AMD EPYC Embedded 8224P vs AMD Ryzen 9 9950X Comparison

The AMD Ryzen 9 9950X and AMD EPYC Embedded 8224P are both 2020s-era AMD parts, but they target completely different corners of the market. The Ryzen 9 is a desktop flagship aimed at high-frequency responsiveness, while the EPYC Embedded is a dense server chip built for throughput in constrained environments. The benchmark data shows a fascinating split: the Ryzen 9 wins the majority of head-to-head tests, but the EPYC takes the most important multi-threaded workloads and offers a dramatically different feature set. Below is the direct comparison based solely on the provided facts.

Head-to-Head Benchmarks

The most striking result is in single-core performance, where the two chips go in opposite directions. In the PassMark single-thread test, the Ryzen 9 9950X scores 4737 against the EPYC’s 2357, a massive 101% advantage for the desktop part. This trend continues in Cinebench R23 single-core, where the Ryzen 9’s 2202 is beaten by the EPYC’s 5864, a 62.4% win for the EPYC in the other direction. Wait—that is a major inversion. The EPYC Embedded 8224P actually wins Cinebench R23 single-core by a wide margin, despite losing PassMark single-thread by double. This suggests the EPYC’s cores are tuned for sustained server workloads, not bursty desktop tasks. The same pattern appears in Cinebench R15 single-core: EPYC wins 590 to 344, a 41.7% gap.

Multi-threaded results are more nuanced. In Cinebench R23 multi-core, the EPYC edges out the Ryzen 9 with a score of 41542 versus 40924, a slim 1.5% lead for the server chip. That is a narrow victory, but it flips the script from the Ryzen 9’s 51.3% win in Cinebench R15 multi-core (6335 vs 4187). The older R15 test favors the Ryzen 9’s higher boost clock, while R23 appears to reward the EPYC’s extra eight cores and 16 threads. Moving to PassMark, the Ryzen 9 dominates the multi-threaded suite: it scores 66030 in PassMark multi-thread (35.1% ahead of the EPYC’s 48873), 242097 in integer math (25.3% ahead of 193256), and 159063 in floating-point math (32.5% ahead of 120066). The Ryzen 9 also wins data compression by 31.5% (896544 vs 681754) and extended instructions by 55.3% (71564 vs 46091).

The EPYC’s other wins are narrower but notable. It beats the Ryzen 9 in PassMark physics by 20.2% (4110 vs 3279), which is an odd result given the Ryzen 9’s higher clock. The EPYC also wins Cinebench R23 multi-core as noted, giving it 4 wins out of 15 head-to-head tests. The Ryzen 9 takes 11 wins, including every PassMark test except physics. The total benchmark picture is close: the Ryzen 9’s average benchmark score is 74640 (94th percentile), while the EPYC’s is 76492 (95th percentile). That 2.5% gap in the EPYC’s favor comes from its Cinebench R23 and R20 scores, which are not fully reflected in the head-to-head list.

Architecture Differences

The two chips are built on different Zen generations and process nodes. The Ryzen 9 9950X uses Zen 5 architecture on a 4 nm TSMC process, with a codename of Granite Ridge. The EPYC Embedded 8224P uses Zen 4c architecture on a 5 nm TSMC process, with a codename of Siena. This explains the clock speed divergence: the Ryzen 9 has a base clock of 4.30 GHz and a boost clock of 5.70 GHz, while the EPYC sits at 2.55 GHz base and 3.00 GHz boost. The EPYC compensates with more cores (24 vs 16) and threads (48 vs 32), but each core is smaller and slower.

Cache layouts differ significantly. The Ryzen 9 has 80 KB of L1 per core and 1 MB of L2 per core, with 64 MB of L3. The EPYC has 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The transistor counts are close (16,630 million for Ryzen, 17,750 million for EPYC), but the die sizes differ: the Ryzen 9 uses two 70.6 mm² dies, while the EPYC uses two 73 mm² dies. The EPYC’s denser Zen 4c cores allow more of them on a similar die area, but the Ryzen 9’s larger L1 cache per core suggests a design focused on single-thread efficiency.

Memory and I/O are where the EPYC pulls ahead decisively. The Ryzen 9 has dual-channel DDR5 memory with 89.6 GB/s bandwidth. The EPYC has six-channel DDR5 with 230.4 GB/s bandwidth, a 2.57x increase. Both support ECC memory, which is unusual for a desktop part but a given for server silicon. PCIe lane counts are starkly different: the Ryzen 9 offers Gen 5 with 24 lanes (CPU only), while the EPYC offers Gen 5 with 96 lanes (CPU only). That quadrupling of lanes makes the EPYC suitable for expansion-heavy systems. The Ryzen 9 includes integrated Radeon Graphics, while the EPYC has none. The Ryzen 9 also has an unlocked multiplier, the EPYC does not.

FAQ

Q: Which CPU wins more benchmark tests?

A: The AMD Ryzen 9 9950X wins 11 of the 15 head-to-head tests, including all PassMark math, compression, and sorting tests. The AMD EPYC Embedded 8224P wins 4 tests: Cinebench R23 multi-core, Cinebench R23 single-core, Cinebench R15 single-core, and PassMark physics.

Q: How do their single-core scores compare?

A: It depends on the test. In PassMark single-thread, the Ryzen 9 scores 4737 versus the EPYC’s 2357, a 101% advantage. But in Cinebench R23 single-core, the EPYC scores 5864 versus the Ryzen 9’s 2202, a 62.4% lead. The Ryzen 9 wins PassMark, the EPYC wins Cinebench.

Q: Is the EPYC faster in multi-core workloads?

A: Only in specific tests. The EPYC wins Cinebench R23 multi-core with 41542 versus 40924 (1.5% lead). The Ryzen 9 wins Cinebench R15 multi-core by 51.3% (6335 vs 4187) and PassMark multi-thread by 35.1% (66030 vs 48873).

Q: What memory bandwidth does each support?

A: The Ryzen 9 9950X supports dual-channel DDR5 with 89.6 GB/s bandwidth. The EPYC Embedded 8224P supports six-channel DDR5 with 230.4 GB/s bandwidth. The EPYC’s bandwidth is 2.57 times higher.

Q: Do both CPUs support ECC memory?

A: Yes, both the Ryzen 9 9950X and the EPYC Embedded 8224P have ECC memory support. This is a rare feature for a desktop chip like the Ryzen 9.

Q: Which CPU has more PCIe lanes?

A: The EPYC Embedded 8224P has 96 Gen 5 lanes (CPU only), while the Ryzen 9 9950X has 24 Gen 5 lanes (CPU only). The EPYC offers 4 times the lane count.

Specification Differences

The following fields differ between the two CPUs:

• Cores: Ryzen 9 has 16, EPYC has 24.
• Threads: Ryzen 9 has 32, EPYC has 48.
• Base Clock: Ryzen 9 at 4.30 GHz, EPYC at 2.55 GHz.
• Boost Clock: Ryzen 9 at 5.70 GHz, EPYC at 3.00 GHz.
• TDP: Ryzen 9 at 170 W, EPYC at 160 W.
• Socket: Ryzen 9 on AMD Socket AM5, EPYC on AMD Socket SP6.
• Architecture: Ryzen 9 on Zen 5, EPYC on Zen 4c.
• Codename: Ryzen 9 is Granite Ridge, EPYC is Siena.
• Process Node: Ryzen 9 on 4 nm, EPYC on 5 nm.
• Transistors: Ryzen 9 at 16,630 million, EPYC at 17,750 million.
• Die Size: Ryzen 9 uses 2x 70.6 mm², EPYC uses 2x 73 mm².
• L1 Cache: Ryzen 9 has 80 KB per core, EPYC has 64 KB per core.
• L3 Cache: Ryzen 9 has 64 MB, EPYC has 64 MB (shared).
• Memory Bus: Ryzen 9 is dual-channel, EPYC is six-channel.
• Memory Bandwidth: Ryzen 9 at 89.6 GB/s, EPYC at 230.4 GB/s.
• PCIe: Ryzen 9 has Gen 5, 24 lanes; EPYC has Gen 5, 96 lanes.
• Integrated Graphics: Ryzen 9 has Radeon Graphics, EPYC has none.
• Market Segment: Ryzen 9 is Desktop, EPYC is Server/Workstation.
• Release Date: Ryzen 9 on 2024-08-14, EPYC on 2023-09-17.
• Launch MSRP: Ryzen 9 at $649, EPYC has none listed.
• Multiplier Unlocked: Ryzen 9 is unlocked, EPYC is locked.
• Part Number: Ryzen 9 is 100-000001277, EPYC is 100-000001418.

Where Each One Wins

The Ryzen 9 9950X is the clear winner for desktop-centric workloads that prioritize raw speed per thread and burst performance. Its 101% lead in PassMark single-thread and 35.1% lead in PassMark multi-thread make it ideal for gaming, general productivity, and software compilation where latency matters. The 55.3% advantage in extended instructions and 31.5% lead in data compression point to strong performance in encryption, media encoding, and archive management. Its integrated Radeon Graphics means it can run headless or with basic display output without a discrete GPU, which is a practical bonus for a desktop build.

The EPYC Embedded 8224P wins where the Ryzen 9 cannot compete: memory bandwidth and I/O. Its six-channel DDR5 with 230.4 GB/s bandwidth is over 2.5 times the Ryzen 9’s, and its 96 PCIe Gen 5 lanes allow for massive storage arrays or multiple accelerators. The EPYC’s Cinebench R23 single-core win (5864 vs 2202) and multi-core win (41542 vs 40924) indicate it handles sustained, thermally constrained workloads better, which is typical for embedded server parts. Its 20.2% win in PassMark physics also suggests better performance in simulation or physics-based computation. For a server chassis where power is capped at 160 W and space is at a premium, the EPYC’s 24 cores and 48 threads in the same TDP envelope as the Ryzen 9’s 16 cores give it a density advantage.

The Verdict

Pick the AMD Ryzen 9 9950X if you need a desktop processor that excels in most benchmark categories. It wins 11 of 15 head-to-head tests, dominates PassMark multi-thread by 35.1%, and offers a 101% single-thread advantage in that suite. The unlocked multiplier and integrated graphics make it a flexible choice for a high-end workstation or gaming rig. Its 89.6 GB/s memory bandwidth is sufficient for dual-channel DDR5, and its 24 PCIe lanes cover a typical GPU plus NVMe setup. The 4 nm Zen 5 architecture delivers higher clock speeds (5.70 GHz boost) that the EPYC cannot match.

Pick the AMD EPYC Embedded 8224P if your workload demands memory bandwidth, PCIe expansion, or dense core counts in a server environment. The six-channel memory bus with 230.4 GB/s is a 2.57x advantage over the Ryzen 9, and the 96 PCIe Gen 5 lanes are four times more. Its Cinebench R23 multi-core win (41542 vs 40924) shows it can hold its own in threaded rendering, and its 24 cores offer 50% more threads than the Ryzen 9. The EPYC’s 95th percentile ranking versus the Ryzen 9’s 94th suggests that in the right workload mix, the server chip edges out the desktop part. Just note the Cinebench R23 single-core anomaly: the EPYC’s 5864 score is unusually high, so do not assume the Ryzen 9 wins every single-thread test. For a rack-mounted appliance or a storage server, the EPYC is the practical choice; for a standard desktop, the Ryzen 9 is the safer bet.