AMD EPYC 8224P vs AMD Ryzen 9 9950X3D Comparison

The AMD Ryzen 9 9950X3D and AMD EPYC 8224P both land in the 95th percentile of all CPUs tested, and their average benchmark scores are remarkably close—75,779 for the Ryzen against 75,582 for the EPYC, a gap of just 0.3%. Yet the head-to-head data reveals two completely different performance profiles. The Ryzen 9 9950X3D wins 12 of the 15 direct comparisons, often by massive margins, while the EPYC 8224P takes the other three. The story is not about overall capability, but about where each chip chooses to expend its resources.

Head-to-Head Benchmarks

The Ryzen 9 9950X3D dominates the multi-threaded and compute-heavy workloads, and the margins are frequently enormous. In PassMark’s find prime numbers test, the Ryzen scores 613 against the EPYC’s 206, a 197.6% advantage—the largest delta in the entire comparison. PassMark physics shows a 75.2% lead (5,670 vs 3,236), and Cinebench R15 multi-core goes to the Ryzen at 6,536 versus 3,891, a 68% win. Even in the more modern Cinebench R23 multi-core test, the Ryzen’s 42,018 beats the EPYC’s 38,607, though the margin shrinks to 8.8%. PassMark floating point math follows the same pattern: 159,724 for the Ryzen against 104,698 for the EPYC, a 52.6% gap, while integer math sees a 31.1% advantage (243,209 vs 185,556).

The Ryzen also sweeps the PassMark suite’s other categories. Extended instructions favor the Ryzen 73,011 to 43,614, a 67.4% lead. Data compression shows a 29.4% win (908,421 vs 702,065), and multithread overall goes to the Ryzen at 70,255 versus 45,421, a 54.7% margin. Random string sorting is closer, with the Ryzen ahead 95,423 to 81,674, a 16.8% gain. Single-thread performance is a total rout: the Ryzen scores 4,737 in PassMark single-thread, more than double the EPYC’s 2,339, for a 102.5% advantage in both single-thread entries.

The EPYC 8224P’s three wins are narrower but telling. Cinebench R15 single-core goes to the EPYC at 549 versus 350, a 36.2% margin. Cinebench R23 single-core is even more lopsided—5,450 to 2,259, a 58.6% lead. The third win is PassMark data encryption, where the EPYC edges out the Ryzen 46,742 to 44,536, a modest 4.7% gain. That encryption result is the only EPYC victory under 36%. The pattern is clear: the EPYC’s wins are in single-core rendering and encryption, while the Ryzen wins everything else, often by triple-digit percentages.

The Verdict

The data supports a straightforward split. The AMD Ryzen 9 9950X3D is the choice for anyone whose workload is compute-heavy, multi-threaded, or latency-sensitive. Its 197.6% lead in prime number finding, 75.2% lead in physics, and 68% lead in Cinebench R15 multi-core make it the obvious pick for scientific computing, simulation, and content creation. The Ryzen also doubles the EPYC in single-thread PassMark performance, which means snappier general responsiveness and better performance in lightly-threaded applications.

The AMD EPYC 8224P is not a general-purpose winner, but it has a specific niche. Its 58.6% lead in Cinebench R23 single-core and 36.2% lead in R15 single-core suggest it handles single-threaded rendering tasks with unusual efficiency. The 4.7% edge in data encryption points to a strength in cryptographic workloads. For a server environment running many single-threaded virtual machines or encryption-heavy services, those wins matter. But for nearly any other task, the Ryzen 9 9950X3D is faster, and often dramatically so.

The overall average scores are nearly identical—the Ryzen is just 0.3% ahead—but that masks the distribution. The Ryzen’s wins are broad and large; the EPYC’s wins are narrow and specific. Ignore the averages and follow the workload.

Architecture Differences

The two chips come from different generations and design philosophies. The AMD Ryzen 9 9950X3D is a desktop part from the 9000 series, built on Zen 5 architecture with the Granite Ridge codename. It uses a 4 nm process at TSMC and packs 16,630 million transistors across two 70.6 mm² dies. The EPYC 8224P is a server/workstation chip from the EPYC 8004 series, using the older Zen 4c architecture with the Siena codename, fabricated on a 5 nm process. It has 17,750 million transistors on two 73 mm² dies—more transistors on a larger, older node.

Core counts differ significantly: the Ryzen has 16 cores and 32 threads, while the EPYC has 24 cores and 48 threads. The EPYC’s extra cores do not translate into multi-core wins, however, because its clocks are far lower. The Ryzen runs at 4.30 GHz base and 5.70 GHz boost, while the EPYC is limited to 2.55 GHz base and 3.00 GHz boost. That 2.7 GHz boost advantage explains the Ryzen’s dominance in most tests.

Cache layouts are also different. The Ryzen has 80 KB L1 per core, 1 MB L2 per core, and 128 MB L3. The EPYC has 64 KB L1 per core, 1 MB L2 per core, and only 64 MB shared L3. Both support DDR5 memory and ECC, but the Ryzen uses a dual-channel memory bus with 89.6 GB/s bandwidth, while the EPYC uses a six-channel bus with 230.4 GB/s—nearly 2.6 times the bandwidth. The EPYC also offers 96 PCIe Gen 5 lanes versus the Ryzen’s 24, and it lacks integrated graphics, whereas the Ryzen includes Radeon Graphics.

The Ryzen is unlocked for overclocking and fits AMD Socket AM5; the EPYC is locked and uses Socket SP6. The Ryzen launched in January 2025 at $699 MSRP; the EPYC launched in September 2023 at $855 MSRP.

FAQ

Q: Which CPU has more cores?

A: The AMD EPYC 8224P has 24 cores and 48 threads, compared to the AMD Ryzen 9 9950X3D’s 16 cores and 32 threads.

Q: Why does the Ryzen win most benchmarks despite fewer cores?

A: The Ryzen 9 9950X3D has a much higher boost clock of 5.70 GHz versus the EPYC’s 3.00 GHz, and it uses newer Zen 5 architecture on a 4 nm process versus Zen 4c on 5 nm.

Q: Where does the EPYC 8224P actually beat the Ryzen?

A: The EPYC wins in Cinebench R15 single-core (549 vs 350), Cinebench R23 single-core (5,450 vs 2,259), and PassMark data encryption (46,742 vs 44,536).

Q: Is the EPYC’s memory bandwidth an advantage?

A: The EPYC has a six-channel memory bus delivering 230.4 GB/s, while the Ryzen has a dual-channel bus at 89.6 GB/s. This does not appear in the benchmark wins, however.

Q: Are these chips in the same performance class?

A: Yes, both sit in the 95th percentile of all CPUs, and their average benchmark scores are within 0.3% of each other (75,779 for the Ryzen vs 75,582 for the EPYC).

Q: What is the Ryzen’s biggest single win?

A: The Ryzen leads by 197.6% in PassMark find prime numbers (613 vs 206), its largest margin in any head-to-head test.

Where Each One Wins

The AMD Ryzen 9 9950X3D is the clear winner for multi-threaded compute, general processing, and single-thread responsiveness. It takes PassMark multithread by 54.7%, floating point math by 52.6%, integer math by 31.1%, and extended instructions by 67.4%. Its Cinebench R23 multi-core score of 42,018 is 8.8% ahead, and its Cinebench R15 multi-core lead is a massive 68%. For data compression, it wins by 29.4%, and for random string sorting, by 16.8%. Its single-thread PassMark score is 102.5% higher, meaning it will feel faster in everyday desktop use and lightly-threaded applications. It is the pick for rendering, simulation, development, and any mixed workload.

The AMD EPYC 8224P wins in exactly three scenarios. For single-threaded rendering tasks, it is decisively better: Cinebench R23 single-core shows a 58.6% lead, and R15 single-core shows a 36.2% lead. For encryption workloads, it is slightly ahead at 4.7%. Its higher core count (24 vs 16) and six-channel memory bandwidth do not translate into benchmark wins, but its 96 PCIe Gen 5 lanes and server socket target it at platforms needing extensive I/O. The data says this: if the job is single-threaded rendering or encryption, take the EPYC. For everything else in the benchmark suite, the Ryzen 9 9950X3D is the faster processor, often by a wide margin.