AMD EPYC 4124P vs AMD Ryzen 5 3600X Comparison

The AMD EPYC 4124P and AMD Ryzen 5 3600X represent two different philosophies that land in nearly the same place on the performance chart: a modern, efficiency-focused server part with very high single-thread speed, and an older desktop chip with more cores. The database shows the Ryzen 5 3600X winning the overall head-to-head with 12 benchmark wins against 5 for the EPYC 4124P, yet the average benchmark scores sit just 5 percent apart (23167 versus 21992), and the percentile placement differs by a single point, 76 versus 75. The story is not which chip is faster overall, it is where each one is fast.

FAQ

Q: Which CPU wins more benchmarks overall?

A: The Ryzen 5 3600X. It takes 12 of the 17 head-to-head comparisons in the database, against 5 wins for the EPYC 4124P. However, most of the Ryzen wins are narrow: every Cinebench test and both multi-thread PassMark tests are decided by roughly 1 percent or less.

Q: Is the EPYC 4124P faster in single-threaded work?

A: Yes, decisively in one key test. The EPYC 4124P scores 3897 in PassMark single-thread versus 2649 for the Ryzen 5 3600X, a 47.1 percent lead. In Cinebench single-core tests, though, the two are effectively tied, with the Ryzen ahead by about 1 percent (2178 versus 2154 in R23, 914 versus 904 in R20).

Q: Do these CPUs use the same socket?

A: No. The EPYC 4124P uses AMD Socket AM5 and DDR5 memory, while the Ryzen 5 3600X uses AMD Socket AM4 and DDR4 memory. They require different platforms entirely.

Q: Which CPU supports ECC memory?

A: The EPYC 4124P. ECC is enabled on it as part of its server/workstation positioning. The Ryzen 5 3600X does not have ECC support listed in the database.

Q: How do their average scores compare to other CPUs in the database?

A: The EPYC 4124P's average score of 23167 puts it within a fraction of a percent of the Intel Core Ultra 9 288V (23219, -0.2 percent), Intel Core i9-11900F (23254, -0.4 percent), and AMD Ryzen 7 5800H (23277, -0.5 percent). The Ryzen 5 3600X's 21992 is essentially tied with the Intel Core i7-11700F (21988, 0 percent).

Q: Which CPU has integrated graphics?

A: The EPYC 4124P, with Radeon Graphics integrated. The Ryzen 5 3600X has no integrated graphics listed and requires a discrete GPU.

Architecture Differences

The generational gap is the root of everything here. The EPYC 4124P is a Zen 4 (Raphael) design on TSMC's 5 nm process, carrying 6,570 million transistors on a 71 mm² die. The Ryzen 5 3600X is a Zen 2 (Matisse) design on TSMC's 7 nm process, with 3,800 million transistors on a slightly larger 74 mm² die. The newer node packs substantially more transistors into a smaller area, and that density translates directly into the EPYC part's frequency and per-clock advantages.

Core counts run the other way. The EPYC 4124P offers 4 cores and 8 threads; the Ryzen 5 3600X offers 6 cores and 12 threads. Both share the same 3.80 GHz base clock, but the boost clocks diverge sharply: 5.10 GHz for the EPYC 4124P versus 4.40 GHz for the Ryzen 5 3600X. That 700 MHz boost advantage, combined with two architecture generations of IPC gains, is what powers the EPYC's single-thread results despite having fewer cores.

Cache configurations split the difference. Both have 64 KB of L1 per core and 32 MB of shared L3, but the EPYC 4124P doubles L2 to 1 MB per core versus 512 KB per core on the Ryzen. Platform features also favor the newer chip: DDR5 on a dual-channel bus with 83.2 GB/s of bandwidth (versus DDR4 at 51.2 GB/s), PCIe Gen 5 with 28 CPU lanes (versus Gen 4), ECC support, and integrated Radeon Graphics. The Ryzen counters with an unlocked multiplier, which the EPYC 4124P lacks. TDP is 65 W for the EPYC versus 95 W for the Ryzen.

Where Each One Wins

The EPYC 4124P is the clear choice for single-threaded and per-core-bound workloads. Its 47.1 percent single-thread win in PassMark is the largest margin in the entire dataset, and it also takes integer math (5.8 percent ahead), floating point math (7.4 percent ahead), and extended instructions (1.9 percent ahead). These are the computational kernels where clock speed and modern IPC dominate, and where thread count barely matters.

The Ryzen 5 3600X owns anything that scales with threads or memory throughput. It wins encryption by 18.4 percent, prime number finding by 19.1 percent, compression by 8.6 percent, and physics by 8.3 percent. The encryption and compression results are almost certainly fed by its two extra cores and four extra threads; the prime-finding result, which is embarrassingly parallel, shows the same pattern. Physics leans the same way. Cinebench multi-core is a near-tie (roughly 1 percent to the Ryzen), meaning the EPYC's per-core strength almost, but not quite, cancels the Ryzen's core-count advantage in rendering.

Specification Differences

The specifications where these two differ:

• Series: EPYC 4004 series versus 3000 series
• Cores/Threads: 4/8 versus 6/12
• Boost clock: 5.10 GHz versus 4.40 GHz (base is 3.80 GHz on both)
• TDP: 65 W versus 95 W
• Socket: AM5 versus AM4
• Architecture/Codename: Zen 4 (Raphael) versus Zen 2 (Matisse)
• Process node: 5 nm versus 7 nm (both TSMC)
• Transistors/Die: 6,570 million on 71 mm² versus 3,800 million on 74 mm²
• L2 cache: 1 MB per core versus 512 KB per core (L1 and L3 are identical)
• Memory: DDR5 at 83.2 GB/s versus DDR4 at 51.2 GB/s, both dual-channel
• ECC: supported versus not supported
• PCIe: Gen 5 with 28 CPU lanes versus Gen 4
• Integrated graphics: Radeon Graphics versus none
• Market segment: Server/Workstation versus Desktop
• Release date: May 2024 versus July 2019
• Launch MSRP: $149 versus $249
• Multiplier: locked versus unlocked

Head-to-Head Benchmarks

The headline number belongs to the EPYC 4124P: 3897 in PassMark single-thread against 2649 for the Ryzen 5 3600X, a 47.1 percent gap. Nothing else in the dataset comes close. The EPYC's other wins are moderate: 31518 versus 29339 in floating point math (+7.4 percent), 52855 versus 49934 in integer math (+5.8 percent), and 15049 versus 14773 in extended instructions (+1.9 percent).

The Ryzen's biggest wins are all in parallel or memory-heavy tests. Prime number finding lands at 110 versus 89, a 19.1 percent margin, and encryption is 14255 versus 11630, 18.4 percent ahead. Compression goes to the Ryzen at 224318 versus 204926 (-8.6 percent from the EPYC's perspective), and physics at 1186 versus 1087 (-8.3 percent).

The rendering and general multi-thread tests are where the two chips are nearly indistinguishable. Cinebench R23 multi-core: 15430 to 15430's rival 15264, a 1.1 percent Ryzen edge. R20 multi-core: 6480 versus 6410, same margin. R15 multi-core: 1555 versus 1538. Even single-core Cinebench goes narrowly to the Ryzen, 2178 versus 2178's opponent 2154 in R23 and 914 versus 904 in R20, both around 1 percent. PassMark multithread is a statistical dead heat at 18154 versus 18139, and string sorting differs by just 0.3 percent (24343 versus 24259). The database shows the EPYC sitting at the 76th percentile against all CPUs and the Ryzen at the 75th, which matches the near-parity the individual tests describe.

The Verdict

The data supports a clean split. Pick the EPYC 4124P when single-threaded responsiveness, integer and floating point throughput, memory bandwidth, ECC, or PCIe Gen 5 connectivity drive the workload: its 47.1 percent single-thread lead, its five PassMark computational wins, DDR5 at 83.2 GB/s, and 28 Gen 5 lanes make it the platform-forward choice, and it does all of this at a lower 65 W TDP with integrated graphics as a fallback.

Pick the Ryzen 5 3600X when the workload scales across threads. Six cores and twelve threads deliver the largest wins in the dataset's parallel tests, encryption at 18.4 percent and prime finding at 19.1 percent, plus solid margins in compression and physics, and the unlocked multiplier offers tuning headroom the EPYC does not. For users already on AM4 with DDR4, the data indicates the Ryzen remains competitive with a chip five years its junior, losing the average-score comparison by only about 5 percent while winning the majority of individual tests. For a new build prioritizing per-core speed, the EPYC 4124P is the stronger performer.