IntelBX80677I77700K
IntelBX8070110400F

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

6 Cores, 12 Threads @2.9GHz, Comet Lake.
Release date: Q2 2020.

CSGO
Dust 2 1080p Max
270 EFps Better CSGO EFps.
+13%
238 EFps
GTAV
Franklin & Lamar 1080p Max
108 EFps Slightly Better GTAV EFps.
+8%
100 EFps
Overwatch
Temple of Anubis 1080p Max
134 EFps 139 EFps +4%
PUBG
M249 Training 1080p Max
125 EFps 131 EFps +5%
Fortnite
UserBenchmark Island 1080p Max
145 EFps Better Fortnite EFps.
+11%
131 EFps
Real World Speed
Performance profile from 622,568 user samples
531,095 User Benchmarks
Best Bench: 96% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 74% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 74% Great: 96%
SPEED RANK: 72nd / 1323
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 73%
Battleship
91,473 User Benchmarks
Best Bench: 92% Base clock 2.9 GHz, turbo 4.05 GHz (avg)
Worst Bench: 77% Base clock 2.9 GHz, turbo 0.8 GHz (avg)
Poor: 77% Great: 92%
SPEED RANK: 79th / 1323
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 79%
Battleship
Effective Speed
Effective CPU Speed
87.2 % +1% 86.5 %
10 Mar21|HardwareLUXX
Processor non grata: Rocket Lake-S...
20 % BFV 11%, SotTR 21%, MetroEx 26%, Divis2 21%
Memory
Avg. Memory Latency
91 Pts +1% 90.3 Pts
1-Core
Avg. Single Core Mixed Speed
133 Pts Faster single-core speed.
+11%
120 Pts
2-Core
Avg. Dual Core Mixed Speed
253 Pts Slightly faster dual-core speed.
+8%
234 Pts
4-Core
Avg. Quad Core Mixed Speed
450 Pts +1% 446 Pts
8-Core
Avg. Octa Core Mixed Speed
679 Pts 750 Pts Faster octa-core speed.
+10%
Memory
OC Memory Latency
97 Pts +1% 95.7 Pts
1-Core
OC Single Core Mixed Speed
148 Pts Faster OC single-core speed.
+16%
128 Pts
2-Core
OC Dual Core Mixed Speed
287 Pts Faster OC dual-core speed.
+14%
252 Pts
4-Core
OC Quad Core Mixed Speed
523 Pts Slightly faster OC quad-core speed.
+6%
492 Pts
8-Core
OC Octa Core Mixed Speed
777 Pts 807 Pts +4%
Market Share
Based on 48,332,893 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.94 % 1.01 % Slightly higher market share.
+7%
Value
Value For Money
80.1 % 98.9 % Better value.
+24%
User Rating
UBM User Rating
82 % 94 % More popular.
+15%
Price
Price (score)
$379 $171 Much cheaper.
+55%
Age
Newest
59 Months 19 Months Much more recent.
+68%
TDP
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
+29%
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
8 threads 12 threads Much higher thread count.
+50%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4.2 GHz Much faster base frequency.
+45%
2.9 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz +5% 4.3 GHz
64-Core
OC Multi Core Mixed Speed
777 Pts 1013 Pts Much faster OC 64-core speed.
+30%
64-Core
Avg. Multi Core Mixed Speed
687 Pts 965 Pts Much faster 64-core speed.
+40%
Series
CPU Architecture
Kaby Lake Comet Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1200
Graphics
Integrated Graphics
HD 630 None
Launch Date
Launch Date
Q1'17 Q2'20
Cache
Cache
8 MB 12 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
4.50 GHz 4.30 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 8 GT/s
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR4-2666
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 2
PCI Express Revision
PCI Express Revision
3.0 3

More specs » More specs »
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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

The i5-10400F is a six-core hyperthreaded CPU from Intel’s latest Comet Lake series of desktop processors. This 65 W CPU has single core and all core boost frequencies of 4.3 GHz and 4.0 GHz, respectively. Whilst the 10400F will require a new LGA1200 motherboard, such as the Z490, Intel have guaranteed that the next generation of Rocket Lake CPUs will also be compatible with this chipset. The 10400F is aimed at mid-tier gaming PC builds, and as such, ships with a cooler but without integrated graphics. Despite being officially launched in Q2 of 2020, at the time of writing, the 10400F is still not widely available. Compared to the similarly priced Ryzen 5 3600, the 10400F’s lower memory latency gives it the lead in gaming and effective speed benchmarks. Since the Ryzen architecture creates a gaming bottleneck, it is necessary to upgrade to a higher tier, Intel CPU for better gaming performance. On the other hand comparing the i5-10400F and the i3-10100 shows that the 10100 offers comparable gaming performance for 22% less money whilst also including integrated graphics. [Jun '20 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) December 2021 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.

UserBenchmark of the month

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.

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