AMD EPYC 7543P vs AMD Ryzen 5 40 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive, one-sided outcome in the four shared Cinebench tests. The AMD EPYC 7543P wins every head-to-head comparison, often by a massive margin. The largest gap appears in Cinebench R23 multi-core, where the EPYC 7543P scores 56,683 against the Ryzen 5 40's 4,841. That is a delta of 1070.9%, meaning the server processor delivers more than ten times the multi-threaded rendering performance. In Cinebench R15 multi-core, the EPYC 7543P scores 5,713 versus 790, a 623.2% advantage, which reinforces the pattern that core-heavy workloads are entirely dominated by the 32-core part.

Single-core results also favor the EPYC 7543P, though the relative gaps are slightly smaller in percentage terms. In Cinebench R23 single-core, the EPYC 7543P scores 8,002 against 1,150, a 595.8% lead. In Cinebench R15 single-core, the EPYC 7543P scores 806 versus 165.5, a 387% advantage. These numbers are notable because the Ryzen 5 40 has a higher boost clock (4.30 GHz versus 3.70 GHz), yet the EPYC 7543P still wins single-threaded tests by a wide margin. This suggests that the Zen 3 architecture in the EPYC part, combined with its much larger cache and server-class memory subsystem, more than compensates for the lower clock speed.

The overall average benchmark scores place the two processors close together in the database's aggregate ranking. The EPYC 7543P has an average score of 16,395, while the Ryzen 5 40 averages 15,882. That is only a 3.2% difference in the aggregate metric, which is misleading given the extreme divergence in the Cinebench tests. The reason for this apparent contradiction is that the Ryzen 5 40 has a much broader benchmark suite recorded, including PassMark tests for compression, encryption, and math operations, which pull its average upward relative to its Cinebench results. The EPYC 7543P only has Cinebench entries in the database, so its average reflects purely rendering workloads.

Both processors sit at the 70th percentile among all CPUs in the database, which places them in the same overall performance tier despite their completely different market positions. The nearest rivals for the EPYC 7543P include the AMD Ryzen 5 4600H (average score 16,341, delta 0.3%), the Intel Core i7-1260U (16,320, delta 0.5%), the Intel Core i5-10600KF (16,228, delta 1%), and the Intel Core i7-10850H (16,204, delta 1.2%). For the Ryzen 5 40, the nearest rivals are the AMD EPYC 75F3 (15,859, delta 0.1%), the Intel Core Ultra 5 134U (15,910, delta -0.2%), the AMD EPYC 9354P (15,826, delta 0.4%), and the AMD EPYC 9334 (15,940, delta -0.4%). This means that in the database's aggregate scoring, the EPYC 7543P is effectively tied with mobile and desktop parts, while the Ryzen 5 40 is effectively tied with several EPYC server chips.

Architecture Differences

The EPYC 7543P is built on Zen 3 architecture with the codename Milan, manufactured on a 7 nm process at TSMC. It belongs to the EPYC 7003 series and targets the server and workstation segment. The Ryzen 5 40 uses Zen 2 architecture with the codename Mendocino, manufactured on a 6 nm process, also at TSMC, but it is a mobile part. The process node difference is small (6 nm versus 7 nm), but the architectural generation gap is more significant: Zen 3 offers higher instructions per clock compared to Zen 2, which helps explain the EPYC's single-core dominance despite its lower boost clock.

The core and thread counts differ fundamentally. The EPYC 7543P has 32 cores and 64 threads, while the Ryzen 5 40 has 4 cores and 8 threads. This 8x core advantage is the primary driver of the multi-core benchmark results. Cache configurations also diverge sharply. Both processors have 64 KB of L1 per core and 512 KB of L2 per core, but the L3 cache is dramatically different: the EPYC 7543P has 256 MB shared L3, while the Ryzen 5 40 has only 4 MB shared L3. That is a 64x difference in last-level cache, which heavily influences workloads that reuse data sets.

Memory support is another major separation point. The EPYC 7543P uses DDR4 memory over an eight-channel bus, providing 204.8 GB/s of bandwidth. The Ryzen 5 40 uses LPDDR5 over a dual-channel bus, providing 88.0 GB/s. The EPYC's memory bandwidth is 2.3x higher, which is critical for server workloads that stream large data sets. The EPYC also supports ECC memory, while the Ryzen 5 40 does not. PCIe capabilities differ as well: the EPYC 7543P offers Gen 4 with 128 lanes (CPU only), while the Ryzen 5 40 offers Gen 3 with 4 lanes (CPU only). The EPYC has no integrated graphics, whereas the Ryzen 5 40 includes Radeon 610M integrated graphics.

The transistor count and die size are only recorded for the EPYC 7543P: 33,200 million transistors across a die size of 8x 81 mm². The Ryzen 5 40 has a single 100 mm² die, but its transistor count is not listed in the database. The socket types are incompatible: the EPYC uses AMD Socket SP3, and the Ryzen 5 40 uses AMD Socket FT6. The TDP figures are also in different leagues: 225 watts for the EPYC versus 15 watts for the Ryzen 5 40, reflecting the server part's power-hungry design versus the mobile part's efficiency focus. Neither processor has an unlocked multiplier.

Where Each One Wins

The EPYC 7543P wins every recorded benchmark in the head-to-head comparison, but the practical use cases are clear from the data. For multi-threaded rendering, compilation, or scientific computing, the EPYC 7543P is in a different class. Its Cinebench R23 multi-core score of 56,683 is 1070.9% higher than the Ryzen 5 40's 4,841, so any workload that scales across cores will see a massive advantage. The 256 MB L3 cache and eight-channel DDR4 memory with 204.8 GB/s bandwidth make it suitable for data-heavy server tasks like virtualization, database hosting, or high-performance computing where memory bandwidth and cache capacity are as important as raw core count.

The Ryzen 5 40 wins in the context of its intended market segment: mobile computing. While it loses all four Cinebench tests, its 15-watt TDP and integrated Radeon 610M graphics make it suitable for thin-and-light laptops where power consumption and heat dissipation are constrained. Its PassMark results, which are not recorded for the EPYC 7543P, show strengths in specific single-threaded and math-oriented tasks: the PassMark single-thread score is 2,477, the integer math score is 31,598, and the floating-point math score is 15,194. These numbers indicate that for everyday productivity, web browsing, and light content creation, the Ryzen 5 40 is functional despite its low core count.

The data also shows that the Ryzen 5 40 holds its own in the aggregate database ranking, with an average benchmark score of 15,882 versus the EPYC's 16,395. This is because the mobile part has a more diverse benchmark portfolio, including data compression (141,533) and data encryption (6,646) scores that are not available for the EPYC. In a purely database-average sense, the two are nearly equivalent, but that equivalence disappears when comparing only the overlapping Cinebench workloads, where the EPYC is overwhelmingly superior. For a buyer choosing between these two, the decision hinges entirely on the target platform: a server rack or a laptop chassis.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7543P has 32 cores and 64 threads. The AMD Ryzen 5 40 has 4 cores and 8 threads.

Q: How much faster is the EPYC 7543P in multi-core rendering?

A: In Cinebench R23 multi-core, the EPYC 7543P scores 56,683 versus 4,841 for the Ryzen 5 40, a delta of 1070.9%. In Cinebench R15 multi-core, the EPYC scores 5,713 versus 790, a delta of 623.2%.

Q: Does the Ryzen 5 40 win any benchmark in the head-to-head comparison?

A: No. The recorded data shows 4 wins for the EPYC 7543P and 0 wins for the Ryzen 5 40 across the four shared Cinebench tests.

Q: What are the cache differences between the two?

A: Both have 64 KB L1 and 512 KB L2 per core. The EPYC 7543P has 256 MB shared L3, while the Ryzen 5 40 has 4 MB shared L3.

Q: Which processor supports ECC memory?

A: The EPYC 7543P supports ECC memory. The Ryzen 5 40 does not.

Q: What is the memory bandwidth for each processor?

A: The EPYC 7543P has 204.8 GB/s over an eight-channel DDR4 bus. The Ryzen 5 40 has 88.0 GB/s over a dual-channel LPDDR5 bus.

Specification Differences

The recorded specifications show the following differences between the two processors:

• Architecture: EPYC 7543P uses Zen 3 (Milan), Ryzen 5 40 uses Zen 2 (Mendocino).
• Process node: EPYC 7543P is 7 nm, Ryzen 5 40 is 6 nm.
• Cores: EPYC 7543P has 32, Ryzen 5 40 has 4.
• Threads: EPYC 7543P has 64, Ryzen 5 40 has 8.
• Boost clock: EPYC 7543P is 3.70 GHz, Ryzen 5 40 is 4.30 GHz.
• TDP: EPYC 7543P is 225 watts, Ryzen 5 40 is 15 watts.
• Socket: EPYC 7543P uses AMD Socket SP3, Ryzen 5 40 uses AMD Socket FT6.
• L3 cache: EPYC 7543P has 256 MB shared, Ryzen 5 40 has 4 MB shared.
• Memory support: EPYC 7543P uses DDR4, Ryzen 5 40 uses LPDDR5.
• Memory bus: EPYC 7543P is eight-channel, Ryzen 5 40 is dual-channel.
• Memory bandwidth: EPYC 7543P is 204.8 GB/s, Ryzen 5 40 is 88.0 GB/s.
• ECC memory: Supported on EPYC 7543P, not supported on Ryzen 5 40.
• PCIe: EPYC 7543P is Gen 4 with 128 lanes, Ryzen 5 40 is Gen 3 with 4 lanes.
• Integrated graphics: None on EPYC 7543P, Radeon 610M on Ryzen 5 40.
• Market segment: EPYC 7543P is Server/Workstation, Ryzen 5 40 is Mobile.
• Release date: EPYC 7543P launched 2021-03-14, Ryzen 5 40 launched 2025-09-30.
• Launch MSRP: EPYC 7543P is $2730, Ryzen 5 40 has no recorded launch MSRP.
• Transistors: EPYC 7543P has 33,200 million, Ryzen 5 40 has no recorded figure.
• Die size: EPYC 7543P is 8x 81 mm², Ryzen 5 40 is 100 mm².