AMD EPYC 7643 vs Intel Core 5 315 Comparison

Head-to-Head Benchmarks

The benchmark data presents an exceptionally one-sided comparison. Across every recorded Cinebench test, the AMD EPYC 7643 dominates the Intel Core 5 315 with a consistent performance margin of roughly 398% in the older R15 and R20 suites, and 398% in R23. This is not a narrow victory; it is a categorical sweep.

Starting with Cinebench R15, the EPYC 7643 scores 6515 points in the multicore test against the Core 5 315’s 1308 points. That is a delta of 398.1% in favor of the AMD part. The single-core R15 result tells the same story: 919 points for the EPYC versus 184 for the Intel chip, a 399.5% advantage. These are the largest deltas recorded in this comparison, indicating that even on a per-thread basis, the server processor holds a commanding lead.

Moving to Cinebench R20, the pattern holds. The EPYC 7643 posts 27149 multicore points, while the Core 5 315 manages 5452. The delta is 398% exactly. In the single-core R20 test, the EPYC scores 3832 against 769 for Intel, a 398.3% difference. The consistency of these margins, hovering between 398% and 399.5%, suggests a fundamental throughput advantage rather than a workload-specific quirk.

Cinebench R23, the most recent of the three suites, reinforces the result. The EPYC 7643 delivers 64642 multicore points versus 12981 for the Core 5 315, a 398% delta. The single-core R23 score is 9126 for AMD and 1832 for Intel, a 398.1% gap. The database records 6 wins for the EPYC 7643 and 0 for the Intel Core 5 315 across all head-to-head benchmarks. There is no test in this dataset where the Intel part narrows the gap meaningfully.

The average benchmark score places the EPYC 7643 at 18697, with an average score percentile of 73 among all CPUs. The Intel Core 5 315 sits at 18188 average, with a percentile of 72. Despite the massive Cinebench deltas, the average scores are surprisingly close, differing by only about 2.8%. This occurs because the Intel part has additional PassMark results in the database, which are not part of the head-to-head comparison, and those scores pull its average upward. The Cinebench suite alone, however, shows no such convergence.

Where Each One Wins

The AMD EPYC 7643 wins exclusively in every benchmark category recorded in the head-to-head data. All six Cinebench tests, spanning multicore and single-core variants across R15, R20, and R23, go to the EPYC. The recorded data shows no test where the Intel Core 5 315 comes out ahead.

For use-case analysis, the EPYC 7643 is positioned for server and workstation workloads. Its 48 cores and 96 threads, combined with a 225 W TDP, indicate sustained multi-threaded performance. The Cinebench multicore scores, ranging from 6515 in R15 to 64642 in R23, reflect an architecture designed for heavy parallel processing. The single-core scores, while also dominant in this comparison, are less relevant to its primary market.

The Intel Core 5 315, by contrast, is a mobile part with 6 cores and 6 threads, a 15 W TDP, and integrated Intel Xe3 Graphics. Its Cinebench R23 multicore score of 12981 is respectable for a low-power chip, but it cannot compete with the EPYC’s 64642. The data shows the Intel part has strengths in other areas not covered by the head-to-head suite. Its PassMark results include data compression at 146143, floating point math at 42441, and integer math at 31690. These scores do not appear in the head-to-head comparison, but they indicate the Core 5 315 handles specific workloads with relative efficiency for its class.

The nearest rivals for each part clarify their market positions. The EPYC 7643’s average score of 18697 is within 0.1% of the Intel Core i5-12400 and within 1% of the Intel Core i3-14100F. The Core 5 315’s average of 18188 is essentially tied with the AMD EPYC 9274F, Intel Core i7-9700, and Intel Core i7-1365U, all within 0.1%. These comparisons suggest the two CPUs occupy different performance tiers, despite their similar average scores.

FAQ

Q: Which processor has the higher multicore performance in Cinebench R23?

A: The AMD EPYC 7643 scores 64642 points in Cinebench R23 multicore, while the Intel Core 5 315 scores 12981 points. The EPYC leads by 398%.

Q: How do the single-core scores compare between the two?

A: In Cinebench R23 single-core, the EPYC 7643 scores 9126 against the Core 5 315’s 1832, a 398.1% advantage for AMD. The same pattern appears in R15 (919 vs 184) and R20 (3832 vs 769).

Q: What are the core and thread counts for each processor?

A: The AMD EPYC 7643 has 48 cores and 96 threads. The Intel Core 5 315 has 6 cores and 6 threads.

Q: Which processor has a higher average benchmark score?

A: The EPYC 7643 has an average benchmark score of 18697, placing it in the 73rd percentile of all CPUs. The Core 5 315 has an average score of 18188, placing it in the 72nd percentile.

Q: Does the Intel Core 5 315 win any head-to-head benchmark?

A: No. The database records 6 wins for the AMD EPYC 7643 and 0 wins for the Intel Core 5 315 across all head-to-head Cinebench tests.

Q: What is the launch MSRP for each processor?

A: The AMD EPYC 7643 has a launch MSRP of $4995. The Intel Core 5 315 has a launch MSRP of $340.

Specification Differences

The two processors differ across nearly every specification field. The AMD EPYC 7643 uses the AMD Socket SP3, while the Intel Core 5 315 uses Intel BGA 1516. The EPYC has 48 cores and 96 threads; the Core 5 has 6 cores and 6 threads. Base clocks differ substantially: the EPYC runs at 2.30 GHz, while the Core 5 runs at 1.50 GHz. Boost clocks reverse the order, with the EPYC at 3.60 GHz and the Core 5 at 4.40 GHz.

Thermal design power shows a stark contrast. The EPYC 7643 has a TDP of 225 W, while the Core 5 315 has a TDP of 15 W. Memory support differs in type and width: the EPYC supports DDR4 over an eight-channel bus with 204.8 GB/s bandwidth, while the Core 5 supports DDR5 and LPDDR5X over a single-channel bus with 59.7 GB/s bandwidth. ECC memory is supported on the EPYC but not on the Core 5.

PCIe lane counts vary significantly. The EPYC provides 128 Gen 4 lanes (CPU only), while the Core 5 provides 6 Gen 4 lanes (CPU only). The Intel part includes integrated Intel Xe3 Graphics (2 Xe), whereas the EPYC has no integrated graphics. Market segments differ: the EPYC targets server/workstation, and the Core 5 targets mobile. Release dates also diverge: the EPYC launched on 2021-03-14, and the Core 5 on 2026-04-15.

The cache structures are not directly comparable. The EPYC has 64 KB L1 per core, 512 KB L2 per core, and 256 MB shared L3. The Core 5 has 192 KB L1 total, 2.5 MB L2 total, and 6 MB shared L3. The EPYC’s die size is listed as 8x 81 mm² with 33,200 million transistors, while the Core 5 has no listed die size or transistor count.

Architecture Differences

The architectural divide is fundamental. The AMD EPYC 7643 is built on Zen 3 architecture, codenamed Milan, within the EPYC 7003 series. Its generation is listed as EPYC (Zen 3 (Milan)). The Intel Core 5 315 uses Intel’s Wildcat Lake codename, with a generation of Core 5 (Wildcat Lake). The EPYC’s architecture field is explicitly Zen 3, while the Core 5’s architecture field is null, leaving the codename and generation as the available descriptors.

Process nodes differ by foundry and size. The EPYC 7643 uses a 7 nm process from TSMC. The Core 5 315 uses a 3 nm process from Intel. This gives the Intel part a density advantage on paper, but the benchmark results do not reflect that in Cinebench performance. The EPYC’s 7 nm process is paired with a multi-die design: 8x 81 mm² dies containing 33,200 million transistors in total. The Core 5 has no listed transistor or die size data.

Cache architecture reflects the divergent design philosophies. The EPYC’s per-core L1 and L2 caches (64 KB and 512 KB per core) scale with its 48-core layout, and its 256 MB shared L3 is enormous by comparison. The Core 5’s cache is modest: 192 KB L1 total, 2.5 MB L2 total, and 6 MB shared L3. The L3 difference alone is over 40x in favor of the EPYC.

Memory architecture reinforces the server versus mobile split. The EPYC supports DDR4 with eight channels and 204.8 GB/s bandwidth, designed for high-throughput data center workloads. The Core 5 supports DDR5 and LPDDR5X with a single channel and 59.7 GB/s bandwidth, optimized for power efficiency in portable devices. The Core 5 also includes integrated Intel Xe3 Graphics, a feature absent from the EPYC, which relies on discrete or external graphics solutions.

The production status for both is listed as Active. The EPYC 7643 is not multiplier unlocked, and the Core 5 315 is also not multiplier unlocked. The part numbers are distinct: 100-000000326100-100000326WOF for AMD and SAEFC for Intel. The EPYC’s market segment is Server/Workstation, while the Core 5’s is Mobile, which explains the extensive specification differences across the board.