 value for money upgrades.

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 Frequently Asked Questions

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