IntelBX80648I75820K
IntelBX80677I57600K

6 Cores, 12 Threads @3.3GHz, Haswell-E.
Release date: Q3 2014.

4 Cores, 4 Threads @3.8GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 104,409 user samples
37,201 User Benchmarks
Best Bench: 102% Base clock 3.3 GHz, turbo 4.8 GHz (avg)
Worst Bench: 68% Base clock 3.3 GHz, turbo 1.2 GHz (avg)
Poor: 68% Great: 102%
SPEED RANK: 52nd / 1132
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 75%
Battleship
67,208 User Benchmarks
Best Bench: 109% Base clock 3.8 GHz, turbo 5.1 GHz (avg)
Worst Bench: 74% Base clock 3.8 GHz, turbo 1.25 GHz (avg)
Poor: 74% Great: 109%
SPEED RANK: 31st / 1132
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 56%
Gunboat
Effective Speed
Effective CPU Speed
84.3 % 92.2 % Slightly faster effective speed.
+9%
SC Mixed
Avg. Single Core Mixed Speed
105 Pts 129 Pts Faster single-core speed.
+23%
QC Mixed
Avg. Quad Core Mixed Speed
412 Pts 475 Pts Faster quad-core speed.
+15%
MC Mixed
Avg. Multi Core Mixed Speed
847 Pts Much faster multi-core speed.
+74%
487 Pts
SC Mixed
OC Single Core Mixed Speed
128 Pts 149 Pts Faster OC single-core speed.
+16%
QC Mixed
OC Quad Core Mixed Speed
504 Pts 570 Pts Slightly faster OC quad-core speed.
+13%
MC Mixed
OC Multi Core Mixed Speed
1016 Pts Much faster OC multi-core speed.
+77%
574 Pts
Market Share
Based on 11,605,804 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.39 % 0.84 % Hugely higher market share.
+115%
Value
Value For Money
75.6 % 97.5 % Better value.
+29%
User Rating
UBM User Rating
66 % 97 % Much more popular.
+47%
Price
Price (score)
$391 $251 Much cheaper.
+36%
Age
Newest
50 Months 21 Months Much more recent.
+58%
TDP
Thermal Design Power (TDP)
140 Watts 91 Watts Much more energy efficient.
+35%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+200%
4 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.3 GHz 3.8 GHz Faster base frequency.
+15%
Turbo Clock
Turbo Clock Speed
3.6 GHz 4.2 GHz Faster turbo frequency.
+17%
SC Int
Single Core Integer Speed
129 Pts 144 Pts Slightly faster single-core int speed.
+12%
SC Float
Single Core Floating Point Speed
128 Pts 155 Pts Faster single-core fp speed.
+21%
QC Int
Quad Core Integer Speed
507 Pts 541 Pts Slightly faster quad-core int speed.
+7%
QC Float
Quad Core Floating Point Speed
507 Pts 614 Pts Faster quad-core fp speed.
+21%
MC Int
Multi Core Integer Speed
964 Pts Much faster multi-core int speed.
+76%
547 Pts
MC Float
Multi Core Floating Point Speed
1034 Pts Much faster multi-core fp speed.
+69%
613 Pts
Series
CPU Architecture
Haswell-E Kaby Lake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1151
Graphics
Integrated Graphics
None HD 630
Launch Date
Launch Date
Q3'14 Q1'17
Cache
Cache
15 MB SmartCache 6 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.2, AVX 2.0, AES SSE4.1/4.2, AVX 2.0
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$389.00 - $396.00 $242.00 - $243.00
Bus Speed
Bus Speed
0 GT/s 8 GT/s DMI3
Memory Types
Memory Types
DDR4 1333/1600/2133 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels
4 2
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 630
Package Size
Package Size
52.5mm x 45.0mm 37.5mm x 37.5mm
Max # of PCI Express Lanes
Max # of PCI Express Lanes
28 16

More specs » More specs »
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The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 CPUPro]

MORE DETAILS

The i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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