Intel Core i5-9400F vs Intel Core i5-10400F vs Intel Core i7-10700
Intel Core i5-9400F
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The Intel Core i5-9400F is a six-core desktop processor based on the Coffee Lake architecture introduced in October 2018 along with the flagship Intel Core i9-9900K. The processor clocks at 2.9-4.1 GHz and can process up to 6 threads simultaneously. The Intel Core i5-9400F is manufactured in the improved 14-nm process (14nm++).
Performance
Compared to the Intel Core i5-8400, the performance could only be increased slightly. Performance increases of up to 10 percent can be expected. Both processors (old and new) still do not offer hyperthreading. The performance increase therefore only adds up to small architecture improvements and a slightly higher basic and turbo clock rate. This CPU is suitable for everyday office use, which does not require large coolers due to the low waste heat. But games are also among the application areas, because in games the Intel Core i5-9400F clearly beats the Intel Core i3-9100F. Here the six cores are paying off in the meantime.
Graphics unit
The Intel Core i5-9400F is a processor without integrated graphics unit. If you value an iGPU, you should take a closer look at the Intel Core i5-9400, as it offers the entry level Intel UHD Graphics 630.
Power consumption
Intel puts the Thermal Design Power (TDP) at 65 watts. This means there is no need for large cooling systems, which also allows installation in very compact housings.
Intel Core i5-10400F
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The Intel Core i5-10400F is a mid-range processor for desktops with six cores based on the Comet Lake architecture (CML-S, 4th generation of Skylake). The processor clocks at between 2.9 and 4.3 GHz and can execute up to 12 threads simultaneously thanks to Hyper-Threading.
The processor is still manufactured on the old 14nm (14nm++) process.
The Comet Lake architecture is similar to Coffee Lake and offers the same features and is made with the same 14 nm process. Other than the improved clock rates, the memory controller now also supports faster DDR4-2666 RAM. More information on Comet Lake and all the models and articles on it can be found here.
Performance
The average 10400F in our database matches the Ryzen 7 4800U and also the Core i7-9700K in multi-thread performance to be a more than decent mid-range option for your gaming rig, as of early 2022.
Graphics
The CPUs with an "F" suffix do not feature an integrated graphics adapter. The Intel UHD Graphics 630 iGPU is deactivated.
Power consumption
This Core i5 has a default TDP (also known as the long-term power limit) of 65 W which is in line with most desktop chips.
The i5-10400F is built with one of the old 14 nm Intel processes for poor, as of mid 2023, energy efficiency.
Intel Core i7-10700
► remove from comparisonThe Intel Core i7-10700 is a high-end desktop CPU based on the Comet Lake architecture. The CPU offers 8 cores and 16 threads clocked at 2.9 - 4.8 GHz. All cores can run at up to 4.6 GHz.
Compared to the older Core i7-9700, the 10700 now enables HyperThreading and therefore in some applications a nice performance boost. The single core performance is quite similar.
The chip is manufactured on 14nm++ process at Intel. The TDP is rated at 65 Watt (PL1) but the PL2 is set to 224 Watt for short term boosts (up to 28 seconds).
Model | Intel Core i5-9400F | Intel Core i5-10400F | Intel Core i7-10700 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Coffee Lake-R | Comet Lake | Comet Lake | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Series | Intel Coffee Lake | Intel Comet Lake | Intel Comet Lake | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Comet Lake Comet Lake |
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Clock | 2900 - 4100 MHz | 2900 - 4300 MHz | 2900 - 4800 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
L1 Cache | 384 KB | 384 KB | 512 KB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
L2 Cache | 1.5 MB | 1.5 MB | 2 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
L3 Cache | 9 MB | 12 MB | 16 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cores / Threads | 6 / 6 | 6 / 12 | 8 / 16 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
TDP | 65 Watt | 65 Watt | 65 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Technology | 14 nm | 14 nm | 14 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voltage | 100 V | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Die Size | 149 mm2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Socket | LGA 1151-2 | LGA1200 | LGA1200 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | Dual-Channel DDR4-2666 Memory Controller, AVX, AVX2, AES-NI, TSX, Quick Sync, Virtualization | DDR4-2666 RAM, PCIe 3, 8 GT/s bus, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, AVX2, FMA3 | DDR4-2933 RAM, PCIe 3, 8 GT/s bus, vPro, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, AVX2, FMA3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
$182 U.S. | $155 U.S. | $340 U.S. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Announced | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
max. Temp. | 100 °C | 100 °C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | ark.intel.com | ark.intel.com | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
iGPU | Intel UHD Graphics 630 (350 - 1200 MHz) |
Benchmarks
Average Benchmarks Intel Core i5-9400F → 100% n=33
Average Benchmarks Intel Core i5-10400F → 115% n=33
Average Benchmarks Intel Core i7-10700 → 130% n=33

* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation