IntelBX80648I75930K
IntelBX80662I76700K

6 Cores, 12 Threads
@3.5GHz Haswell-E (2014)

4 Cores, 8 Threads
@4.0GHz Skylake (2015)

Real World Speed
Performance profile from 217,856 user samples
12,388 User Benchmarks
Best Bench: 107% Base clock 3.5 GHz, turbo 3.7 GHz (avg)
Worst Bench: 76% Base clock 4.4 GHz, turbo 1.5 GHz (avg)
Poor: 76% Great: 107%
SPEED RANK: 34th / 1110
Gaming
Gaming 90%
Nuclear submarine
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 79%
Battleship
205,468 User Benchmarks
Best Bench: 106% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 75% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 75% Great: 106%
SPEED RANK: 33rd / 1110
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
90 % 90.6 % +1%
SC Mixed
Avg. Single Core Mixed Speed
112 Pts 128 Pts Slightly faster single-core speed.
+14%
QC Mixed
Avg. Quad Core Mixed Speed
443 Pts 443 Pts
MC Mixed
Avg. Multi Core Mixed Speed
889 Pts Much faster multi-core speed.
+32%
671 Pts
SC Mixed
OC Single Core Mixed Speed
134 Pts 144 Pts Slightly faster OC single-core speed.
+7%
QC Mixed
OC Quad Core Mixed Speed
527 Pts 532 Pts +1%
MC Mixed
OC Multi Core Mixed Speed
1046 Pts Much faster OC multi-core speed.
+37%
766 Pts
Market Share
Based on 9,308,324 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.17 % 1.77 % Hugely higher market share.
+941%
Value
Value For Money
69.1 % 85.7 % Better value.
+24%
User Rating
UBM User Rating
59 % 67 % Slightly more popular.
+14%
Price
Price (score)
$590 $339 Much cheaper.
+43%
Age
Newest
46 Months 34 Months More recent.
+26%
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 Much higher thread count.
+50%
8 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.5 GHz 4 GHz Slightly faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
3.7 GHz 4.2 GHz Slightly faster turbo frequency.
+14%
SC Int
Single Core Integer Speed
133 Pts 142 Pts Slightly faster single-core int speed.
+7%
SC Float
Single Core Floating Point Speed
134 Pts 147 Pts Slightly faster single-core fp speed.
+10%
QC Int
Quad Core Integer Speed
521 Pts 523 Pts +0%
QC Float
Quad Core Floating Point Speed
528 Pts 551 Pts +4%
MC Int
Multi Core Integer Speed
991 Pts Much faster multi-core int speed.
+39%
711 Pts
MC Float
Multi Core Floating Point Speed
1065 Pts Much faster multi-core fp speed.
+32%
809 Pts
Series
CPU Architecture
Haswell-E (2014) Skylake (2015)
Socket
Motherboard Socket
LGA2011-V3 FCLGA1151
Graphics
Integrated Graphics
None HD 530
Launch Date
Launch Date
Q3'14 Q3'15
Cache
Cache
15 MB SmartCache 8 MB SmartCache
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
$583.00 - $594.00 $339.00 - $350.00
Bus Speed
Bus Speed
0 GT/s 8 GT/s DMI3
Memory Types
Memory Types
DDR4 1333/1600/2133 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Channels
Max # of Memory Channels
4 2
Memory Bandwidth
Max Memory Bandwidth
68 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 530
Package Size
Package Size
52.5mm x 45.0mm 37.5mm x 37.5mm
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »
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The Intel 5930K is Intel's new middle tier Haswell-E prosumer CPU. This model has base/turbo clocks of 3.5/3.7 GHz and sports 6 physical cores with 12 hyperthreads. The 5930K offers enormous processing throughput but like its Haswell-E siblings it lacks in single and dual-core speed. Comparing the 5930K and 4790K shows that the 4790K offers nearly 20% more single and dual core throughput and is priced nearly 40% lower than the 5930K. The 5930K does win hands down on multi-core workloads but these are not generally relevant to consumers. Finally since the Haswell-E architecture is coupled with the X99 chipset it requires far more expensive DDR4 RAM with offers little upside over DDR3. [Sep '14 CPUPro]

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The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

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Processor Rankings (Price vs Performance) June 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
AMD Ryzen 5 1600 $175Nvidia GTX 1070 $447Samsung 850 Evo 250GB $104
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $117
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $116
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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