AMD EPYC 7D12 vs Intel Xeon Gold 6312U Comparison

The AMD EPYC 7D12 and Intel Xeon Gold 6312U are both server-class processors aimed at similar workloads, but the benchmark data shows a remarkably consistent pattern: the EPYC 7D12 wins every single Cinebench test in this comparison. The margins are small but uniform, which points to a fundamental efficiency advantage rather than any single architectural feature dominating. For builders deciding between these two, the data suggests that the AMD part holds a slight but reliable edge across both single-threaded and multi-threaded rendering workloads.

Head-to-Head Benchmarks

The head-to-head results are notable for their consistency. In Cinebench R15 multi-core, the EPYC 7D12 scores 3675 against the Xeon Gold 6312U's 3586, a 2.5% advantage. The same 2.5% delta appears in R15 single-core, where the AMD chip posts 518 versus 506. This pattern repeats exactly in Cinebench R20: the EPYC 7D12 takes multi-core with 15315 against 14943, and single-core with 2162 against 2109, again a 2.5% lead.

Moving to Cinebench R23, the story does not change. The EPYC 7D12's multi-core score of 36465 beats the Xeon's 35579 by 2.5%. Single-core follows suit: 5148 versus 5022, another 2.5% margin. Across all six benchmarks, the AMD processor wins by precisely the same relative amount. This uniformity suggests the performance gap is not workload-dependent but rather a consistent throughput difference that scales from one core all the way up to the full chip.

The average benchmark scores tell a similar tale, though the gap narrows. The EPYC 7D12 has an average score of 10547, while the Xeon Gold 6312U sits at 10291. That is a difference of roughly 2.5% as well, which aligns with the individual Cinebench results. Both processors land in the 66th percentile against all CPUs, meaning they occupy the same performance tier overall. The nearest rivals for the EPYC 7D12 include the Intel Core i7-4790 at 10556 (0.1% ahead) and the AMD EPYC 7502P at 10512 (0.3% behind), while the Xeon Gold 6312U's closest competitor is the Intel Xeon E3-1565L v5 at 10320 (0.3% ahead). The 6338N appears in both lists, sitting between them at 10347.

Architecture Differences

The underlying architectures explain much of the performance picture. The AMD EPYC 7D12 is built on Zen 2 architecture with the Rome codename, fabricated on a 7nm process at TSMC. It packs 32 cores and 64 threads, which is a higher core count than its rival. The chip uses a multi-die design with four 74 mm² dies and a total of 15,200 million transistors. Cache is distributed as 64 KB of L1 per core, 512 KB of L2 per core, and 32 MB of L3 per die, summing to a total of 128 MB of L3 cache across the entire package.

The Intel Xeon Gold 6312U takes a different approach. It uses Ice Lake architecture with the Ice Lake-SP codename, built on Intel's 10nm process. The core count is lower at 24 cores and 48 threads. Intel opts for a monolithic design here, with no transistor count or die size figures listed. The cache hierarchy is also different: 64 KB of L1 per core, a larger 1 MB of L2 per core, and 36 MB of shared L3 cache. Notably, the Intel chip does not have a total L3 figure listed, but the per-core L2 is double the AMD part's allocation.

Memory support is identical on paper: both use DDR4 with eight-channel memory buses and 204.8 GB/s of bandwidth, and both support ECC memory. The PCIe capabilities differ significantly. The AMD EPYC 7D12 offers Gen 4 with 128 lanes from the CPU, while the Intel Xeon Gold 6312U provides Gen 4 with 64 lanes. That is a major differentiator for systems needing maximum I/O expansion. Both processors target the server/workstation market segment and remain in active production.

Clock speeds favor Intel on paper. The Xeon Gold 6312U has a base clock of 2.40 GHz and a boost clock of 3.60 GHz, compared to the EPYC 7D12's 1.10 GHz base and 3.00 GHz boost. The AMD part compensates with more cores and a much lower 85W TDP versus Intel's 185W TDP. The EPYC 7D12 uses AMD Socket SP3, while the Xeon uses Intel Socket 4189. Neither chip has an unlocked multiplier, and neither includes integrated graphics.

Where Each One Wins

The benchmark data is unambiguous: the AMD EPYC 7D12 wins all six head-to-head Cinebench tests. In multi-threaded workloads, the 32-core, 64-thread configuration gives it a consistent 2.5% edge over the 24-core, 48-thread Xeon. This advantage holds in Cinebench R15, R20, and R23, which are well-established rendering benchmarks that scale with core count and memory bandwidth. For batch rendering, video encoding, or any fully parallel compute task, the data points squarely at the EPYC 7D12.

Single-threaded performance also favors AMD, which is more surprising given the clock speed deficit. The EPYC 7D12's 3.00 GHz boost is lower than the Xeon's 3.60 GHz, yet it still manages a 2.5% lead in every single-core test. This indicates that Zen 2's instruction-per-clock efficiency outweighs Intel's raw frequency advantage in these workloads. For lightly threaded tasks like legacy database queries or single-threaded application logic, the AMD chip remains competitive.

The Intel Xeon Gold 6312U does not win any benchmark in this comparison, but that does not mean it has no place. Its higher base clock of 2.40 GHz means it will sustain higher performance under sustained all-core loads, even if the boost clock is slightly lower. The 36 MB of shared L3 cache could benefit workloads with high cache locality, and the 64 PCIe Gen 4 lanes, while half the AMD count, are still ample for most dual-socket systems. The lower core count also means simpler software licensing in per-core licensing models, though that is not a performance metric.

FAQ

Q: Which processor has the higher multi-core score in Cinebench R23?

A: The AMD EPYC 7D12 scores 36465 in Cinebench R23 multi-core, while the Intel Xeon Gold 6312U scores 35579. The AMD part leads by 2.5%.

Q: Is the AMD EPYC 7D12 faster in single-core tests?

A: Yes. In every single-core Cinebench test (R15, R20, R23), the EPYC 7D12 beats the Xeon Gold 6312U by exactly 2.5%. For example, R23 single-core scores are 5148 for AMD and 5022 for Intel.

Q: What are the core and thread counts for each processor?

A: The AMD EPYC 7D12 has 32 cores and 64 threads. The Intel Xeon Gold 6312U has 24 cores and 48 threads.

Q: How do the cache sizes compare?

A: The EPYC 7D12 has 64 KB of L1 and 512 KB of L2 per core, with 32 MB of L3 per die and 128 MB total L3. The Xeon Gold 6312U has 64 KB of L1 and 1 MB of L2 per core, with 36 MB of shared L3.

Q: Which processor supports more PCIe lanes?

A: The AMD EPYC 7D12 supports 128 PCIe Gen 4 lanes from the CPU, while the Intel Xeon Gold 6312U supports 64 PCIe Gen 4 lanes.

Q: What is the TDP difference between the two?

A: The AMD EPYC 7D12 has an 85W TDP, while the Intel Xeon Gold 6312U has a 185W TDP. The AMD part draws significantly less power.

Specification Differences

The key specification differences come down to core count, clock speeds, cache layout, process node, and I/O. The AMD EPYC 7D12 leads with 32 cores and 64 threads versus Intel's 24 cores and 48 threads. Base clocks are drastically different: 1.10 GHz for AMD versus 2.40 GHz for Intel. Boost clocks are closer but still favor Intel: 3.00 GHz versus 3.60 GHz. TDP is a major divergence, with AMD at 85W and Intel at 185W.

Cache organization differs substantially. The EPYC 7D12 has 512 KB of L2 per core and 32 MB of L3 per die, with a total L3 of 128 MB. The Xeon Gold 6312U has 1 MB of L2 per core and 36 MB of shared L3, with no total L3 figure listed. The process nodes are different as well: 7nm TSMC for AMD versus 10nm Intel for the Xeon. The AMD chip uses four 74 mm² dies with 15,200 million transistors, while the Intel part has no listed transistor count or die size.

PCIe lane count is another clear differentiator: 128 lanes for AMD versus 64 for Intel, both Gen 4. The sockets are incompatible, with AMD using Socket SP3 and Intel using Socket 4189. Release dates also differ, with the EPYC 7D12 launching on 2020-04-13 and the Xeon Gold 6312U on 2021-04-05. Neither has a launch MSRP listed, and neither has an unlocked multiplier or integrated graphics. Both support eight-channel DDR4 memory with 204.8 GB/s bandwidth and ECC.

The Verdict

The data makes a straightforward case for the AMD EPYC 7D12 in pure benchmark performance. It wins every Cinebench test in this comparison, from single-core to multi-core, and across three different Cinebench versions. The 2.5% advantage is consistent and does not vary by workload type. For any application that relies on Cinebench-style rendering performance, the EPYC 7D12 is the better choice according to the numbers.

The Intel Xeon Gold 6312U is not without merit. Its higher clock speeds and larger per-core L2 cache may benefit certain niche workloads, though the benchmark data does not capture any such advantage. The 64 PCIe lanes are still substantial, and the shared 36 MB L3 could help in cache-sensitive scenarios. But none of these potential advantages show up in the measured scores.

The EPYC 7D12 also offers a significant TDP advantage at 85W versus 185W, which has implications for system cooling and power density that the benchmarks do not directly measure. With more cores, more cache, more PCIe lanes, and a lower power draw, the AMD part is the stronger overall package. The Xeon Gold 6312U's only listed advantages are higher base and boost clocks, which do not translate into wins in this test suite. For a builder prioritizing measured benchmark performance, the AMD EPYC 7D12 is the data-backed choice.