AMD EPYC 7H12 vs AMD Ryzen 5 4500 Comparison

The Verdict

The data presents a stark contrast between two AMD Zen 2 processors aimed at entirely different market segments. The AMD Ryzen 5 4500 is a 6-core, 12-thread desktop part with a 65W TDP, while the AMD EPYC 7H12 is a 64-core, 128-thread server/workstation processor with a 280W TDP. Benchmark results show the EPYC 7H12 winning all 6 head-to-head comparisons, with a dominant performance advantage that ranges from 76.9% to 77% across both single-core and multi-core Cinebench tests.

The Ryzen 5 4500, with its launch MSRP of $129, positions itself as an entry-level desktop processor. Its average benchmark score of 17,333 places it in the 71st percentile of all CPUs, nearly identical to its nearest rival, the AMD Ryzen 3 210, which scores 17,321 (a 0.1% difference). The EPYC 7H12, despite having a slightly lower average benchmark score of 17,120 (also in the 71st percentile), is a completely different class of hardware. Its nearest rival, the Intel Core i5-11400F, scores 17,177 (a -0.3% delta), showing that the EPYC’s average is dragged down by its relatively modest single-thread performance compared to its massive multi-thread scores.

For desktop users, the Ryzen 5 4500 is the logical choice due to its lower TDP, consumer socket compatibility, and unlocked multiplier. For server workloads requiring massive parallel processing, the EPYC 7H12 is the only option that makes sense, despite its higher power draw and lack of an unlocked multiplier. The data makes this split unambiguous: the Ryzen 5 4500 wins in accessibility, while the EPYC 7H12 wins in raw throughput.

Where Each One Wins

The EPYC 7H12 wins decisively in every benchmark category tested. In Cinebench R23 multi-core, it scores 59,188 versus the Ryzen 5 4500’s 13,677, a staggering 76.9% advantage. This pattern repeats across all Cinebench versions: R15 multi-core shows 5,965 versus 1,378, and R20 multi-core shows 24,858 versus 5,744. The single-core results also favor the EPYC, though the margin is equally large—Cinebench R23 single-core shows 8,355 versus 1,930, a 77% difference. This suggests the EPYC’s higher boost clock of 3.30 GHz, combined with its larger 256 MB L3 cache, gives it a per-thread advantage despite a lower base clock of 2.60 GHz compared to the Ryzen’s 3.60 GHz base and 4.10 GHz boost.

The Ryzen 5 4500 wins in areas not captured by the head-to-head benchmarks. It has a 65W TDP versus the EPYC’s 280W, making it suitable for standard desktop builds with air cooling. It supports DDR4 memory in a dual-channel configuration with 51.2 GB/s bandwidth, while the EPYC requires eight-channel memory to reach 204.8 GB/s. The Ryzen also uses the AMD Socket AM4 platform with Gen 3 PCIe (16 lanes), whereas the EPYC uses Socket SP3 with Gen 4 PCIe. For gaming or general desktop use, the Ryzen’s higher boost clock and lower power requirements make it the practical choice, even though the EPYC outperforms it in synthetic benchmarks.

Architecture Differences

Both processors share the Zen 2 architecture and are manufactured on TSMC’s 7 nm process, but they diverge significantly in their physical and logical design. The Ryzen 5 4500, codenamed Renoir, is a monolithic die with 9,800 million transistors on a 156 mm² die. It features 6 cores and 12 threads, with 64 KB of L1 cache per core, 512 KB of L2 cache per core, and 8 MB of shared L3 cache. The EPYC 7H12, codenamed Rome, uses a chiplet design with 3,800 million transistors per 74 mm² die, and it has 64 cores and 128 threads. Its cache hierarchy is substantially larger: 96 KB of L1 per core, 512 KB of L2 per core, and 256 MB of shared L3 cache.

The memory subsystems reflect their different market positions. The Ryzen 5 4500 supports dual-channel DDR4 with 51.2 GB/s bandwidth and does not support ECC memory. The EPYC 7H12 supports eight-channel DDR4 with 204.8 GB/s bandwidth and includes ECC memory support, which is critical for server reliability. PCIe capabilities also differ: the Ryzen offers Gen 3 with 16 lanes from the CPU, while the EPYC provides Gen 4 connectivity, allowing for higher bandwidth to GPUs and NVMe storage.

The EPYC’s 256 MB L3 cache is 32 times larger than the Ryzen’s 8 MB, which explains its superior performance in cache-sensitive workloads. The Ryzen’s higher base clock (3.60 GHz vs 2.60 GHz) and boost clock (4.10 GHz vs 3.30 GHz) give it a per-core frequency advantage, but the EPYC’s sheer core count and cache capacity overwhelm this in multi-threaded tests. The Ryzen has an unlocked multiplier, enabling overclocking, while the EPYC is locked. Both processors have integrated graphics listed as null, meaning neither includes an iGPU.

FAQ

Q: Which processor has better multi-core performance?

A: The AMD EPYC 7H12 dominates multi-core benchmarks. In Cinebench R23 multi-core, it scores 59,188 compared to the Ryzen 5 4500’s 13,677, a 76.9% advantage. The same margin appears in R15 (5,965 vs 1,378) and R20 (24,858 vs 5,744).

Q: Is the Ryzen 5 4500 suitable for overclocking?

A: Yes, the Ryzen 5 4500 has an unlocked multiplier, allowing users to adjust clock speeds. The EPYC 7H12 does not have an unlocked multiplier, so it cannot be overclocked in the same manner.

Q: What memory configurations do these processors support?

A: The Ryzen 5 4500 supports dual-channel DDR4 with 51.2 GB/s bandwidth and does not support ECC memory. The EPYC 7H12 supports eight-channel DDR4 with 204.8 GB/s bandwidth and includes ECC memory support.

Q: How do the power requirements compare?

A: The Ryzen 5 4500 has a 65W TDP, while the EPYC 7H12 has a 280W TDP. This makes the Ryzen suitable for standard desktop cooling solutions, whereas the EPYC requires server-grade thermal management.

Q: Which processor has a higher single-thread score?

A: The EPYC 7H12 wins in single-thread tests. In Cinebench R23 single-core, it scores 8,355 versus the Ryzen 5 4500’s 1,930, a 77% difference. This is despite the Ryzen having a higher boost clock (4.10 GHz vs 3.30 GHz).

Q: Are these processors comparable in overall benchmark standings?

A: Both processors are in the 71st percentile of all CPUs. The Ryzen 5 4500 has an average benchmark score of 17,333, while the EPYC 7H12 scores 17,120. The EPYC’s nearest rival is the Intel Core i5-11400F (17,177, -0.3% delta), and the Ryzen’s nearest rival is the AMD Ryzen 3 210 (17,321, 0.1% delta).

Head-to-Head Benchmarks

The head-to-head data is unambiguous: the EPYC 7H12 wins all 6 comparisons, with identical 76.9% deltas in multi-core tests and a 77% delta in single-core tests. Starting with Cinebench R15 multi-core, the EPYC scores 5,965 against the Ryzen’s 1,378, a difference of 4,587 points. The single-core R15 test shows 842 versus 194, a margin of 648 points. These gaps are not incremental—they represent a fundamental difference in processing capability.

Moving to Cinebench R20, the multi-core test shows the EPYC at 24,858 versus the Ryzen’s 5,744. The single-core test shows 3,509 versus 810. In both cases, the EPYC’s score is roughly 4.3 times higher than the Ryzen’s. The same ratio holds in Cinebench R23: multi-core 59,188 versus 13,677, and single-core 8,355 versus 1,930. The consistency of the 76.9% and 77% deltas across all tests indicates that the performance gap is systemic rather than workload-specific.

The Ryzen 5 4500’s best showing is in the 3DMark tests, where it scores 4,795 in 16-thread and max-thread tests, 4,077 in 8-thread, 2,682 in 4-thread, and 1,400 in 2-thread. It also achieves a single-thread score of 711 in 3DMark. In PassMark, the Ryzen scores 16,091 in multithread, 2,593 in single-thread, and 228,741 in data compression. These numbers are not directly compared to the EPYC in the head-to-head data, but they show the Ryzen’s capability for desktop workloads.

The EPYC’s victory in single-core tests is notable because it contradicts the expected advantage of the Ryzen’s higher boost clock. This suggests that the EPYC’s 256 MB L3 cache provides a significant per-thread benefit, allowing it to maintain higher effective performance despite lower clock speeds. For users deciding between these two, the choice is clear: the Ryzen 5 4500 serves desktop needs with lower power and cost, while the EPYC 7H12 is a server powerhouse that outperforms it by nearly 77% in every metric.