AMD Ryzen Threadripper PRO 3975WX vs Intel Core i5-10400F Comparison

Head-to-Head Benchmarks

The head-to-head data is remarkably one-sided. The AMD Ryzen Threadripper PRO 3975WX wins every single compared benchmark, eight out of eight. There is no test in the comparison where the Intel Core i5-10400F comes out ahead.

The most dramatic margins appear in the Cinebench suite. In Cinebench R23 multi-core, the Threadripper PRO scores 52,895 against the i5-10400F's 10,283, a delta of -80.6%. That same percentage gap, -80.6%, repeats across Cinebench R15 multi-core (5,331 versus 1,036), R15 single-core (752 versus 146), R20 multi-core (22,215 versus 4,318), R20 single-core (3,136 versus 609), and R23 single-core (7,467 versus 1,451). The uniformity of that delta suggests the underlying performance ratio is consistent across the Cinebench workloads.

The gap narrows considerably in Geekbench. In Geekbench multi-core, the AMD part scores 16,922 against Intel's 6,257, a -63% delta. That is still a decisive win, but the single-core result is the closest comparison of the entire set. The Threadripper PRO posts 1,570 in Geekbench single-core versus 1,420 for the i5-10400F, a -9.6% delta. The Intel chip loses but remains within striking distance in lightly threaded single-core work. The data indicates the Core i5-10400F is not competitive with the Threadripper PRO in any measured workload here, but its single-thread deficit is far smaller than its multi-thread deficit.

Where Each One Wins

Based on the recorded benchmarks, the AMD Ryzen Threadripper PRO 3975WX wins every category tested. There is no benchmark category where the Intel Core i5-10400F claims a victory. The Threadripper PRO's advantages are largest in multi-threaded rendering workloads. Its Cinebench R23 multi-core score of 52,895 is more than five times the Intel part's 10,283. The same pattern holds in Geekbench multi-core, where the AMD chip's 16,922 nearly triples the Intel chip's 6,257. The result is clear for users running heavily threaded productivity, rendering, or simulation workloads: the Threadripper PRO is the dominant choice.

The Intel Core i5-10400F does have one relative strength in this comparison: single-thread performance. Its Geekbench single-core score of 1,420 trails the AMD part's 1,570 by only 9.6%, which is the smallest gap in the entire head-to-head set. That means for workloads that depend on single-thread responsiveness, the i5-10400F is not nearly as far behind. However, the Cinebench single-core scores tell a different story, with the Threadripper PRO leading by the same -80.6% delta seen in multi-core. The Geekbench single-core result suggests the Intel architecture is not wholly outclassed in lightly threaded scenarios, even if the Cinebench tests disagree.

For users prioritizing raw multi-threaded throughput, the choice is unambiguous. For users whose applications are lightly threaded, the Intel part is closer but still behind in every recorded measurement. The database shows no workload category where the i5-10400F wins outright.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i5-10400F has an average benchmark score of 14,185, while the AMD Ryzen Threadripper PRO 3975WX averages 13,786. Despite losing every head-to-head benchmark, the Intel part edges out the AMD part in the broader database average.

Q: How much faster is the Threadripper PRO in Cinebench R23 multi-core?

A: The AMD Ryzen Threadripper PRO 3975WX scores 52,895 in Cinebench R23 multi-core versus 10,283 for the Intel Core i5-10400F, a delta of -80.6%. The AMD processor's score is roughly five times higher.

Q: Is the Intel Core i5-10400F competitive in single-threaded workloads?

A: In Geekbench single-core, the i5-10400F scores 1,420 against the Threadripper PRO's 1,570, a gap of only -9.6%. However, in Cinebench R23 single-core, the gap is -80.6% (1,451 versus 7,467), so results vary by benchmark.

Q: What is the memory channel configuration difference?

A: The Intel Core i5-10400F uses dual-channel memory with a maximum bandwidth of 42.7 GB/s. The AMD Ryzen Threadripper PRO 3975WX uses eight-channel memory with a maximum bandwidth of 204.8 GB/s.

Q: Which processor supports ECC memory?

A: The AMD Ryzen Threadripper PRO 3975WX supports ECC memory. The Intel Core i5-10400F does not.

Q: How do the two processors compare in terms of the CPU percentile ranking?

A: Both processors sit at the 68th percentile versus all CPUs in the database. The Intel Core i5-10400F has an average benchmark score of 14,185, while the AMD Ryzen Threadripper PRO 3975WX averages 13,786.

Specification Differences

The two processors differ across nearly every major specification. The Intel Core i5-10400F has 6 cores and 12 threads, while the AMD Ryzen Threadripper PRO 3975WX has 32 cores and 64 threads. Base clocks differ: the Intel part runs at 2.90 GHz, the AMD part at 3.50 GHz. Boost clocks are closer, with Intel at 4.30 GHz and AMD at 4.20 GHz. The TDP gap is substantial: 65 watts for the Intel chip versus 280 watts for the AMD chip.

The cache configurations diverge sharply. The Intel Core i5-10400F has 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 12 MB of shared L3 cache. The AMD Ryzen Threadripper PRO 3975WX has 64 KB of L1 cache per core, 512 KB of L2 cache per core, and 128 MB of L3 cache. The AMD part's L3 cache is more than ten times larger.

Memory support differs in channel count and bandwidth. The Intel chip supports dual-channel DDR4 with 42.7 GB/s of bandwidth. The AMD chip supports eight-channel DDR4 with 204.8 GB/s of bandwidth. ECC memory is supported only on the AMD part. PCIe connectivity also differs: the Intel chip provides Gen 3 with 16 lanes (CPU only), while the AMD chip provides Gen 4 with 128 lanes (CPU only).

The sockets are incompatible: Intel Socket 1200 for the Core i5-10400F versus AMD Socket WRX8 for the Threadripper PRO. The launch MSRP for the AMD Ryzen Threadripper PRO 3975WX is $2749. The Intel part has no listed launch MSRP in the database. The release dates differ as well: the Intel chip launched on 2020-04-29, the AMD chip on 2020-07-13. Neither processor has an unlocked multiplier.

Architecture Differences

The architectural divide is generational and fundamental. The Intel Core i5-10400F uses the Comet Lake architecture on a 14 nm process node, fabricated by Intel. The AMD Ryzen Threadripper PRO 3975WX uses the Zen 2 architecture (codename Castle Peak) on a 7 nm process node, fabricated by TSMC. The process node difference is significant: 14 nm versus 7 nm.

The AMD part's transistor count is listed at 15,200 million, with a die size of 4x 74 mm². The Intel part has no transistor count or die size listed in the database. The AMD part's multi-die design, indicated by the 4x die configuration, is a hallmark of the Zen 2 architecture. The Intel Comet Lake part is a monolithic design.

The cache hierarchy reflects the architectural differences. Both parts share the same per-core L1 cache size of 64 KB, but the L2 cache differs: 256 KB per core on Intel versus 512 KB per core on AMD. The L3 cache is the most striking difference, with 12 MB shared on the Intel part versus 128 MB on the AMD part. The AMD part's larger L3 cache is consistent with its chiplet-based Zen 2 design.

The AMD Ryzen Threadripper PRO 3975WX belongs to the 3000 series, with the generation listed as Ryzen Threadripper (Zen 2 (Castle Peak)). The Intel Core i5-10400F belongs to the Core 10th Gen series, with the generation listed as Core i5 (Comet Lake). Both are desktop market segment parts, and both are listed as Active in production status. Neither has integrated graphics listed. The part numbers confirm the distinct product lines: SRH3DSRH79 for Intel, 100-000000086100-100000086WOF for AMD. The database places both at the 68th percentile versus all CPUs, which shows that despite the massive head-to-head gaps, the two chips occupy similar positions in the broader field of all processors.