AMD EPYC 9654P vs AMD Ryzen 5 PRO 8540U Comparison

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 9654P has 96 cores and 192 threads, while the AMD Ryzen 5 PRO 8540U has 6 cores and 12 threads. That is a 16x difference in core count and a 16x difference in thread count.

Q: How do the two compare in Cinebench R23 multicore performance?

A: The EPYC 9654P scores 98,875 in Cinebench R23 multicore, while the Ryzen 5 PRO 8540U scores 15,456. The EPYC leads by 539.7%.

Q: Which chip has the higher boost clock?

A: The Ryzen 5 PRO 8540U boosts to 4.90 GHz, while the EPYC 9654P boosts to 3.70 GHz. The mobile chip has the higher peak frequency.

Q: What memory channels does each support?

A: The EPYC 9654P supports twelve-channel DDR5 memory with 460.8 GB/s bandwidth, while the Ryzen 5 PRO 8540U supports dual-channel DDR5 with 89.6 GB/s bandwidth.

Q: Do both processors have integrated graphics?

A: No. The Ryzen 5 PRO 8540U includes Radeon 740M integrated graphics, while the EPYC 9654P has no integrated graphics listed in the database.

Q: What is the percentile ranking for each processor?

A: The EPYC 9654P sits in the 77th percentile of all CPUs, and the Ryzen 5 PRO 8540U sits in the 76th percentile. Despite the massive benchmark gap, both rank near each other in the overall distribution.

Architecture Differences

The EPYC 9654P and Ryzen 5 PRO 8540U both use Zen 4 architecture, but they are built for entirely different segments. The EPYC 9654P is from the EPYC 9004 series with the codename Genoa, while the Ryzen 5 PRO 8540U is from the 8000 series with the codename Hawk Point.

The manufacturing process differs. The EPYC 9654P is built on a 5 nm process at TSMC, while the Ryzen 5 PRO 8540U uses a 4 nm process at the same foundry. Both are TSMC products, but the mobile chip uses the newer node.

Transistor counts and die sizes diverge sharply. The EPYC 9654P packs 78,840 million transistors across 12 dies, each 72 mm². The Ryzen 5 PRO 8540U has 20,900 million transistors on a single 137 mm² die. The EPYC is a multi-die server design; the Ryzen is a monolithic mobile chip.

Cache hierarchies show the server part's scale. Both have 64 KB of L1 per core and 1 MB of L2 per core. The shared L3, however, is 384 MB on the EPYC versus 16 MB on the Ryzen, a 24x difference.

The sockets and platforms are incompatible. The EPYC 9654P uses AMD Socket SP5, while the Ryzen 5 PRO 8540U uses AMD Socket FP7. The EPYC targets server and workstation systems; the Ryzen targets mobile laptops.

PCIe capabilities also separate the two. The EPYC 9654P provides Gen 5 with 128 lanes (CPU only), while the Ryzen 5 PRO 8540U provides Gen 4 with 14 lanes (CPU only). The server chip has over 9x the PCIe lanes and a generation newer interface.

Memory bandwidth is another major architectural separator. The EPYC 9654P uses twelve-channel DDR5 with 460.8 GB/s of bandwidth, while the Ryzen 5 PRO 8540U uses dual-channel DDR5 with 89.6 GB/s. Both support ECC memory.

The Ryzen 5 PRO 8540U includes Radeon 740M integrated graphics; the EPYC 9654P has none listed. The EPYC was released on 2022-11-09, while the Ryzen came later on 2024-04-15. The EPYC carries a launch MSRP of $10625; the Ryzen has no launch MSRP recorded in the database.

Head-to-Head Benchmarks

The head-to-head benchmark results are absolutely one-sided. Across all six recorded tests, the AMD EPYC 9654P wins every single one, with deltas consistently above 500%.

In Cinebench R15 multicore, the EPYC scores 9,966 against 1,557 for the Ryzen, a 540.1% advantage. The single-core R15 test shows 1,406 versus 219, a 542% lead for the EPYC. That single-core delta is remarkable because the Ryzen has a much higher boost clock of 4.90 GHz versus 3.70 GHz, yet the server chip still dominates.

Cinebench R20 multicore continues the pattern: 41,527 for the EPYC versus 6,491 for the Ryzen, a 539.8% difference. The R20 single-core test shows 5,862 versus 916, a 540% lead. The sheer consistency of the margins, all hovering near 540%, suggests the EPYC's advantage scales linearly across the Cinebench suite.

Cinebench R23 multicore delivers 98,875 for the EPYC versus 15,456 for the Ryzen, a 539.7% lead. The R23 single-core test records 13,958 versus 2,182, also a 539.7% difference.

The EPYC's single-core dominance is the most striking finding. Despite the Ryzen 5 PRO 8540U's higher boost clock and newer 4 nm process, the EPYC 9654P still beats it by roughly 5.4x in single-threaded Cinebench tests. This indicates that the server chip's Zen 4 implementation, likely with higher sustained power delivery and different frequency behavior, delivers far more single-thread performance than the mobile part's specifications might suggest.

The database also shows average benchmark scores that tell a different story. The EPYC 9654P has an average benchmark score of 24,465, while the Ryzen 5 PRO 8540U has 23,709. The EPYC's nearest rivals include the Intel Core i5-11600 at 24,563 (-0.4% delta), the AMD Ryzen 5 PRO 6650H at 24,364 (0.4% delta), the Intel Core i5-12450HX at 24,576 (-0.5% delta), and the Intel Core i7-1360P at 24,344 (0.5% delta). The Ryzen's nearest rivals include the Intel Core i5-11500 at 23,718 (0% delta), the Intel Xeon 6333P at 23,823 (-0.5% delta), the Intel Core 3 100HL at 23,545 (0.7% delta), and the AMD Ryzen 7 8840U at 23,982 (-1.1% delta).

Specification Differences

The following fields differ between the AMD EPYC 9654P and the AMD Ryzen 5 PRO 8540U:

• Series: EPYC 9004 series versus 8000 series
• Cores: 96 versus 6
• Threads: 192 versus 12
• Base clock: 2.40 GHz versus 3.20 GHz
• Boost clock: 3.70 GHz versus 4.90 GHz
• TDP: 360 versus 28
• Socket: AMD Socket SP5 versus AMD Socket FP7
• Codename: Genoa versus Hawk Point
• Generation: EPYC (Zen 4 (Genoa)) versus Ryzen 5 (Zen 4 (Hawk Point))
• Process node: 5 nm versus 4 nm
• Transistors: 78,840 million versus 20,900 million
• Die size: 12x 72 mm² versus 137 mm²
• L3 cache: 384 MB (shared) versus 16 MB (shared)
• Memory bus: Twelve-channel versus dual-channel
• Memory bandwidth: 460.8 GB/s versus 89.6 GB/s
• PCIe: Gen 5, 128 lanes (CPU only) versus Gen 4, 14 lanes (CPU only)
• Integrated graphics: None versus Radeon 740M
• Market segment: Server/Workstation versus Mobile
• Release date: 2022-11-09 versus 2024-04-15
• Launch MSRP: $10625 versus not recorded
• Part number: 100-100000803 versus 100-000001329 (FP7r2), 100-000001331 (FP7)

Both chips share the same L1 cache (64 KB per core), L2 cache (1 MB per core), DDR5 memory support, ECC memory support, and both have locked multipliers. Both come from AMD with Zen 4 architecture and are produced by TSMC.

Where Each One Wins

The AMD EPYC 9654P wins in every benchmark category recorded in the head-to-head comparison. All six Cinebench tests, both multicore and single-core, go to the server chip with margins between 539.7% and 542%. This makes the EPYC the clear choice for any workload that relies on raw CPU throughput, including rendering, scientific computing, virtualization, and database workloads. Its 96 cores, 192 threads, 384 MB of L3 cache, twelve-channel memory with 460.8 GB/s bandwidth, and 128 PCIe Gen 5 lanes position it for server and workstation environments where massive parallel processing is the norm.

The Ryzen 5 PRO 8540U does not win any head-to-head benchmark, but its profile suits a completely different use case. It is a mobile processor with a 28 TDP, which is dramatically lower than the EPYC's 360 TDP. The Ryzen offers integrated Radeon 740M graphics, making it suitable for thin-and-light laptops that need CPU and GPU capability in a single package. Its higher boost clock of 4.90 GHz and newer 4 nm process suggest efficiency advantages in short burst workloads, even though the recorded Cinebench results favor the EPYC. The dual-channel memory and 14 PCIe Gen 4 lanes are appropriate for mobile platforms where space and power are constrained.

The EPYC 9654P's single-core wins are particularly notable. Scoring 13,958 in Cinebench R23 single-core against the Ryzen's 2,182, the server chip demonstrates that it does not sacrifice single-thread performance for its massive core count. This makes it viable for workloads that require both high per-thread performance and extreme multi-threading capability.

The Ryzen 5 PRO 8540U, despite losing every head-to-head test, still ranks in the 76th percentile of all CPUs, nearly matching the EPYC's 77th percentile. The database's average benchmark scores place the Ryzen at 23,709, only about 3% behind the EPYC's 24,465. This reflects the different benchmark sets available for each processor: the Ryzen has PassMark tests covering compression, encryption, extended instructions, prime number finding, floating point math, integer math, multithread, physics, random string sorting, and single-thread performance, while the EPYC only has Cinebench and Geekbench records.

For a server rack or workstation build, the EPYC 9654P is the obvious selection based on the data. For a mobile workstation or laptop, the Ryzen 5 PRO 8540U provides integrated graphics, lower power consumption, and a modern 4 nm process, with the tradeoff of far lower multicore throughput. The two processors are not direct competitors; they occupy opposite ends of the AMD lineup, and the benchmark data reflects that positioning.