AMD EPYC 7351P vs Intel Core i5-14401E Comparison

Where Each One Wins

The benchmark data paints a remarkably one-sided picture. Across all six recorded head-to-head tests, the AMD EPYC 7351P takes every single win. The Intel Core i5-14401E does not manage a single victory in any Cinebench iteration, whether single-core or multi-core. That is a clean sweep, six wins to zero, and the margin is consistent at roughly 21.9% in favor of AMD across nearly every test.

The use-case split, however, is not as simple as the win tally suggests. The EPYC 7351P is a 16-core, 32-thread server processor built for sustained multi-threaded workloads. Its 170 TDP and eight-channel DDR4 memory bus point toward rack-mounted density and virtualized environments. The Core i5-14401E, by contrast, is a 6-core, 12-thread desktop part with a 65 TDP, dual-channel memory, and a much higher boost clock of 4.70 GHz versus 2.90 GHz on the AMD. The data shows the AMD wins all recorded tests, but the Intel part was designed for a different class of work, one where raw core count matters less than responsiveness and power efficiency.

The Cinebench R23 multicore result illustrates the gap: the EPYC scores 22,135 against the i5's 18,161, a 21.9% advantage. That is the kind of margin that matters in render farms or batch compilation jobs. But the single-core results tell a subtler story. The EPYC leads 3,125 to 2,564 in Cinebench R23 single-core, a 21.9% edge, which is surprising given the Intel part's much higher boost frequency. The recorded data does not show any workload where the i5-14401E comes out ahead, so the use-case split must be inferred from specifications rather than benchmark victories. The Intel chip's integrated UHD Graphics 730, lower TDP, and desktop socket make it suitable for compact systems where the EPYC's server platform would be overkill. The AMD part has no integrated graphics at all, so it requires a discrete GPU for any display output.

Architecture Differences

The two processors come from fundamentally different design philosophies. The EPYC 7351P uses AMD's Zen architecture, codenamed Naples, built on a 14 nm process at GlobalFoundries. It is part of the EPYC 7001 series, a server-focused lineup that prioritizes core density and memory bandwidth. The transistor count is listed at 4,800 million on a 213 mm² die. The Core i5-14401E, meanwhile, is a Raptor Lake Refresh part, using the Raptor Lake architecture on Intel's 10 nm process, with a die size of 215 mm². Intel does not list a transistor count for this chip in the recorded data.

The cache layouts diverge sharply. The EPYC has 96 KB of L1 per core, 512 KB of L2 per core, and a massive 64 MB shared L3 cache. The Core i5 has 80 KB of L1 per core, 1.25 MB of L2 per core, and only 20 MB of shared L3. The EPYC's larger L3 is typical of server parts that need to keep many threads fed with data. The Intel chip's larger per-core L2, 1.25 MB versus 512 KB, reflects a desktop design where individual cores may need faster access to working sets.

Memory architecture is another major divide. The EPYC supports DDR4 across an eight-channel memory bus, with a recorded memory bandwidth of 170.6 GB/s. The Core i5 supports both DDR4 and DDR5, but only across a dual-channel bus, and no bandwidth figure is recorded for it. Both processors support ECC memory, which is notable for a desktop part like the i5-14401E. PCIe capabilities also differ: the EPYC uses Gen 3, while the Core i5 supports Gen 5 with 16 lanes from the CPU. The EPYC's socket is AMD Socket SP3, a server platform, while the Intel part uses Socket 1700.

The EPYC has an unlocked multiplier, meaning it can be overclocked, despite its server positioning. The Core i5 has a locked multiplier. The EPYC was released in 2017, while the Core i5 arrived in 2024, a seven-year gap that explains the architectural differences. The production status for both is listed as active.

Head-to-Head Benchmarks

The recorded head-to-head results are unusually consistent. Every Cinebench test, from R15 through R23, shows the EPYC 7351P winning by almost exactly 21.9%. The only exception is Cinebench R15 single-core, where the delta is 21.7%, and Cinebench R15 multi-core, which also sits at 21.9%. This uniformity suggests the performance gap is structural, driven by the EPYC's higher core count and larger cache, rather than workload-specific quirks.

Starting with the multi-core tests, the EPYC scores 2,231 in Cinebench R15 multi-core against 1,830 for the Core i5. In Cinebench R20 multi-core, the gap widens in absolute terms: 9,296 versus 7,627. The R23 multi-core result is the largest absolute difference, 22,135 versus 18,161, a 3,974-point margin. These are substantial leads for a processor with more than double the cores and threads.

The single-core tests are more surprising. The EPYC leads in Cinebench R15 single-core with 314 versus 258, a 21.7% edge. In R20 single-core, it scores 1,312 against 1,076. In R23 single-core, the EPYC posts 3,125 versus 2,564. Given that the Core i5 has a 4.70 GHz boost clock and the EPYC tops out at 2.90 GHz, one might expect the Intel part to win single-threaded tests. The recorded data contradicts that expectation. The EPYC's Zen architecture and larger L3 cache apparently compensate for the clock deficit in these specific workloads.

The average benchmark scores reinforce the pattern. The EPYC has an average benchmark score of 5,469, while the Core i5 sits at 5,253. The EPYC's nearest rivals include the Intel Xeon W-1290P at 5,443 (0.5% behind the EPYC) and the AMD Ryzen Threadripper 1920 at 5,425 (0.8% behind). The Core i5's nearest rivals include the Intel Xeon E5-2699A v4 at 5,259 (0.1% ahead of the i5) and the Intel Core i7-11700B at 5,241 (0.2% behind). The two processors occupy similar percentile territory, with the EPYC at the 61st percentile and the Core i5 at the 60th, despite the EPYC's clean sweep in direct comparisons.

Specification Differences

The specification sheet highlights how differently these two chips are engineered. The EPYC has 16 cores and 32 threads, while the Core i5 has 6 cores and 12 threads. The base clocks are close, 2.40 GHz for the EPYC and 2.50 GHz for the Core i5, but the boost clocks diverge dramatically: 2.90 GHz versus 4.70 GHz. The TDP difference is equally stark, 170 watts for the EPYC versus 65 watts for the Core i5.

The memory support differs in kind as well as width. The EPYC uses DDR4 only, across eight channels, with a recorded bandwidth of 170.6 GB/s. The Core i5 supports both DDR4 and DDR5, across two channels, with no bandwidth figure recorded. Both support ECC, but the EPYC's memory system is clearly built for maximum throughput in multi-socket server configurations.

Cache capacities favor the AMD part in L1 and L3, but the Intel chip has a larger L2 per core. The EPYC's L1 is 96 KB per core versus 80 KB per core on the Core i5. The L2 is 512 KB per core on the EPYC versus 1.25 MB per core on the Core i5. The L3 is 64 MB shared on the EPYC versus 20 MB shared on the Core i5. The total L3 is not recorded for either chip.

The platform differences are significant. The EPYC uses AMD Socket SP3, while the Core i5 uses Intel Socket 1700. The EPYC's PCIe is Gen 3, while the Core i5 has Gen 5 with 16 CPU lanes. The EPYC has no integrated graphics, while the Core i5 includes UHD Graphics 730. The market segments reflect the intended use: the EPYC is listed as Server/Workstation, the Core i5 as Desktop. The multiplier is unlocked on the EPYC but locked on the Core i5. The release dates are June 2017 for the EPYC and June 2024 for the Core i5.

FAQ

Q: Which processor wins all recorded benchmark comparisons?

A: The AMD EPYC 7351P wins all six head-to-head Cinebench tests, with a 21.9% lead in every test except Cinebench R15 single-core, where its lead is 21.7%.

Q: How do the core counts compare?

A: The EPYC 7351P has 16 cores and 32 threads, while the Core i5-14401E has 6 cores and 12 threads.

Q: Does the Core i5-14401E support ECC memory?

A: Yes, the Core i5-14401E supports ECC memory, as does the EPYC 7351P.

Q: What is the single-core performance difference in Cinebench R23?

A: The EPYC 7351P scores 3,125 in Cinebench R23 single-core, while the Core i5-14401E scores 2,564, a 21.9% advantage for AMD.

Q: Which processor has integrated graphics?

A: Only the Core i5-14401E has integrated graphics, specifically UHD Graphics 730. The EPYC 7351P has no integrated graphics listed.

Q: How do the average benchmark scores compare?

A: The EPYC 7351P has an average benchmark score of 5,469, while the Core i5-14401E averages 5,253. The EPYC sits at the 61st percentile of all CPUs, the Core i5 at the 60th.

The Verdict

The data supports a clear conclusion for multi-threaded workloads: the AMD EPYC 7351P is the stronger processor. Its 21.9% lead across every Cinebench test, combined with 16 cores, 32 threads, and 64 MB of L3 cache, makes it the obvious choice for rendering, compilation, or any workload that scales with core count. The eight-channel DDR4 memory bus, with 170.6 GB/s of bandwidth, further reinforces its server/workstation positioning. The EPYC's average benchmark score of 5,469 and 61st percentile ranking put it slightly ahead of the Core i5's 5,253 average and 60th percentile, but the direct comparison is far more lopsided than those aggregate numbers suggest.

The Intel Core i5-14401E is not without merit, but the recorded data shows no scenario where it wins. Its advantages are indirect: a 65 TDP versus 170, a 4.70 GHz boost clock, integrated UHD Graphics 730, support for both DDR4 and DDR5, and PCIe Gen 5. For a desktop user who needs ECC memory and a low-power footprint, the i5 is the more practical platform. The locked multiplier is a limitation for overclockers, but the EPYC's unlocked multiplier is of limited use on a server platform.

Buyers should choose based on platform needs rather than benchmark scores. The EPYC 7351P is for server racks, virtualized hosts, and workstations that need massive memory bandwidth and core density. The Core i5-14401E is for desktop builds where the EPYC's SP3 platform would be impractical. The data shows the EPYC wins every recorded test, but the i5's lower power draw, newer architecture, and integrated graphics make it the sensible pick for a different class of machine. The verdict, strictly from the data, is that the EPYC 7351P is the performance leader, while the Core i5-14401E is the efficiency-focused desktop alternative.