AMD EPYC 4124P vs AMD Ryzen 5 2600X Comparison

The AMD EPYC 4124P and AMD Ryzen 5 2600X represent two distinct eras of AMD silicon, and the benchmark data reveals a decisive generational shift. While both processors occupy the 76th percentile among all CPUs, their average benchmark scores are remarkably close — 23,167 for the EPYC versus 22,823 for the Ryzen — yet the nature of their performance is fundamentally different. The EPYC 4124P, a 2024 server/workstation part built on Zen 4, wins 12 of the 13 head-to-head comparisons, often by substantial margins, while the 2018 desktop Ryzen 5 2600X manages a single victory in data encryption. This is not a contest of equal measure; it is a study in how architecture, memory support, and process technology reshape even the most basic multi-core workloads.

FAQ

Q: Which processor has the higher boost clock, and what is the difference?

A: The AMD EPYC 4124P boosts to 5.10 GHz, while the AMD Ryzen 5 2600X reaches 4.25 GHz. That is a 0.85 GHz advantage for the EPYC part.

Q: How do the two chips compare in terms of physical core counts?

A: The Ryzen 5 2600X has 6 cores and 12 threads, whereas the EPYC 4124P has only 4 cores and 8 threads. Despite having fewer cores, the EPYC wins the majority of multi-threaded benchmarks.

Q: What is the single biggest performance margin in the head-to-head results?

A: The EPYC 4124P leads by 134.2% in the PassMark find prime numbers test, scoring 89 versus the Ryzen's 38. This is the largest delta recorded in the data.

Q: Does the Ryzen 5 2600X win any benchmark against the EPYC 4124P?

A: Yes, the Ryzen 5 2600X wins the PassMark data encryption test, scoring 13,133 against the EPYC's 11,630, a margin of 11.4% in favor of the older chip.

Q: Which processor supports faster memory technology?

A: The EPYC 4124P supports DDR5 memory, while the Ryzen 5 2600X is limited to DDR4. The EPYC's memory bandwidth is listed at 83.2 GB/s compared to 46.9 GB/s for the Ryzen.

Q: Are both processors currently in production?

A: Yes, both the AMD EPYC 4124P and the AMD Ryzen 5 2600X are listed as having an "Active" production status, despite the Ryzen being released in 2018.

Architecture Differences

The architectural chasm between these two chips is vast. The EPYC 4124P is built on the Zen 4 architecture using a 5 nm process at TSMC, packing 6,570 million transistors into a 71 mm² die. By contrast, the Ryzen 5 2600X uses the older Zen+ architecture on a 12 nm process at GlobalFoundries, with 4,800 million transistors spread across a much larger 213 mm² die. The process node advantage alone explains a significant portion of the performance gap — the EPYC achieves far more with fewer physical cores and a substantially smaller silicon footprint.

Cache configurations further differentiate the two. The EPYC 4124P allocates 64 KB of L1 and 1 MB of L2 per core, with a shared 32 MB L3 cache. The Ryzen 5 2600X offers a larger 96 KB L1 per core but only 512 KB of L2 per core, paired with a smaller 16 MB shared L3. The EPYC's larger L3 cache, combined with its higher per-core L2, gives it a distinct advantage in workloads that benefit from data locality and rapid access to shared data.

Memory architecture is another point of divergence. The EPYC 4124P supports DDR5 with dual-channel memory and ECC capability, while the Ryzen 5 2600X uses DDR4 without ECC support. The EPYC's memory bandwidth is 83.2 GB/s, nearly double the Ryzen's 46.9 GB/s. This bandwidth advantage likely contributes to the EPYC's wins in memory-intensive tasks like random string sorting and data compression, where the Ryzen's older memory subsystem becomes a bottleneck.

The EPYC also brings integrated Radeon Graphics, whereas the Ryzen 5 2600X has no integrated graphics. PCIe support differs as well: the EPYC offers Gen 5 with 28 lanes, while the Ryzen provides Gen 3 with 16 lanes. The EPYC's socket is AM5 versus the Ryzen's AM4, and the EPYC's multiplier is locked while the Ryzen 5 2600X's is unlocked. Finally, the EPYC is a 65 W part, significantly more power-efficient than the Ryzen's 95 W TDP, despite delivering far higher clock speeds.

Head-to-Head Benchmarks

The benchmark data tells a story of overwhelming EPYC dominance, but the margins vary widely by workload type. In Cinebench R15 multi-core, the EPYC scores 1,538 against the Ryzen's 1,341, a 14.7% lead. This is notable because the Ryzen has 6 cores and 12 threads versus the EPYC's 4 cores and 8 threads — the EPYC's architectural efficiency more than compensates for its two-core deficit. The single-core Cinebench R15 result is even more lopsided: the EPYC scores 216 versus 163, a 32.5% advantage that underscores the Zen 4 clock speed and IPC superiority.

The gap widens considerably in PassMark tests. In single-thread performance, the EPYC scores 3,897 against 2,381, a 63.7% lead. The floating point math test shows a 29.9% advantage for the EPYC (31,518 versus 24,270), and the integer math test reveals an 11.6% win (52,855 versus 47,377). The extended instructions test is where the EPYC truly shines: 15,049 versus 7,581, a massive 98.5% delta that indicates the Zen 4 architecture's SIMD and vector processing capabilities are far ahead of the older Zen+ design.

The physics test shows a 56.4% EPYC advantage (1,087 versus 695), and the multithread score is 30.6% higher for the EPYC (18,139 versus 13,893). Even in tasks that might favor the Ryzen's extra cores, the EPYC holds its ground. The find prime numbers test is the most dramatic: the EPYC scores 89 versus 38, a 134.2% difference that suggests the newer architecture handles complex integer algorithms far more efficiently. Data compression and random string sorting are closer, with the EPYC winning by 3.1% (204,926 versus 198,785) and 5.9% (24,259 versus 22,911) respectively, but the direction of travel is consistent.

The sole Ryzen victory comes in data encryption, where it scores 13,133 against the EPYC's 11,630, an 11.4% margin. This isolated win suggests the Ryzen's older architecture may have a specific hardware advantage for certain cryptographic operations, or that the benchmark favors its particular instruction set implementation. It is a reminder that even a generational gap does not guarantee victory in every specialized workload.

Specification Differences

The two processors differ across nearly every specification field. The EPYC 4124P has 4 cores and 8 threads, while the Ryzen 5 2600X has 6 cores and 12 threads. Base clocks are 3.80 GHz for the EPYC versus 3.60 GHz for the Ryzen, and boost clocks are 5.10 GHz versus 4.25 GHz. TDP differs by 30 W: 65 W for the EPYC, 95 W for the Ryzen. The EPYC uses Socket AM5, the Ryzen uses AM4. Process nodes are 5 nm versus 12 nm, and foundries are TSMC versus GlobalFoundries. Transistor counts are 6,570 million versus 4,800 million, and die sizes are 71 mm² versus 213 mm².

Cache hierarchies differ in L1 (64 KB vs 96 KB per core), L2 (1 MB vs 512 KB per core), and L3 (32 MB vs 16 MB shared). Memory support is DDR5 versus DDR4, with bandwidths of 83.2 GB/s versus 46.9 GB/s. ECC memory support is present only on the EPYC. PCIe generation and lanes are Gen 5 with 28 lanes versus Gen 3 with 16 lanes. The EPYC includes integrated Radeon Graphics; the Ryzen has none. The EPYC's multiplier is locked, the Ryzen's is unlocked. Release dates are 2024-05-20 versus 2018-04-18, and launch MSRP is $149 for the EPYC and $229 for the Ryzen. The EPYC targets the Server/Workstation segment, the Ryzen targets Desktop.

The Verdict

The data points to a clear conclusion: the AMD EPYC 4124P is the superior processor in nearly every measurable way, despite having fewer cores. Its wins in 12 of 13 benchmarks, including dramatic margins of 134.2% in prime number finding and 98.5% in extended instructions, demonstrate that the Zen 4 architecture's per-core efficiency and advanced memory subsystem overwhelm the Ryzen 5 2600X's core count advantage. The EPYC's higher boost clock (5.10 GHz versus 4.25 GHz), larger L3 cache (32 MB versus 16 MB), and double memory bandwidth (83.2 GB/s versus 46.9 GB/s) all contribute to this outcome. The Ryzen 5 2600X's lone win in data encryption by 11.4% is an outlier, likely tied to a specific instruction set feature, but it does not offset the overall performance deficit. The EPYC also achieves this with a 30 W lower TDP, making it both faster and more power-efficient. For anyone choosing between these two based on raw benchmark performance, the EPYC 4124P is the clear winner. The Ryzen 5 2600X retains relevance only for its 6-core count and unlocked multiplier, but the performance data does not favor it in any general-purpose workload.

Where Each One Wins

The AMD EPYC 4124P is the dominant choice across the vast majority of workloads. Its wins in Cinebench R15 multi-core and single-core, PassMark multithread, single-thread, floating point math, integer math, extended instructions, physics, find prime numbers, data compression, and random string sorting establish it as the preferred processor for general computing, scientific calculation, and server-grade tasks. The 63.7% single-thread advantage makes it particularly suited for applications that rely on fast single-core response, such as database queries or lightly threaded server workloads. Its 98.5% lead in extended instructions indicates strong performance for vectorized or SIMD-heavy code, a common requirement in modern scientific and engineering software. The 56.4% physics score advantage suggests it handles complex physical simulations more efficiently. For any workload that benefits from high clock speeds, large caches, or fast DDR5 memory, the EPYC 4124P is unequivocally the better choice.

The AMD Ryzen 5 2600X has a single, narrow domain of superiority: data encryption. Its 11.4% win in the PassMark data encryption test suggests that its older architecture may have a specialized hardware path for certain cryptographic algorithms, or that the benchmark's specific workload aligns better with its instruction set. Beyond that, the Ryzen's 6 cores and 12 threads do not translate into any benchmark victory, and its unlocked multiplier offers overclocking potential that the EPYC lacks. For a user specifically prioritizing encryption throughput or who intends to manually overclock, the Ryzen 5 2600X has a niche role. However, given its 95 W TDP, slower clocks, and older memory support, the data does not support its use in any other performance-critical context. The EPYC 4124P wins everywhere else, often by margins that make the comparison moot.