AMD EPYC 4344P vs Intel Xeon w3-2535 Comparison

Head-to-Head Benchmarks

The recorded head-to-head data shows a clear split between the two processors across seventeen benchmark tests. The AMD EPYC 4344P takes the majority of wins, claiming thirteen victories, while the Intel Xeon w3-2535 secures four. The margin of victory varies widely, from razor-thin differences to substantial gaps.

Starting with the Cinebench suite, the AMD EPYC 4344P wins every iteration but by a remarkably consistent margin. In Cinebench R15 multicore, it scores 2886 against the Xeon's 2871, a delta of -0.5%. The single-core R15 test shows the same pattern: 407 versus 405, again -0.5%. This consistency carries through Cinebench R20 and R23, where the EPYC posts 12027 and 28636 in multicore, while the Xeon records 11965 and 28489 respectively. Every Cinebench result, whether single-core or multicore, lands at exactly -0.5% in favor of the AMD part. The R20 single-core test shows 1697 against 1689, and R23 single-core shows 4042 against 4022. These are narrow margins, but they are uniform across the entire Cinebench family.

The Passmark results tell a more dramatic story. The Intel Xeon w3-2535 dominates in floating-point math, scoring 83582 against the EPYC's 63309, a 32% advantage. This is the single largest delta in the entire comparison. Extended instructions also favor Intel strongly, with a score of 34318 versus 29582, a 16% lead. Data compression goes to Intel as well, 414399 against 402701, a 2.9% edge. The multithread test shows Intel ahead by a hair, 33517 versus 33325, a 0.6% margin.

The AMD EPYC 4344P's wins are spread across several workloads. Data encryption shows a notable 14.5% lead, scoring 24476 against the Xeon's 20931. Random string sorting favors AMD by 11.4%, with scores of 49001 and 43413. Find prime numbers goes to AMD by 10.3%, 165 versus 148. Physics testing gives AMD a 6.2% edge, 1987 against 1863. Single-thread performance favors AMD by 2.2%, 3526 versus 3447, and integer math is nearly tied, with AMD at 105779 and Intel at 104596, a 1.1% difference.

Where Each One Wins

The data points to distinct workload profiles. The Intel Xeon w3-2535 is the clear choice for floating-point-heavy tasks. The 32% lead in floating-point math is substantial and suggests that scientific computing, simulations, or any workload relying heavily on FPU throughput will benefit from the Intel part. Extended instructions, which typically cover SIMD and specialized instruction set usage, also favor Intel by 16%, reinforcing this pattern for vectorized or instruction-dense workloads. Data compression is another Intel strength, with a 2.9% advantage that could matter for storage or archival applications.

The AMD EPYC 4344P wins where latency and single-thread responsiveness matter. The consistent 0.5% edge across all Cinebench generations, both single-core and multicore, indicates a slightly more efficient execution per clock. The 2.2% single-thread Passmark advantage, along with the 6.2% physics win, points to better performance in lightly threaded or latency-sensitive tasks. Encryption is a notable AMD strength at 14.5%, which could be significant for security-focused server workloads. Random string sorting at 11.4% ahead suggests AMD handles memory-bound or pointer-chasing patterns better, and prime number finding at 10.3% ahead indicates strong integer arithmetic in certain patterns, even though the overall integer math test is nearly tied.

Multithread performance is effectively a wash. The Intel part wins by 0.6% in the Passmark multithread test, while AMD wins every Cinebench multicore test by 0.5%. This suggests that the two processors deliver near-identical throughput in heavily threaded workloads, despite the Xeon having 10 cores and 20 threads versus the EPYC's 8 cores and 16 threads.

Architecture Differences

The two processors come from fundamentally different design approaches. The Intel Xeon w3-2535 is built on Sapphire Rapids, using a 10 nm process at Intel's own foundry. It packs 10 cores and 20 threads, with a cache hierarchy that includes 80 KB of L1 per core, 2 MB of L2 per core, and a shared 26.25 MB of L3 cache. The memory subsystem is quad-channel DDR5, delivering 140.8 GB/s of bandwidth. PCIe connectivity is extensive, with 64 Gen 5 lanes available from the CPU.

The AMD EPYC 4344P uses Zen 4 architecture, codenamed Raphael, fabricated on a 5 nm process at TSMC. It features 8 cores and 16 threads, with 64 KB of L1 per core, 1 MB of L2 per core, and a larger shared L3 cache at 32 MB. The memory bus is dual-channel DDR5, which provides 83.2 GB/s of bandwidth, notably less than the Intel part. PCIe lanes are also fewer, at 28 Gen 5 lanes. The AMD chip includes integrated Radeon Graphics, while the Intel Xeon has no integrated graphics. The AMD processor carries 6,570 million transistors on a 71 mm² die, while the Intel part's transistor count and die size are not recorded in the database.

The process node difference is significant. AMD's 5 nm TSMC process is denser and more modern than Intel's 10 nm node, which helps explain the EPYC's higher clock speeds despite lower power consumption. The cache configurations also differ philosophically: Intel uses a larger per-core L2 but a smaller shared L3, while AMD uses a smaller per-core L2 and a larger shared L3. This could influence how each processor handles workloads with high inter-core communication versus those that rely on per-core data locality.

Specification Differences

The core count differs: the Intel Xeon w3-2535 has 10 cores and 20 threads, while the AMD EPYC 4344P has 8 cores and 16 threads. Clock speeds favor AMD, with a base clock of 3.80 GHz and boost of 5.30 GHz, against Intel's 3.50 GHz base and 4.60 GHz boost. Thermal design power differs substantially, with Intel at 185 W and AMD at 65 W. This is a major efficiency gap, though no power consumption measurements are included in the database.

The sockets are incompatible: Intel uses Socket 4677, while AMD uses Socket AM5. Memory channel count differs, with Intel supporting quad-channel DDR5 and AMD supporting dual-channel DDR5. Memory bandwidth reflects this, at 140.8 GB/s for Intel and 83.2 GB/s for AMD. PCIe lane counts also differ, with Intel offering 64 Gen 5 lanes and AMD offering 28 Gen 5 lanes.

The cache structure varies as described above. The Intel part's L3 is 26.25 MB shared, while AMD's is 32 MB shared. Per-core L1 and L2 are larger on Intel: 80 KB versus 64 KB for L1, and 2 MB versus 1 MB for L2. Both support DDR5 memory and both have ECC memory enabled. Integrated graphics are present only on the AMD chip, which includes Radeon Graphics; the Intel part has none. Both processors are locked, with no unlocked multiplier.

The release dates differ: the AMD EPYC 4344P launched on 2024-05-20, while the Intel Xeon w3-2535 launched on 2024-08-23. The Intel part's launch MSRP is $739, and the AMD part's launch MSRP is $329. Both are active production parts. The AMD part belongs to the EPYC 4004 series, while the Intel part has no series designation recorded.

FAQ

Q: Which processor has more cores?

A: The Intel Xeon w3-2535 has 10 cores and 20 threads, while the AMD EPYC 4344P has 8 cores and 16 threads.

Q: How do they compare in Cinebench R23 multicore?

A: The AMD EPYC 4344P scores 28636, while the Intel Xeon w3-2535 scores 28489, giving AMD a 0.5% advantage.

Q: Which processor has the higher boost clock?

A: The AMD EPYC 4344P boosts to 5.30 GHz, while the Intel Xeon w3-2535 boosts to 4.60 GHz.

Q: What is the biggest single benchmark difference?

A: In Passmark floating-point math, the Intel Xeon w3-2535 scores 83582 against the AMD EPYC 4344P's 63309, a 32% lead for Intel.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Xeon w3-2535 and the AMD EPYC 4344P have ECC memory support enabled.

Q: Which processor has more PCIe lanes?

A: The Intel Xeon w3-2535 offers 64 Gen 5 lanes, while the AMD EPYC 4344P offers 28 Gen 5 lanes.

The Verdict

The data supports a workload-based selection rather than a clear overall winner. For floating-point intensive applications, the Intel Xeon w3-2535 is the obvious pick. The 32% lead in floating-point math and 16% lead in extended instructions are decisive. The larger L3 cache on AMD does not compensate in these tests. The Intel part also provides substantially more PCIe lanes, 64 versus 28, and higher memory bandwidth at 140.8 GB/s versus 83.2 GB/s, which matters for systems with many expansion cards or heavy memory traffic.

For general server workloads, the AMD EPYC 4344P is the more balanced choice. It wins the majority of benchmarks, including all Cinebench tests, encryption, physics, and single-thread performance. The 65 W TDP compared to Intel's 185 W suggests lower operating costs, though no power measurements are recorded. The higher boost clock of 5.30 GHz versus 4.60 GHz likely contributes to the single-thread wins. The integrated Radeon Graphics on the AMD part adds display output capability without a separate GPU, which the Intel part lacks.

The multithread performance is essentially tied, so core count differences do not translate into throughput advantages. The Intel part's 10 cores and 20 threads do not overcome the AMD part's higher clocks and more efficient architecture. The per-core cache advantages of Intel, with larger L1 and L2, do not produce wins in the latency-sensitive tests, which go to AMD.

For a system builder prioritizing raw floating-point throughput, PCIe expansion, or maximum memory bandwidth, the Intel Xeon w3-2535 is the data-supported choice. For a balanced server processor with better single-thread performance, lower power draw, and wins across most benchmark categories, the AMD EPYC 4344P is the one to select. The nearly identical average benchmark scores, with Intel at 46653 and AMD at 45122, reinforce that this is a close competition decided by specific workload requirements rather than overall capability.