IntelBX80684I78700K
IntelBX80677I77700K

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

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

CSGO
Dust 2 1080p Max
284 EFps Slightly Better CSGO EFps.
+5%
270 EFps
GTAV
Franklin & Lamar 1080p Max
106 EFps 108 EFps +2%
Overwatch
Temple of Anubis 1080p Max
139 EFps +4% 134 EFps
PUBG
M249 Training 1080p Max
139 EFps Better PUBG EFps.
+11%
125 EFps
Fortnite
UserBenchmark Island 1080p Max
139 EFps 145 EFps +4%
Real World Speed
Performance profile from 1,322,705 user samples
699,090 User Benchmarks
Best Bench: 99% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 78% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 78% Great: 99%
SPEED RANK: 83rd / 1358
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 81%
Aircraft carrier
623,615 User Benchmarks
Best Bench: 95% Base clock 4.2 GHz, turbo 4.85 GHz (avg)
Worst Bench: 72% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 72% Great: 95%
SPEED RANK: 103rd / 1358
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
89.4 % +4% 86.1 %
30 Oct19|Gamers Nexus
Intel i9-9900KS Review: Overclocki...
9 % Hitm2 9%, TWarW2 3%, F118 8%, GTAV 6%, SotTR 16%
14 Nov19|PCGamer
AMD Ryzen 9 3950X review
4 % Hitm2 5%, FarC5 8%, TWarW2 5%, SotTR 8%, ACO 6%, MESoW 1%, Divis2 2% StrangeB 1%, MetroEx 1%
10 Mar21|HardwareLUXX
Processor non grata: Rocket Lake-S...
17 % BFV 15%, SotTR 15%, MetroEx 23%, Divis2 15%
Memory
Avg. Memory Latency
91.3 Pts +1% 90.7 Pts
1-Core
Avg. Single Core Mixed Speed
129 Pts 130 Pts +1%
2-Core
Avg. Dual Core Mixed Speed
251 Pts +2% 247 Pts
4-Core
Avg. Quad Core Mixed Speed
471 Pts Slightly faster quad-core speed.
+7%
440 Pts
8-Core
Avg. Octa Core Mixed Speed
789 Pts Faster octa-core speed.
+16%
683 Pts
Memory
OC Memory Latency
96.8 Pts +0% 96.7 Pts
1-Core
OC Single Core Mixed Speed
146 Pts +1% 145 Pts
2-Core
OC Dual Core Mixed Speed
288 Pts +1% 284 Pts
4-Core
OC Quad Core Mixed Speed
550 Pts Slightly faster OC quad-core speed.
+9%
506 Pts
8-Core
OC Octa Core Mixed Speed
916 Pts Faster OC octa-core speed.
+16%
787 Pts
Market Share
Based on 54,638,501 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.13 % Higher market share.
+30%
0.87 %
Value
Value For Money
87.6 % Slightly better value.
+9%
80.4 %
User Rating
UBM User Rating
81 % 83 % +2%
Price
Price (score)
$300 Cheaper.
+16%
$357
Age
Newest
58 Months More recent.
+13%
67 Months
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
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 14 nm
Base Clock
Base Clock Speed
3.7 GHz 4.2 GHz Faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
4.7 GHz +4% 4.5 GHz
64-Core
OC Multi Core Mixed Speed
1165 Pts Much faster OC 64-core speed.
+48%
785 Pts
64-Core
Avg. Multi Core Mixed Speed
1001 Pts Much faster 64-core speed.
+45%
688 Pts
Series
CPU Architecture
Coffee Lake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 630
Launch Date
Launch Date
Q4'17 Q1'17
Cache
Cache
12 MB 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 4.50 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.15 GHz
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

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 Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) August 2022 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.
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.
  • - 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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CPUGPUSSD
Intel Core i5-12600K $270Nvidia RTX 3060-Ti $446Crucial MX500 250GB $42
Intel Core i5-12400F $160Nvidia RTX 3050 $292Samsung 850 Evo 120GB $106
Intel Core i7-12700K $378Nvidia RTX 3070 $536Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $62SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $453SanDisk Extreme 16GB $17
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