IntelBX80677I77700
IntelBX8070110400F

4 Cores, 8 Threads @3.6GHz, Kaby Lake.
Release date: Q1 2017.

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

Real World Speed
Performance profile from 409,743 user samples
256,717 User Benchmarks
Best Bench: 84% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 63% Base clock 3.6 GHz, turbo 4 GHz (avg)
Poor: 63% Great: 84%
SPEED RANK: 298th / 1456
Gaming
Gaming 76%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 63%
Destroyer
153,026 User Benchmarks
Best Bench: 92% Base clock 2.9 GHz, turbo 4 GHz (avg)
Worst Bench: 75% Base clock 2.9 GHz, turbo 4 GHz (avg)
Poor: 75% Great: 92%
SPEED RANK: 185th / 1456
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 76%
Battleship
Effective Speed
Effective CPU Speed
76.2 % 85.2 % Faster effective speed.
+12%
Memory
Avg. Memory Latency
84 Pts 89.6 Pts Slightly lower memory latency.
+7%
1-Core
Avg. Single Core Speed
110 Pts 118 Pts Slightly faster single-core speed.
+7%
2-Core
Avg. Dual Core Speed
208 Pts 230 Pts Faster dual-core speed.
+11%
4-Core
Avg. Quad Core Speed
371 Pts 435 Pts Faster quad-core speed.
+17%
8-Core
Avg. Octa Core Speed
556 Pts 715 Pts Faster octa-core speed.
+29%
Memory
OC Memory Latency
93.3 Pts 95.9 Pts +3%
1-Core
OC Single Core Speed
122 Pts 124 Pts +2%
2-Core
OC Dual Core Speed
237 Pts 246 Pts +4%
4-Core
OC Quad Core Speed
414 Pts 485 Pts Faster OC quad-core speed.
+17%
8-Core
OC Octa Core Speed
633 Pts 778 Pts Faster OC octa-core speed.
+23%
Market Share
Based on 68,097,507 CPUs tested
Market Share
Market Share (trailing 30 days)
0.87 % 1.44 % Much higher market share.
+66%
Value
Value For Money
87.7 % 114 % Much better value.
+30%
User Rating
UBM User Rating
61 % 89 % Much more popular.
+46%
Price
Price (score)
$167 $95 Much cheaper.
+43%
Age
Newest
89 Months 49 Months Much more recent.
+45%
TDP
Thermal Design Power (TDP)
65 Watts 65 Watts
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
3.6 GHz Faster base frequency.
+24%
2.9 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.3 GHz +2%
64-Core
OC Multi Core Speed
640 Pts 978 Pts Much faster OC 64-core speed.
+53%
64-Core
Avg. Multi Core Speed
572 Pts 903 Pts Much faster 64-core speed.
+58%
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
4.20 GHz 4.30 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 8 GT/s
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) 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
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 3

More specs » More specs »
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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]

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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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