AMD EPYC 7542 vs AMD EPYC 7D12 Comparison

Head-to-Head Benchmarks

The benchmark comparison between the AMD EPYC 7542 and the AMD EPYC 7D12 shows a consistent, if modest, advantage for the 7542 across every recorded workload. The database records six head-to-head tests, and the 7542 wins all six. The largest margin appears in Cinebench R15 single-core, where the 7542 scores 548 against the 7D12’s 518, a 5.8% difference. The remaining five tests all show a delta of 5.7% in favor of the 7542.

Looking at multi-core results, the 7542 posts 3886 in Cinebench R15 multi-core versus 3675 for the 7D12. In Cinebench R20 multi-core, the gap is 16193 against 15315. The newer Cinebench R23 multi-core test shows 38555 for the 7542 and 36465 for the 7D12. These are not dramatic separations; they indicate a consistent 5.7% advantage in heavily threaded work.

Single-core scores follow the same pattern. The 7542 reaches 2286 in Cinebench R20 single-core, while the 7D12 records 2162. Cinebench R23 single-core puts the 7542 at 5443 and the 7D12 at 5148. The consistency of the 5.7% to 5.8% delta across all tests suggests the performance difference is structural rather than workload-specific.

It is notably both processors share the same 66th percentile ranking versus all CPUs in the database. Their average benchmark scores, 11152 for the 7542 and 10547 for the 7D12, place them in the same performance tier. The nearest rivals for the 7542 include the AMD Ryzen 5 3500U (average score 11176, a 0.2% delta) and the Intel Xeon Gold 6336Y (11191, a 0.3% delta). The 7D12’s nearest rivals include the Intel Core i7-4790 (10556, a 0.1% delta) and the AMD EPYC 7502P (10512, a 0.3% delta). These rival comparisons reinforce that both chips sit in a crowded mid-range server segment.

Architecture Differences

Both processors are built on the Zen 2 architecture, use the Rome codename, and fit the AMD Socket SP3. They share the same 7 nm process node from TSMC and support DDR4 memory over an eight-channel bus with 204.8 GB/s of bandwidth. ECC memory is supported on both.

The core counts are identical: 32 cores and 64 threads each. The differences begin with clock speeds. The 7542 has a base clock of 2.90 GHz and a boost clock of 3.40 GHz. The 7D12 lists a base clock of 1100.00 GHz, which is clearly a typographical artifact in the database, but its boost clock is 3.00 GHz. The 7542’s higher boost clock aligns with its better single-core scores.

Cache layouts differ notably. The 7542 uses 96 KB of L1 per core and 512 KB of L2 per core, with 128 MB of shared L3. The 7D12 uses 64 KB of L1 per core and 512 KB of L2 per core, but its L3 is organized as 32 MB per die, totaling 128 MB across four dies. This is a subtle but meaningful difference: the 7542’s L3 is described as shared, while the 7D12’s is per-die, even though the total capacity is the same.

Transistor counts and die sizes also differ. The 7542 lists 3,800 million transistors on a 74 mm² die. The 7D12 lists 15,200 million transistors across 4x 74 mm² dies. This explains the 7D12’s multi-die chiplet design, typical of Rome generation parts, while the 7542’s single-die listing appears to reflect a different packaging or measurement approach in the database.

Power envelopes diverge sharply. The 7542 has a TDP of 225, while the 7D12 draws only 85. That is a 140-point gap in thermal design power, which makes the 7D12 far more efficient per watt on paper. PCIe support differs as well: the 7542 lists Gen 4 without lane details, while the 7D12 specifies Gen 4 with 128 lanes (CPU only). Both are active production parts, with the 7542 released on 2019-08-06 and the 7D12 on 2020-04-13.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD EPYC 7542 boosts to 3.40 GHz, while the AMD EPYC 7D12 boosts to 3.00 GHz. This 0.40 GHz advantage helps the 7542 in all single-core benchmarks.

Q: How do the multi-core scores compare?

A: The 7542 wins every multi-core test by 5.7%. In Cinebench R23 multi-core, it scores 38555 versus 36465 for the 7D12. In Cinebench R15 multi-core, the gap is 3886 to 3675.

Q: Are both processors based on the same architecture?

A: Yes, both use the Zen 2 architecture with the Rome codename and are manufactured on TSMC’s 7 nm process. They also share the same socket, AMD Socket SP3.

Q: What is the total L3 cache on each chip?

A: The 7542 has 128 MB of shared L3 cache. The 7D12 also has 128 MB total L3, but it is organized as 32 MB per die across four dies.

Q: How do their thermal design powers differ?

A: The 7542 has a TDP of 225, while the 7D12 has a TDP of 85. The 7D12 requires substantially less cooling and power delivery, which may influence system design choices.

Q: Which chip has a higher average benchmark score?

A: The 7542 averages 11152 across all recorded benchmarks, while the 7D12 averages 10547. Both sit at the 66th percentile versus all CPUs in the database.

Specification Differences

The database lists several fields where the two processors differ. Clock speeds are the most obvious: the 7542 runs at 2.90 GHz base and 3.40 GHz boost, while the 7D12 lists a base clock of 1100.00 GHz (likely a data entry anomaly) and a boost of 3.00 GHz. The TDP gap is large: 225 for the 7542 versus 85 for the 7D12.

L1 cache per core differs: 96 KB on the 7542, 64 KB on the 7D12. L2 is identical at 512 KB per core. L3 is 128 MB shared on the 7542, but 32 MB per die on the 7D12, totaling 128 MB. Transistor counts and die sizes also differ: 3,800 million on a 74 mm² die for the 7542, versus 15,200 million across 4x 74 mm² dies for the 7D12.

PCIe support is listed differently: the 7542 simply says Gen 4, while the 7D12 specifies Gen 4 with 128 lanes (CPU only). Release dates differ, with the 7542 launching on 2019-08-06 and the 7D12 on 2020-04-13. Part numbers are unique: 100-000000075 for the 7542 and 100-000000044 for the 7D12. The series field is populated for the 7542 (EPYC 7002 series) but null for the 7D12.

Where Each One Wins

The AMD EPYC 7542 wins every benchmark in the head-to-head comparison. Its advantages span both single-core and multi-core workloads. The 5.7% to 5.8% deltas are consistent, meaning the 7542 is the better choice for any workload that relies on raw CPU throughput, whether that is rendering, compilation, or database queries. The higher boost clock of 3.40 GHz versus 3.00 GHz likely drives the single-core wins, while the shared L3 cache layout may help in multi-threaded scenarios that benefit from a unified cache pool.

The AMD EPYC 7D12 does not win any benchmark, but it has clear advantages in other dimensions. Its TDP of 85 versus 225 means it can fit in systems with more modest cooling and power budgets. For dense server deployments where per-socket power is constrained, the 7D12 may enable higher core counts per rack or per chassis. The 7D12 also has a later release date and a more explicitly documented PCIe lane count (128 lanes, CPU only), which could matter for systems with many NVMe drives or GPUs.

The 7D12’s multi-die design, with 15,200 million transistors across 4x 74 mm² dies, suggests a chiplet-based approach that may offer manufacturing or yield benefits, though the database does not quantify those. The 7542’s single-die listing (3,800 million transistors on 74 mm²) is harder to interpret, but its performance edge is clear from the measured data.

The Verdict

The data points to a straightforward choice for performance-sensitive buyers: the AMD EPYC 7542. It wins all six head-to-head benchmarks by a consistent 5.7% to 5.8% margin. Its higher boost clock (3.40 GHz versus 3.00 GHz) and shared L3 cache (128 MB shared versus 32 MB per die) align with its superior scores. For workloads where every percentage point of CPU performance matters, the 7542 is the stronger pick.

The AMD EPYC 7D12 is not without merit, but its case rests on efficiency rather than speed. With a TDP of 85, it consumes far less power than the 7542’s 225. For server operators who prioritize power density or who run lightly threaded workloads that do not stress all 32 cores, the 7D12 could be the more sensible deployment. Its later release date and explicit 128-lane PCIe Gen 4 support also make it a modern option for I/O-heavy systems.

Both chips share the same 66th percentile ranking and similar average scores (11152 versus 10547), so neither is a dramatic outlier in the database. The 7542 is the winner in raw performance, while the 7D12 is the winner in thermal efficiency. The choice depends on whether the workload values speed per socket or throughput per watt. For most compute-bound tasks, the recorded benchmarks favor the 7542. For power-constrained environments, the 7D12’s lower TDP makes it a compelling alternative despite its slightly lower scores.