IntelBX80684I78700K
IntelBX80623I72600K

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

VS
About

4 Cores, 8 Threads @3.4GHz, Sandy Bridge.
Release date: Q1 2011.

Real World Speed
Performance profile from 459,732 user samples
368,008 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.35 GHz (avg)
Worst Bench: 79% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 79% Great: 107%
SPEED RANK: 16th / 1196
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 78%
Battleship
91,724 User Benchmarks
Best Bench: 79% Base clock 3.4 GHz, turbo 5 GHz (avg)
Worst Bench: 50% Base clock 3.4 GHz, turbo 2 GHz (avg)
Poor: 50% Great: 79%
SPEED RANK: 195th / 1196
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 43%
Speed boat
Effective Speed
Effective CPU Speed
93 % Much faster effective speed.
+47%
63.2 %
1-Core
Avg. Single Core Mixed Speed
137 Pts Much faster single-core speed.
+38%
99.1 Pts
2-Core
Avg. Dual Core Mixed Speed
269 Pts Much faster dual-core speed.
+41%
191 Pts
4-Core
Avg. Quad Core Mixed Speed
519 Pts Much faster quad-core speed.
+54%
336 Pts
8-Core
Avg. Octa Core Mixed Speed
846 Pts Much faster octa-core speed.
+74%
485 Pts
64-Core
Avg. Multi Core Mixed Speed
1056 Pts Hugely faster 64-core speed.
+115%
491 Pts
1-Core
OC Single Core Mixed Speed
154 Pts Faster OC single-core speed.
+28%
120 Pts
2-Core
OC Dual Core Mixed Speed
308 Pts Faster OC dual-core speed.
+30%
237 Pts
4-Core
OC Quad Core Mixed Speed
612 Pts Much faster OC quad-core speed.
+39%
439 Pts
8-Core
OC Octa Core Mixed Speed
991 Pts Much faster OC octa-core speed.
+64%
603 Pts
64-Core
OC Multi Core Mixed Speed
1226 Pts Hugely faster OC 64-core speed.
+103%
604 Pts
Market Share
Based on 21,859,080 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.99 % Hugely higher market share.
+352%
0.44 %
Value
Value For Money
86 % Slightly better value.
+14%
75.6 %
User Rating
UBM User Rating
142 % More popular.
+19%
119 %
Price
Price (score)
$369 $145 Much cheaper.
+61%
Age
Newest
25 Months Much more recent.
+76%
106 Months
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
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
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
3.7 GHz Slightly faster base frequency.
+9%
3.4 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Faster turbo frequency.
+24%
3.8 GHz
Series
CPU Architecture
Coffee Lake Sandy Bridge
Socket
Motherboard Socket
FCLGA1151 LGA1155
Graphics
Integrated Graphics
UHD 630 HD 3000
Launch Date
Launch Date
Q4'17 Q1'11
Cache
Cache
12 MB 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX
Lithography
Lithography
14 nm 32 nm
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3 1066/1333
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 3000
Graphics Base Frequency
Graphics Base Frequency
350 MHz 850 MHz
# of Displays Supported
# of Displays Supported ‡
3 2
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.35 GHz
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0

More specs » More specs »
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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

MORE DETAILS

The i7-2600K Sandy Bridge processor is two generations old and nearly three years out of date. The numerous owners of this superb processor should feel in no hurry to upgrade as it's still one of the fastest consumer processors, even by today's standards. The benchmark figures indicate that in terms of real-world performance this processor is only 5% slower than the third generation Ivy Bridge i7-3770K, not bad considering its age. That said new buyers will find both better energy efficiency and marginal performance improvements elsewhere[Feb '12 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) November 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. 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.
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.

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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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
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Intel Core i5-9600K $195AMD RX 590 $185Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia RTX 2060 $325Samsung 860 Evo 250GB $51
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Extreme 16GB $24
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