AMD EPYC 9474F vs AMD Ryzen 5 8400F Comparison

The AMD EPYC 9474F and AMD Ryzen 5 8400F are both Zen 4 parts, but they serve opposite ends of the computing spectrum. The data shows the EPYC 9474F dominates every shared benchmark, delivering roughly 316% higher scores across the board, while the Ryzen 5 8400F counters with a far lower power envelope and a desktop-oriented feature set. The EPYC 9474F is a server/workstation processor with 48 cores and 96 threads, while the Ryzen 5 8400F is a 6-core, 12-thread desktop chip. Their average benchmark scores are nearly identical—25103 for the EPYC versus 25005 for the Ryzen—but this is misleading, as the EPYC’s score is dragged down by its enormous multi-threaded lead being averaged against single-thread results, while the Ryzen’s score reflects a more balanced profile. The verdict is clear: the EPYC 9474F wins outright on raw compute, but the Ryzen 5 8400F is the only one of the two that fits a typical desktop build.

Where Each One Wins

The EPYC 9474F wins every head-to-head benchmark in the data set, with a clean 6-0 record. Its wins are not marginal; they are overwhelming. In Cinebench R23 multi-core, the EPYC scores 86790 against the Ryzen’s 20851, a 316.2% advantage. This pattern repeats across all Cinebench versions: R15 multi-core shows 8748 versus 2101 (316.4% lead), R20 multi-core shows 36451 versus 8757 (316.2% lead). Even in single-core tests, the EPYC wins decisively—R23 single-core is 12252 versus 2943, a 316.3% lead. The EPYC’s wins are entirely compute-driven, reflecting its 48-core configuration and 256 MB of shared L3 cache.

The Ryzen 5 8400F wins no shared benchmarks, but its strengths appear in areas the EPYC does not compete in. The data includes a broader benchmark suite for the Ryzen, including 3DMark and Passmark tests, where it posts scores like 6165 in 3DMark max threads and 74021 in Passmark integer math. These results are not comparable to the EPYC’s Cinebench-only data, so they do not constitute head-to-head wins. However, they show the Ryzen is a capable performer in its own right, with a 4.70 GHz boost clock and a 65W TDP that make it suitable for mainstream desktop tasks. The EPYC’s wins are in server-class workloads; the Ryzen’s wins are in efficiency and platform fit, not raw benchmark scores.

Architecture Differences

Both processors use AMD’s Zen 4 architecture, but they are built on different nodes and designed for different sockets. The EPYC 9474F uses the 5 nm process at TSMC, while the Ryzen 5 8400F uses the 4 nm process, also at TSMC. The EPYC’s die is composed of 8x 72 mm² chiplets, totaling 52,560 million transistors, whereas the Ryzen uses a single 178 mm² die with 25,000 million transistors. The EPYC’s transistor count is more than double the Ryzen’s, reflecting its massive core count.

Cache configurations differ sharply. Both allocate 64 KB of L1 and 1 MB of L2 per core, but the EPYC’s L3 is 256 MB shared, while the Ryzen’s is 16 MB shared. This 16x difference in L3 cache is critical for server workloads that benefit from large shared pools. The EPYC supports twelve-channel DDR5 memory with 460.8 GB/s bandwidth, while the Ryzen is dual-channel with 83.2 GB/s. The EPYC supports ECC memory; the Ryzen does not. The EPYC uses AMD Socket SP5 with 128 PCIe Gen 5 lanes, while the Ryzen uses Socket AM5 with 20 PCIe Gen 4 lanes. The Ryzen has no integrated graphics, and the EPYC also has none listed. The EPYC is from the EPYC 9004 series (Genoa), while the Ryzen is from the 8000 series (Phoenix).

Head-to-Head Benchmarks

The head-to-head data consists entirely of Cinebench tests, and the EPYC 9474F wins all six by nearly identical margins. The largest delta is in Cinebench R15 single-core, where the EPYC leads by 316.9% (1234 versus 296). The smallest delta is 316.2%, seen in R20 multi-core (36451 versus 8757) and R23 multi-core (86790 versus 20851). The consistency of these deltas—all between 316.2% and 316.9%—suggests the EPYC’s advantage is uniform across single-threaded and multi-threaded workloads, which is unusual for a server chip versus a desktop chip. Typically, a server processor wins multi-core by a larger margin than single-core, but here the EPYC’s single-core scores are also far higher, indicating that its per-core performance is not sacrificed for core count.

In Cinebench R23 multi-core, the EPYC’s 86790 score is roughly 4.16 times the Ryzen’s 20851. In R20 multi-core, the ratio is similar: 36451 divided by 8757 equals about 4.16. This consistency indicates that the EPYC’s 8x core advantage (48 versus 6) does not translate into an 8x performance lead, but rather a 4.16x lead, suggesting diminishing returns from memory bandwidth or cache contention. In single-core tests, the EPYC leads by 316.3% in R23 (12252 versus 2943), which is surprising given the Ryzen’s higher boost clock of 4.70 GHz versus the EPYC’s 4.10 GHz. The EPYC’s single-core lead must come from its larger L3 cache or other architectural advantages, not raw clock speed.

Specification Differences

The two processors differ in nearly every specification field except architecture, manufacturer, L1/L2 cache per core, memory type (both DDR5), and production status (both Active). The EPYC has 48 cores and 96 threads; the Ryzen has 6 cores and 12 threads. The EPYC’s base clock is 3.60 GHz, boost is 4.10 GHz; the Ryzen’s base is 4.20 GHz, boost is 4.70 GHz. The EPYC’s TDP is 360W; the Ryzen’s is 65W. The EPYC uses Socket SP5; the Ryzen uses AM5. The process node differs: 5 nm for EPYC, 4 nm for Ryzen. Transistors are 52,560 million versus 25,000 million. Die size is 8x 72 mm² versus 178 mm². L3 cache is 256 MB versus 16 MB. Memory bus is twelve-channel versus dual-channel. Memory bandwidth is 460.8 GB/s versus 83.2 GB/s. ECC support is true versus false. PCIe is Gen 5 with 128 lanes versus Gen 4 with 20 lanes. The EPYC is not multiplier-unlocked; the Ryzen is. Release dates differ: 2022-11-09 for EPYC, 2024-03-31 for Ryzen. Launch MSRP is $6780 for EPYC and $170 for Ryzen. The EPYC’s market segment is Server/Workstation; the Ryzen’s is Desktop.

FAQ

Q: Which processor has more cores?

A: The AMD EPYC 9474F has 48 cores and 96 threads, compared to the AMD Ryzen 5 8400F’s 6 cores and 12 threads.

Q: How much faster is the EPYC 9474F in multi-core Cinebench R23?

A: The EPYC 9474F scores 86790 in Cinebench R23 multi-core, which is 316.2% higher than the Ryzen 5 8400F’s 20851 score.

Q: Does the Ryzen 5 8400F win any shared benchmark?

A: No. The head-to-head data shows the EPYC 9474F wins all 6 shared benchmarks, with delta percentages ranging from 316.2% to 316.9%.

Q: What is the TDP difference between the two?

A: The EPYC 9474F has a TDP of 360W, while the Ryzen 5 8400F has a TDP of 65W.

Q: Which processor supports ECC memory?

A: The EPYC 9474F supports ECC memory, while the Ryzen 5 8400F does not.

Q: What are the launch MSRPs?

A: The EPYC 9474F’s launch MSRP is $6780, and the Ryzen 5 8400F’s launch MSRP is $170.

The Verdict

The AMD EPYC 9474F is the clear performance winner in every shared benchmark, with a 316%+ lead in all Cinebench tests. Its 48-core, 96-thread configuration, 256 MB L3 cache, and twelve-channel memory bandwidth make it a monster for server and workstation workloads. The data shows its average benchmark score is 25103, placing it in the 77th percentile of all CPUs, with nearest rivals like the AMD Ryzen 7 7735HS at 25147 (-0.2% delta) and the AMD Ryzen 7 6800H at 25201 (-0.4% delta). The EPYC’s single-core performance is also exceptional, beating the Ryzen 5 8400F by 316.3% in R23 single-core, despite the Ryzen’s higher boost clock.

The AMD Ryzen 5 8400F, with its 6 cores, 12 threads, and 65W TDP, is a desktop-oriented chip that wins on efficiency and platform compatibility. Its average benchmark score is 25005, also in the 77th percentile, with nearest rivals including the AMD Ryzen 5 7500F at 24964 (0.2% delta) and the Intel Core i7-11850H at 24935 (0.3% delta). The Ryzen’s benchmark suite includes 3DMark and Passmark tests that the EPYC lacks, showing its strengths in consumer workloads. It has a higher boost clock (4.70 GHz versus 4.10 GHz), a lower TDP, and is multiplier-unlocked, making it a better fit for a desktop system.

Who should pick which? The data dictates that server administrators and workstation users needing massive multi-threaded throughput should pick the EPYC 9474F. Its 316.2% lead in Cinebench R23 multi-core and 256 MB L3 cache are decisive for virtualization, rendering, and scientific computing. Desktop users who prioritize lower power consumption, a mainstream socket, and overclocking capability should pick the Ryzen 5 8400F. Its 65W TDP and AM5 socket make it practical for everyday builds, and its benchmark results show it is competitive with other desktop processors in its class. The EPYC wins on raw compute; the Ryzen wins on practicality. There is no overlap in their intended use cases.