intel-core-i5-6400 Intel Core i5-6400
Intel Core i5-6400 VS. Intel Core i5-7400
intel-core-i5-7400 Intel Core i5-7400

Intel Core i5-6400 vs. Intel Core i5-7400

September 11, 2019
                         
Bottom line: Which one is better?

A review of i5-6400 vs i5-7400 confirms that actually Intel Core i5-7400 is a better device as it has 11.11% faster CPU speed, 267MHz higher RAM speed, 128KB bigger L1 cache, 0.2GHz higher turbo clock speed, 0.05MB/core more L2 cache per core, 839 higher PassMark result, 4.3GB/s more memory bandwidth and 109 higher PassMark result (single).

GENERAL INFO

GPU clock speed; Intel Core i5-6400 has 350MHz as well as Intel Core i5-7400

DirectX version; both Intel Core i5-6400 and Intel Core i5-7400 have 12.

Thermal Design Power (TDP); each device has 65W.

Supports 64-BIT; both devices support 64_BIT.

Semiconductor size; both devices have 14mm each.

GPU turbo; Intel Core i5-6400 has 950MHz while Intel Core i5-7400 has 1000MHz.

Bottom Line general info
Intel Core i5-7400 takes a slight win with a higher GPU turbo.
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PERFORMANCE

CPU speed; Intel Core i5-6400 has 4 × 2.7GHz while Intel Core i5-7400 has 4 × 3GHz.

L2 cache; both devices have 1MB each.

L3 cache; both Intel Core i5-6400 and Intel Core i5-7400 have 6MB each.

CPU threads; both have 4 CPU threads each.

L1 cache; Intel Core i5-6400 has 128KB whereas Intel Core i5-7400 has 256KB.

L2 core; Intel Core i5-6400 has 0.2MB/core whereas Intel Core i5-7400 has 0.25MB/core.

Bottom Line performance
Intel Core i5-7400 is better in performance as it has high CPU speed, L1 cache and L2 core.
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MEMORY

RAM speed; Intel Core i5-6400 has 2133MHz while Intel core i5-7400 has 2400MHz.

Maximum memory bandwidth; Intel Core i5-6400 has 34.1GB/s whereas Intel Core i5-7400 has 38.4GB/s

Memory channels; both Intel Core i5-6400 and Intel Core i5-7400 have 2 memory channels each.

Maximum memory size; each has a memory size of 64GB.

Bus transfer rate; each of the devices has 8GT/s.

Bottom Line memory
Intel Core i5-7400 has a better memory compared to Intel Core i5-6400.
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KEY FEATURES

Both Intel core i5-6400 and Intel Core i5-7400 have dynamic frequency scaling, AES, supports hardware-assisted virtualization and have AVX. Intel Core i5-7400 has tri-gate transistors.

Bottom Line key features
Intel Core i5-7400 wins in terms of key features as it has tri-gate transistors unlike Intel Core i5-6400.
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BENCHMARKS

PassMark result; Intel Core i5-6400 has 6554 whereas Intel Core i5-7400 has 7393.

PassMark result (single); Intel Core i5-6400 has 1825 whereas Intel Core i5-7400 has 1934.

Bottom Line benchmarks
Intel Core i5-7400 is a better device in terms of benchmarks.
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Conclusion

After full review of both Intel Core i5-6400 and Intel Core i5-7400, we conclude that with a faster CPU speed, higher RAM speed, bigger L1 cache, higher turbo clock speed, more L2 cache per core, higher PassMark results, more memory bandwidth and higher PassMark result (single), Intel Core i5-7400 is a better device.

$ 197.81