CPU Comparison

The Intel Xeon E-2434 and AMD EPYC 7251 are both server/workstation processors, but they represent vastly different eras of design philosophy. The data shows the Xeon E-2434 winning all six head-to-head Cinebench comparisons, yet the margins are remarkably thin. In Cinebench R23 multi-core, the Intel part scores 12,823 against the EPYC’s 12,694, a delta of just 1%. Single-core results tell the same story: 1,810 versus 1,792, also a 1% difference. The largest gap anywhere is in Cinebench R15 single-core, where the Xeon leads by 1.1% (182 vs 180). For a processor released six years later, this is a surprisingly close contest, and it highlights how the EPYC’s extra cores compensate for its much lower clock speeds.

Head-to-Head Benchmarks

The benchmark data is unambiguous: the Intel Xeon E-2434 wins every single test, but the victories are narrow. Across all six Cinebench runs, the winning margin never exceeds 1.1%. In multi-core workloads, the Xeon E-2434 scores 1,292 in R15, 5,385 in R20, and 12,823 in R23. The EPYC 7251 counters with 1,279, 5,331, and 12,694 respectively. The consistent ~1% lead in multi-core is notable because the EPYC has double the cores and threads (8 cores/16 threads vs 4 cores/8 threads). This suggests the Xeon’s per-core efficiency is substantially higher, allowing it to overcome a 2x core disadvantage.

Single-core performance follows the same pattern. The Xeon E-2434 posts 182 in R15, 760 in R20, and 1,810 in R23. The EPYC 7251 trails with 180, 752, and 1,792. The deltas are 1.1%, 1.1%, and 1% respectively. These differences are within the margin of run-to-run variance, but they do show a consistent edge for Intel. The average benchmark score reinforces this: the Xeon E-2434 averages 3,709 versus the EPYC’s 3,671. Both processors sit at the 56th percentile among all CPUs, meaning they are statistically peers in overall performance. The nearest rivals for the Intel part include the AMD EPYC 7301 (0.6% ahead) and the Intel Core i9-10980HK (0.1% ahead), while the EPYC 7251’s closest competitor is the AMD Ryzen 7 PRO 1700X (0.1% behind) and the Intel Core i3-13100E (0.1% ahead). In practical terms, these two CPUs are effectively tied in raw compute, despite the architectural gulf between them.

Architecture Differences

The architectural contrast is stark. The Intel Xeon E-2434 is built on Raptor Lake (Raptor Lake-S) using Intel’s 10 nm process, with a die size of 163 mm². It features 4 cores and 8 threads, with a base clock of 3.40 GHz and a boost clock of 5.00 GHz. Cache is organized as 80 KB L1 per core, 1.25 MB L2 per core, and 12 MB shared L3. The AMD EPYC 7251, by contrast, uses the original Zen architecture (Naples) on GlobalFoundries’ 14 nm process, with a much larger 213 mm² die containing 4,800 million transistors. It offers 8 cores and 16 threads, but clocks are far lower: 2.10 GHz base and 2.90 GHz boost. Cache layout is 96 KB L1 per core, 512 KB L2 per core, and 32 MB shared L3.

Memory subsystems diverge completely. The Xeon E-2434 supports DDR5 on a dual-channel bus, yielding 76.8 GB/s of bandwidth. The EPYC 7251 uses DDR4 on an eight-channel bus, delivering exactly double the bandwidth at 153.6 GB/s. Both support ECC memory, which is expected for server parts. PCIe connectivity also differs: the Intel chip provides Gen 5 with 16 lanes (CPU only), while the EPYC offers Gen 3 without a lane count specified in the data. The Xeon E-2434 is a locked multiplier part, whereas the EPYC 7251 has an unlocked multiplier. The EPYC’s release date is 2017-06-28, while the Xeon’s is 2023-12-13, a gap of over six years. The Intel part is on Socket 1700; the AMD part uses Socket SP3. Both are listed as Active in production status.

FAQ

Q: Which processor has higher single-core performance?

A: The Intel Xeon E-2434 wins every single-core test. In Cinebench R23 single-core, it scores 1,810 versus 1,792 for the AMD EPYC 7251, a 1% advantage. The R15 and R20 single-core tests show the same pattern, with the Xeon leading by 1.1% in both.

Q: How does the EPYC 7251 compensate for its lower clock speeds?

A: The EPYC 7251 has 8 cores and 16 threads, double the Xeon E-2434’s 4 cores and 8 threads. It also has 32 MB of shared L3 cache versus 12 MB on the Intel part, and its eight-channel DDR4 memory bus provides 153.6 GB/s of bandwidth, exactly double the Xeon’s 76.8 GB/s.

Q: Are these processors comparable in overall performance?

A: Yes. The Xeon E-2434 has an average benchmark score of 3,709, and the EPYC 7251 averages 3,671. Both are at the 56th percentile among all CPUs. The Xeon’s nearest rival, the AMD EPYC 7301, is only 0.6% ahead, while the EPYC 7251’s closest rival, the AMD Ryzen 7 PRO 1700X, is 0.1% behind.

Q: What is the power consumption difference?

A: The Intel Xeon E-2434 has a TDP of 55 watts, while the AMD EPYC 7251 has a TDP of 120 watts. This means the Intel part draws less than half the power of the AMD chip, despite delivering slightly higher benchmark scores.

Q: Which processor supports faster memory?

A: The Intel Xeon E-2434 supports DDR5 on a dual-channel bus. The AMD EPYC 7251 supports DDR4 on an eight-channel bus. The EPYC’s total memory bandwidth is higher at 153.6 GB/s versus 76.8 GB/s, due to the eight-channel configuration.

Q: Are both processors still in production?

A: Yes, both the Intel Xeon E-2434 and the AMD EPYC 7251 are listed with a production status of “Active” in the data.

Specification Differences

The two processors differ on nearly every specification field. Core and thread counts are the most obvious divergence: the Xeon E-2434 has 4 cores and 8 threads, while the EPYC 7251 has 8 cores and 16 threads. Clock speeds are reversed in emphasis: the Intel part’s base clock is 3.40 GHz and boost is 5.00 GHz, versus 2.10 GHz and 2.90 GHz for AMD. TDP is 55 watts for Intel and 120 watts for AMD. The socket differs: Intel Socket 1700 versus AMD Socket SP3. Architecture is Raptor Lake versus Zen (Naples), on 10 nm Intel versus 14 nm GlobalFoundries. The die size is 163 mm² for Intel and 213 mm² for AMD, with the AMD part having 4,800 million transistors (Intel’s count is not listed).

Cache hierarchies are structured differently. The Xeon E-2434 has 80 KB L1 per core, 1.25 MB L2 per core, and 12 MB shared L3. The EPYC 7251 has 96 KB L1 per core, 512 KB L2 per core, and 32 MB shared L3. Memory support is DDR5 dual-channel for Intel versus DDR4 eight-channel for AMD, with bandwidth of 76.8 GB/s versus 153.6 GB/s. PCIe is Gen 5 with 16 lanes for Intel, Gen 3 for AMD. The Xeon has a locked multiplier; the EPYC is unlocked. Release dates are 2023-12-13 for Intel and 2017-06-28 for AMD. The Intel part has a launch MSRP of $293; the AMD part has no launch MSRP listed. Both support ECC memory and have no integrated graphics. The Intel part number is SRMXC; the AMD part number is PS7251BFV8SAFPS7251BFAFWOF.

The Verdict

The data presents a clear verdict for most buyers: the Intel Xeon E-2434 is the better processor for raw performance, winning all six benchmarks with margins of 1% to 1.1%. It achieves this with a 55-watt TDP, which is less than half the EPYC 7251’s 120 watts. The Xeon also offers newer platform features: DDR5 memory, PCIe Gen 5, and a 2023 release date. The EPYC 7251’s advantages are structural: double the cores and threads, double the memory bandwidth (153.6 GB/s), and triple the L3 cache (32 MB vs 12 MB). However, none of these translate into benchmark wins in this test suite. The EPYC’s much lower clock speeds (2.10 GHz base, 2.90 GHz boost) hold it back, despite having twice the core count. For workloads that are heavily multi-threaded and memory-bandwidth sensitive, the EPYC’s eight-channel DDR4 could theoretically shine, but the Cinebench results show it still loses to the Xeon in multi-core tests. The tie in percentile (56th for both) and the near-identical average scores (3,709 vs 3,671) suggest the EPYC is competitive in aggregate, but the Xeon wins everywhere it matters in this comparison.

Where Each One Wins

The Intel Xeon E-2434 wins every benchmark recorded here: all three Cinebench versions, both multi-core and single-core. Its largest victory is 1.1% in Cinebench R15 single-core (182 vs 180). The Intel part also wins decisively on power efficiency, with a 55-watt TDP versus 120 watts for the EPYC. This makes it the obvious choice for dense server environments where power draw and cooling are constraints. Its newer platform (DDR5, PCIe Gen 5, 2023 release) provides a longer upgrade path and access to modern features. The Xeon’s 5.00 GHz boost clock is a full 2.10 GHz higher than the EPYC’s 2.90 GHz, which explains its single-core dominance.

The AMD EPYC 7251 does not win any benchmark in this dataset, but it holds structural advantages that matter outside Cinebench. Its 8 cores and 16 threads provide more parallel headroom for workloads that scale beyond four cores. The eight-channel memory bus delivers 153.6 GB/s, which is double the Xeon’s bandwidth and could benefit memory-bound applications like large databases or virtualization. The 32 MB L3 cache is nearly triple the Xeon’s 12 MB, reducing latency for working sets that fit in cache. The unlocked multiplier is a feature for those who want to overclock, though the base clock is low. In scenarios where raw core count and memory bandwidth are more important than clock speed or power efficiency, the EPYC 7251 remains a viable option, especially given its older but still active production status. However, based strictly on the benchmark data, the Xeon E-2434 is the winner across the board.