IntelBX80671I76900K
IntelBX80662I36320

8 Cores, 16 Threads @3.2GHz, Broadwell-E.
Release date: Q2 2016.

2 Cores, 4 Threads @3.9GHz, Skylake.
Release date: Q4 2015.

Real World Speed
Performance profile from 8,489 user samples
6,755 User Benchmarks
Best Bench: 98% Base clock 4.1 GHz, turbo 4.45 GHz (avg)
Worst Bench: 76% Base clock 3.2 GHz, turbo 1.2 GHz (avg)
Poor: 76% Great: 98%
SPEED RANK: 171st / 1442
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 83%
Aircraft carrier
1,734 User Benchmarks
Best Bench: 76% Base clock 3.9 GHz, turbo 3.9 GHz (avg)
Worst Bench: 57% Base clock 3.9 GHz, turbo 3.9 GHz (avg)
Poor: 57% Great: 76%
SPEED RANK: 412th / 1442
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 79%
Battleship
Workstation
Workstation 51%
Yacht
Effective Speed
Effective CPU Speed
85.9 % Faster effective speed.
+24%
69.4 %
Memory
Avg. Memory Latency
87.3 Pts +1% 86.3 Pts
1-Core
Avg. Single Core Speed
114 Pts +1% 113 Pts
2-Core
Avg. Dual Core Speed
228 Pts Faster dual-core speed.
+15%
199 Pts
4-Core
Avg. Quad Core Speed
454 Pts Much faster quad-core speed.
+49%
305 Pts
8-Core
Avg. Octa Core Speed
819 Pts Hugely faster octa-core speed.
+163%
311 Pts
Memory
OC Memory Latency
95.9 Pts +1% 94.6 Pts
1-Core
OC Single Core Speed
138 Pts Faster OC single-core speed.
+11%
124 Pts
2-Core
OC Dual Core Speed
276 Pts Faster OC dual-core speed.
+18%
233 Pts
4-Core
OC Quad Core Speed
545 Pts Much faster OC quad-core speed.
+58%
345 Pts
8-Core
OC Octa Core Speed
985 Pts Hugely faster OC octa-core speed.
+185%
346 Pts
Market Share
Based on 67,813,697 CPUs tested
Market Share
Market Share (trailing 30 days)
0.03 % Insanely higher market share.
+∞%
0 %
Value
Value For Money
108 % Much better value.
+35%
80.2 %
User Rating
UBM User Rating
52 % +2% 51 %
Price
Price (score)
$120 Cheaper.
+27%
$165
Age
Newest
95 Months Slightly more recent.
+8%
103 Months
TDP
Thermal Design Power (TDP)
140 Watts 47 Watts Much more energy efficient.
+66%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+300%
2 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+300%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.2 GHz 3.9 GHz Faster base frequency.
+22%
Turbo Clock
Turbo Clock Speed
4 GHz +3% 3.9 GHz
64-Core
OC Multi Core Speed
1428 Pts Hugely faster OC 64-core speed.
+313%
346 Pts
64-Core
Avg. Multi Core Speed
1206 Pts Hugely faster 64-core speed.
+284%
314 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
20 MB 4 MB SmartCache
Recommended Price
Recommended Customer Price
N/A $149.00 - $157.00
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
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 530
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »
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The Core i7-6900K is one of four new Broadwell-E prosumer CPUs. This model has eight cores with base and turbo frequencies of 3.2 and 4.0 GHz respectively. The 6900K is based on a 14 nm architecture, it has a TDP of 140 watts, 40 PCIe 3.0 lanes and no integrated graphics. Because of its MSRP of $1,100, the 6900K only makes sense for very niche use cases which include top end graphics design and video production. Comparing the 6900K and 6700K shows that for typical desktop use the 6900K only offers a gain of around 12% for a whopping three 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 6900K. That said, as a workstation CPU the 6900K is bested only by the $2,000 flagship ten core 6950X. (6900K vs 6950X[Jun '16 CPUPro]

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Processor Rankings (Price vs Performance) May 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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How it works

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  • - 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
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
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 Frequently Asked Questions

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