IntelBX80646I74790
IntelBX80671I76900K

4 Cores, 8 Threads @3.6GHz, Haswell.
Release date: Q2 2014.

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

Real World Speed
Performance profile from 261,782 user samples
255,027 User Benchmarks
Best Bench: 80% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 58% Base clock 3.6 GHz, turbo 1.5 GHz (avg)
Poor: 58% Great: 80%
SPEED RANK: 372nd / 1445
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
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 / 1445
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 83%
Aircraft carrier
Effective Speed
Effective CPU Speed
71.4 % 85.9 % Faster effective speed.
+20%
Memory
Avg. Memory Latency
82.6 Pts 87.3 Pts Slightly lower memory latency.
+6%
1-Core
Avg. Single Core Speed
98.4 Pts 114 Pts Faster single-core speed.
+16%
2-Core
Avg. Dual Core Speed
187 Pts 228 Pts Faster dual-core speed.
+22%
4-Core
Avg. Quad Core Speed
327 Pts 454 Pts Much faster quad-core speed.
+39%
8-Core
Avg. Octa Core Speed
482 Pts 819 Pts Much faster octa-core speed.
+70%
Memory
OC Memory Latency
93.6 Pts 95.9 Pts +2%
1-Core
OC Single Core Speed
109 Pts 138 Pts Faster OC single-core speed.
+27%
2-Core
OC Dual Core Speed
214 Pts 276 Pts Faster OC dual-core speed.
+29%
4-Core
OC Quad Core Speed
377 Pts 545 Pts Much faster OC quad-core speed.
+45%
8-Core
OC Octa Core Speed
551 Pts 985 Pts Much faster OC octa-core speed.
+79%
Market Share
Based on 67,952,461 CPUs tested
Market Share
Market Share (trailing 30 days)
0.62 % Insanely higher market share.
+3,000%
0.02 %
Value
Value For Money
87.1 % 108 % Better value.
+24%
User Rating
UBM User Rating
62 % More popular.
+19%
52 %
Price
Price (score)
$135 $120 Cheaper.
+11%
Age
Newest
120 Months 95 Months More recent.
+21%
TDP
Thermal Design Power (TDP)
84 Watts Much more energy efficient.
+40%
140 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
8 threads 16 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.6 GHz Faster base frequency.
+12%
3.2 GHz
Turbo Clock
Turbo Clock Speed
4 GHz 4 GHz
64-Core
OC Multi Core Speed
556 Pts 1428 Pts Hugely faster OC 64-core speed.
+157%
64-Core
Avg. Multi Core Speed
495 Pts 1206 Pts Hugely faster 64-core speed.
+144%
Series
CPU Architecture
Haswell Broadwell-E
Socket
Motherboard Socket
FCLGA1150 LGA2011-V3
Graphics
Integrated Graphics
HD 4600 None
Launch Date
Launch Date
Q2'14 Q2'16
Cache
Cache
8 MB SmartCache 20 MB
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$303.00 - $312.00 N/A
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 128 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4 2400/2133
Memory Channels
Max # of Memory Channels
2 4
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 None
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
Up to 3.0 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 40

More specs » More specs »
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The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

MORE DETAILS

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]

MORE DETAILS

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

  • - 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
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

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