AMD EPYC 73F3 vs AMD EPYC 7D12 Comparison

The AMD EPYC 73F3 and AMD EPYC 7D12 are both server-focused processors built for the SP3 socket, but they approach their workloads from completely different angles. The 73F3 is a high-frequency Zen 3 part with a relatively modest core count, while the 7D12 is a high-core-count, low-power Zen 2 offering. Benchmark data from the database shows a clear, consistent pattern: the 73F3 wins every single recorded Cinebench test, but the margin is remarkably uniform, which tells a specific story about where each chip's strengths lie.

Head-to-Head Benchmarks

The data shows a clean sweep for the AMD EPYC 73F3 across all six Cinebench tests, with the smallest margin being 7.4% and the most common margin being 7.5%. In Cinebench R15 multicore, the 73F3 scores 3949 against the 7D12's 3675, a 7.5% advantage. The single-core R15 test shows the same 7.5% gap, with scores of 557 and 518 respectively. This consistency is the defining feature of this matchup: it is not a case of one chip dominating in one area and losing in another, but rather a steady, uniform performance lead for the 73F3.

Moving to Cinebench R20, the pattern holds. The 73F3 posts a multicore score of 16458 compared to the 7D12's 15315, again a 7.5% difference. In single-core R20, the scores are 2323 and 2162, a 7.4% gap, the only test where the margin dips below 7.5%. The most recent stress test in the database, Cinebench R23, shows the 73F3 at 39187 multicore and 5532 single-core, while the 7D12 reaches 36465 and 5148, with both tests showing a 7.5% delta.

What is notable here is that the 7D12 has twice the cores (32 versus 16) and twice the threads (64 versus 32), yet it loses every multicore test by the same margin as the single-core tests. This indicates that the 73F3's per-core efficiency and higher clock speeds fully compensate for its core-count disadvantage. The average benchmark score in the database reinforces this: the 73F3 averages 11334, while the 7D12 averages 10547. The 73F3 sits in the 67th percentile of all CPUs, just ahead of the 7D12's 66th percentile.

Architecture Differences

The two processors represent different generations of AMD's server architecture. The 73F3 is built on Zen 3, codenamed Milan, while the 7D12 uses Zen 2, codenamed Rome. Both are fabricated on a 7 nm process at TSMC, but the similarities end there. The 73F3 packs 33,200 million transistors across a die configuration listed as 8x 81 mm², while the 7D12 uses 15,200 million transistors across 4x 74 mm². The 73F3 clearly has a denser, more complex design.

Cache configuration differs significantly. The 73F3 has a massive 256 MB of shared L3 cache, while the 7D12 has 32 MB per die, totaling 128 MB. Both share the same L1 and L2 configuration: 64 KB of L1 and 512 KB of L2 per core. The 73F3's doubled L3 cache is a major factor in its ability to maintain high performance across workloads, and it pairs with the architecture's generational improvements.

Clock speeds tell a clear story. The 73F3 has a base clock of 3.50 GHz and a boost clock of 4.00 GHz. The 7D12 has a base clock listed at 1100.00 MHz, which translates to 1.10 GHz, and a boost clock of 3.00 GHz. The 73F3's base clock is more than three times higher, and its boost clock is a full 1 GHz higher. This explains why the 73F3 dominates in single-core tests despite the core-count disparity. The 7D12's extremely low base clock is clearly tuned for power efficiency rather than raw frequency.

Power consumption is another major divider. The 73F3 has a TDP of 240 watts, while the 7D12 is rated at just 85 watts. That is a massive difference, reflecting the 7D12's role as a high-core-count, low-power part. The 7D12's 32 cores at 85 watts versus the 73F3's 16 cores at 240 watts shows a deliberate design trade-off: the 7D12 trades raw speed for density and efficiency, while the 73F3 pours power into fewer, faster cores.

Both processors support DDR4 memory across an eight-channel bus with 204.8 GB/s of bandwidth, and both support ECC memory. Both also provide Gen 4 PCIe with 128 lanes. Neither has integrated graphics, and both are locked multipliers. The 73F3 launched on 2021-03-14, while the 7D12 launched earlier on 2020-04-13.

Where Each One Wins

The AMD EPYC 73F3 wins every benchmark in the database, but the real question is what those wins mean in practice. The 7.5% lead across both single-core and multicore tests suggests that the 73F3 is simply a more capable processor for any workload that cares about per-thread performance. The 5532 single-core R23 score against 5148 shows a clear edge in lightly threaded tasks, which often matter in database queries, virtualization management, and latency-sensitive applications.

The 7D12's strengths do not appear in the benchmark scores, but they are evident in its specifications. With 32 cores and 64 threads, it offers twice the parallelism of the 73F3. For workloads that scale well across many threads, the 7D12 can handle more concurrent tasks, even if each individual task runs slower. The 85 watt TDP is a fraction of the 73F3's 240 watt rating, making the 7D12 far easier to cool and much cheaper to run in dense server environments. The 128 MB of L3 cache, while half the 73F3's 256 MB, is still substantial and supports heavy multi-threaded loads.

The 73F3 is the choice for workloads that need high clock speeds and low latency, such as front-end web servers, real-time analytics, or any task where a single thread's speed is the bottleneck. The 7D12 is the choice for massively parallel workloads like batch processing, container orchestration, or virtualization hosts where core count matters more than clock speed, and where the 85 watt power draw allows for much higher core densities per rack.

FAQ

Q: Which processor has more cores?

A: The AMD EPYC 7D12 has 32 cores and 64 threads, while the AMD EPYC 73F3 has 16 cores and 32 threads.

Q: Why does the 16-core 73F3 beat the 32-core 7D12 in multicore benchmarks?

A: The 73F3 has a base clock of 3.50 GHz and a boost clock of 4.00 GHz, while the 7D12 has a base clock of 1100.00 MHz and a boost clock of 3.00 GHz. The 73F3 also has 256 MB of shared L3 cache versus the 7D12's 128 MB total, and it uses the newer Zen 3 architecture.

Q: What is the power consumption difference?

A: The 73F3 has a TDP of 240 watts, while the 7D12 has a TDP of 85 watts.

Q: What is the performance margin in Cinebench R23?

A: The 73F3 scores 39187 in multicore and 5532 in single-core, while the 7D12 scores 36465 and 5148. The 73F3 leads by 7.5% in both tests.

Q: Do both processors support the same memory and expansion?

A: Yes, both support DDR4 memory with an eight-channel bus and 204.8 GB/s bandwidth, and both provide Gen 4 PCIe with 128 lanes.

Q: How do their average benchmark scores compare?

A: The 73F3 has an average benchmark score of 11334, while the 7D12 averages 10547.

The Verdict

The data points to a clear winner for raw performance: the AMD EPYC 73F3. It wins all six recorded Cinebench tests with a consistent 7.4% to 7.5% margin, and it achieves this despite having half the core count of the 7D12. The 73F3's 4.00 GHz boost clock, 256 MB of L3 cache, and Zen 3 architecture deliver superior results in every recorded workload. Its average benchmark score of 11334 and 67th percentile ranking place it ahead of the 7D12's 10547 average and 66th percentile.

The 7D12 should not be dismissed. Its 32 cores and 64 threads at an 85 watt TDP make it a compelling option for large-scale, power-sensitive deployments where throughput per watt matters more than absolute speed. The 73F3's 240 watt TDP is nearly three times higher, which carries real operational consequences in dense server racks.

The practical advice from the data is simple. Pick the 73F3 if your workloads are latency-sensitive, require high single-thread performance, or cannot fully utilize 32 cores. Pick the 7D12 if you need maximum core density, run heavily parallelized workloads that can use 64 threads, and want to minimize power draw. The 73F3 is the faster chip in every benchmark recorded, but the 7D12's efficiency and core count make it the better fit for a different class of deployment. The 73F3 had a launch MSRP of $3521; no launch MSRP is recorded for the 7D12.

Specification Differences

| Specification | AMD EPYC 73F3 | AMD EPYC 7D12 |

|---|---|---|

| Cores | 16 | 32 |

| Threads | 32 | 64 |

| Base Clock | 3.50 | 1100.00 |

| Boost Clock | 4.00 | 3.00 |

| TDP | 240 | 85 |

| Architecture | Zen 3 | Zen 2 |

| Codename | Milan | Rome |

| Transistors | 33,200 million | 15,200 million |

| Die Size | 8x 81 mm² | 4x 74 mm² |

| L3 Cache | 256 MB (shared) | 32 MB (per die), 128 MB total |

| Release Date | 2021-03-14T17:00:00.000Z | 2020-04-13T17:00:00.000Z |

| Launch MSRP | $3521 | null |

| Part Number | 100-000000321100-100000321WOF | 100-000000044 |

| Generation | EPYC (Zen 3 (Milan)) | EPYC (Zen 2 (Rome)) |