AMD EPYC 7313 vs Intel Xeon w5-2545 Comparison

Head-to-Head Benchmarks

The benchmark data presents a fascinating split personality. Across 17 head-to-head tests, the Intel Xeon w5-2545 claims 11 wins while the AMD EPYC 7313 takes 6, but the margins tell a more complex story than the raw win count suggests.

The most dramatic Intel advantage appears in single-threaded performance. In the PassMark single-thread test, the Xeon w5-2545 scores 3573 against the EPYC's 2402, a staggering 48.8% delta. This isn't a subtle edge; it's a generational gap in per-core capability. The Cinebench single-core results reinforce this pattern, with Intel winning R15, R20, and R23 single-core tests by 6%, 6.1%, and 6.1% respectively. The consistency is remarkable — every single-threaded benchmark shows the same roughly 6% advantage, except the PassMark test which shows a much larger gulf.

Floating-point math is another Intel stronghold. The Xeon scores 105619 versus 78,748 on PassMark, a 34.1% advantage. Extended instruction performance also favors Intel heavily: 42,515 versus 33,430, a 27.2% delta. These are the kinds of workloads where Sapphire Rapids' newer architecture appears to flex its muscles.

The multi-core Cinebench results are uniformly in Intel's favor. R15 multicore shows 3511 versus 3310 (6.1%), R20 multicore shows 14,632 versus 13,795 (6.1%), and R23 multicore shows 34,839 versus 32,847 (6.1%). The PassMark multithread test follows the same pattern with 40,988 versus 38,644, also a 6.1% delta. This consistency across different rendering workloads suggests a fundamental throughput advantage rather than a workload-specific quirk.

But the AMD EPYC 7313 has its own victories, and some are lopsided. The most striking is the PassMark physics test, where AMD scores 3899 against Intel's 2445 — a 37.3% advantage for AMD. Prime number finding shows an even larger relative gap: AMD scores 310 versus Intel's 182, a 41.3% delta in AMD's favor. These results hint at algorithmic strengths that don't show up in the more synthetic rendering tests.

Data encryption is another AMD win, with 31,881 versus 26,266, a 17.6% margin. Integer math also favors AMD at 143,648 versus 135,576 (5.6% delta). Data compression is close but AMD edges it out: 525,507 versus 519,755, just 1.1% apart. Random string sorting goes AMD's way too, 57,910 versus 53,620, a 7.4% margin. The EPYC also wins the PassMark multithread test by 6.1% — wait, that's Intel. Let's recheck: the data shows Intel wins PassMark multithread 40,988 to 38,644, so AMD's wins are in physics, prime numbers, encryption, integer math, compression, and string sorting.

Where Each One Wins

The data paints a clear picture of workload segmentation. The Intel Xeon w5-2545 dominates in rendering and single-threaded applications. Every Cinebench test — R15, R20, and R23, both single and multi-core — goes to Intel with a roughly 6% margin. If your work involves 3D rendering, video encoding, or any workload that scales with Cinebench-style performance, the Xeon is the clear choice.

Floating-point math and extended instruction workloads also belong to Intel. The 34.1% advantage in floating-point math and 27.2% edge in extended instructions suggest the Sapphire Rapids architecture handles complex mathematical operations and AVX-style workloads with significantly more efficiency. This could translate to advantages in scientific computing, financial modeling, and machine learning inference tasks that rely heavily on these instruction paths.

The AMD EPYC 7313 carves out its territory in more specialized areas. The physics test win (37.3% advantage) is notable for simulation workloads. The prime number finding result (41.3% advantage) suggests strong integer-heavy algorithmic performance. Data encryption (17.6% edge) points to cryptographic workloads, secure communications, and VPN applications where AMD's implementation appears superior.

Integer math and random string sorting also favor AMD, with margins of 5.6% and 7.4% respectively. These are common in database operations, data processing pipelines, and general server workloads. The compression win, though narrow at 1.1%, adds to the picture of AMD handling data-dense tasks effectively.

The multithread PassMark test goes to Intel by 6.1%, which is interesting because the EPYC has more cores (16 versus 12) and more threads (32 versus 24). Yet Intel still wins the general multithread workload. This suggests Intel's per-core efficiency more than compensates for the core count deficit in mixed workloads.

Architecture Differences

The architectural chasm between these two processors is substantial. The Intel Xeon w5-2545 is built on Sapphire Rapids, a 10 nm process from Intel's own foundry. The AMD EPYC 7313 uses Zen 3 architecture on a 7 nm process from TSMC. The process node difference — 7 nm versus 10 nm — would typically suggest AMD has a density advantage, yet Intel's newer architecture design appears to close that gap in many benchmarks.

Cache configurations diverge sharply. Intel provides 80 KB of L1 cache per core, 2 MB of L2 per core, and 30 MB of shared L3 cache. AMD counters with 64 KB L1 per core, 512 KB L2 per core, and a massive 128 MB of shared L3 cache. The 128 MB L3 is the standout feature — four times Intel's L3 capacity. This likely explains AMD's wins in data-heavy workloads like compression and string sorting, where larger cache can keep more working data on-die.

Core counts differ: Intel offers 12 cores and 24 threads, while AMD provides 16 cores and 32 threads. Despite having 33% more cores, AMD loses most multi-core benchmarks. This confirms Intel's per-core performance advantage, but also suggests the EPYC's extra cores might be underutilized in these particular tests.

Memory architecture shows a clear generational split. Intel supports DDR5 with quad-channel memory and 153.6 GB/s bandwidth. AMD uses DDR4 with eight-channel memory and 204.8 GB/s bandwidth. The EPYC has a 33% memory bandwidth advantage, yet Intel still wins most performance tests — indicating that bandwidth alone doesn't determine outcome.

PCIe capabilities differ: Intel offers Gen 5 with 64 lanes, while AMD provides Gen 4 with 128 lanes. AMD doubles the lane count but uses the older standard. Foundry differences are notable: Intel uses its own 10 nm process, while AMD relies on TSMC's 7 nm. The EPYC 7313's transistor count is listed at 16,600 million across four 81 mm² dies, while Intel's transistor count is not specified.

Specification Differences

The clock speeds reveal the core strategic difference. Intel's base clock is 3.50 GHz with a boost of 4.70 GHz. AMD runs at 3.00 GHz base and 3.70 GHz boost. Intel's 1 GHz boost advantage directly explains its single-thread dominance. The TDP reflects this: Intel draws 210 watts versus AMD's 155 watts, a 55-watt gap that trades power for performance.

Memory support differs by generation: Intel uses DDR5, AMD uses DDR4. The memory bus also diverges — Intel runs quad-channel while AMD runs eight-channel. Bandwidth figures follow: Intel at 153.6 GB/s, AMD at 204.8 GB/s. Both support ECC memory, which is expected for server-class parts.

Sockets are incompatible: Intel uses Socket 4677, AMD uses Socket SP3. PCIe generations differ (Gen 5 for Intel, Gen 4 for AMD), as do lane counts (64 for Intel, 128 for AMD). The release dates show a significant gap — AMD launched on 2021-03-14, while Intel arrived on 2024-08-23. Both are actively in production. The part numbers differ: Intel's is SRN4G, AMD's is 100-000000329100-100000329WOF.

Both processors have locked multipliers and target the server/workstation segment. Neither has integrated graphics. The launch MSRP values are $889 for Intel and $1,083 for AMD. The AMD EPYC 7313 belongs to the EPYC 7003 series, while Intel's series information is not listed.

FAQ

Q: Which processor wins more head-to-head benchmarks?

A: The Intel Xeon w5-2545 wins 11 of 17 head-to-head tests, while the AMD EPYC 7313 wins 6.

Q: What is the largest benchmark margin in either direction?

A: Intel's largest win is 48.8% in PassMark single-thread performance (3573 vs 2402). AMD's largest win is 41.3% in PassMark find prime numbers (310 vs 182).

Q: How do the core counts compare?

A: The AMD EPYC 7313 has 16 cores and 32 threads, while the Intel Xeon w5-2545 has 12 cores and 24 threads. Despite fewer cores, Intel wins the PassMark multithread test by 6.1%.

Q: Which processor has more L3 cache?

A: The AMD EPYC 7313 has 128 MB of shared L3 cache, while the Intel Xeon w5-2545 has 30 MB. This fourfold difference likely contributes to AMD's wins in data-heavy workloads.

Q: What are the memory bandwidth specs?

A: The AMD EPYC 7313 provides 204.8 GB/s over eight-channel DDR4, while the Intel Xeon w5-2545 provides 153.6 GB/s over quad-channel DDR5.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Xeon w5-2545 and AMD EPYC 7313 support ECC memory.

The Verdict

The data suggests the Intel Xeon w5-2545 is the stronger all-around performer for most workloads. It wins the majority of benchmarks, including all Cinebench tests, floating-point math, extended instructions, single-thread performance, and the general multithread test. The consistent 6.1% multi-core advantage across Cinebench versions indicates a reliable throughput edge. The 48.8% single-thread lead makes it the clear choice for lightly-threaded applications that depend on per-core speed.

However, the AMD EPYC 7313 is not a loser — it wins 6 benchmarks with some very large margins. The 41.3% prime number advantage and 37.3% physics lead suggest specialized workloads where AMD's architecture excels. The 17.6% encryption win is noteworthy for security-focused deployments. The larger L3 cache (128 MB versus 30 MB) and higher memory bandwidth (204.8 GB/s versus 153.6 GB/s) give AMD advantages in specific data-dense scenarios.

For users deciding between these two, the choice hinges on workload profile. If the work involves rendering, scientific computing, floating-point-heavy calculations, or general single-threaded performance, the Intel Xeon w5-2545 is the data-backed choice. If the work involves encryption, physics simulation, prime number computation, or data compression, the AMD EPYC 7313 shows clear strengths.

The core count difference (16 vs 12) suggests AMD might be better for heavily parallel workloads that scale linearly with cores, yet the benchmark data shows Intel winning the multithread test anyway. This reflects Intel's per-core efficiency. The power draw difference (210W vs 155W) means Intel uses more energy to achieve its performance, but the launch MSRP of $889 for Intel versus $1,083 for AMD shows Intel achieving superior results at a lower launch price. The data does not lie: Intel wins more tests, wins by larger margins in its strongest areas, and costs less at launch.