AMD EPYC 4244P vs AMD Ryzen 5 8645HS Comparison

FAQ

Q: Which processor wins in multi-core performance?

A: The AMD EPYC 4244P wins every multi-core benchmark in the comparison. Its lead ranges from 11.1% in Cinebench R15 multi-core (2327 vs 2094) to a massive 74.7% in Cinebench R23 multi-core (23089 vs 13220).

Q: How do the two compare in single-core performance?

A: The EPYC 4244P is ahead in all single-core tests. The smallest margin is in PassMark single-thread, where the EPYC scores 3710 versus 3653 for the Ryzen 5 8645HS, a 1.6% difference. The largest single-core gap appears in Cinebench R23 single-core, where the EPYC leads by 90.1% (3259 vs 1714).

Q: What are the core and thread counts for each processor?

A: Both processors feature 6 cores and 12 threads. The similarity ends there, as the EPYC 4244P is a server/workstation part on Socket AM5, while the Ryzen 5 8645HS is a mobile processor on Socket FP8.

Q: Which processor has more L3 cache?

A: The AMD EPYC 4244P has 32 MB of shared L3 cache. The AMD Ryzen 5 8645HS has 16 MB of shared L3 cache, exactly half the EPYC's amount.

Q: Do both processors support ECC memory?

A: No. The EPYC 4244P supports ECC memory, which is typical for a server/workstation processor. The Ryzen 5 8645HS does not support ECC memory.

Q: How do the processors compare in PassMark physics performance?

A: The EPYC 4244P scores 1981 in PassMark physics, while the Ryzen 5 8645HS scores 1095. This gives the EPYC an 80.9% advantage in that test.

Architecture Differences

The AMD EPYC 4244P and AMD Ryzen 5 8645HS both use the Zen 4 architecture, but they are built for entirely different market segments. The EPYC 4244P belongs to the EPYC 4004 series with the codename Raphael, targeting server and workstation workloads. The Ryzen 5 8645HS belongs to the 8000 series with the codename Hawk Point, targeting mobile computing.

The manufacturing process differs between the two. The EPYC 4244P is fabricated on a 5 nm process node at TSMC, while the Ryzen 5 8645HS uses a smaller 4 nm process node, also at TSMC. The transistor counts reflect this difference: the EPYC packs 6,570 million transistors on a 71 mm² die, while the Ryzen 5 integrates 25,000 million transistors on a 178 mm² die. The Ryzen's larger die and higher transistor count indicate a more complex integrated design, which includes its Radeon 760M integrated graphics.

Both processors feature 6 cores and 12 threads, with identical L1 cache at 64 KB per core and L2 cache at 1 MB per core. The L3 cache differs significantly: the EPYC 4244P has 32 MB shared, while the Ryzen 5 8645HS has 16 MB shared. This doubles the server processor's shared cache capacity.

Memory support also diverges. Both support DDR5 and dual-channel memory buses, but the EPYC 4244P has a memory bandwidth of 83.2 GB/s and supports ECC memory. The Ryzen 5 8645HS has a slightly higher memory bandwidth of 89.6 GB/s but lacks ECC support. PCIe connectivity differs as well: the EPYC 4244P provides Gen 5 with 28 lanes (CPU only), while the Ryzen 5 8645HS provides Gen 4 with 20 lanes (CPU only).

The integrated graphics differ. The EPYC 4244P includes Radeon Graphics, while the Ryzen 5 8645HS includes Radeon 760M. The Ryzen's integrated GPU is part of its mobile-focused design, whereas the EPYC's graphics are a secondary feature for a server part.

The release dates show a six-month gap, with the Ryzen 5 8645HS launching on December 5, 2023, and the EPYC 4244P launching on May 20, 2024. Both are currently in active production status. Neither processor has an unlocked multiplier.

Head-to-Head Benchmarks

The benchmark data records 15 head-to-head comparisons, and the AMD EPYC 4244P wins all 15. The Ryzen 5 8645HS does not win a single test. This is a decisive sweep, but the margins vary widely across workloads.

The largest victory for the EPYC 4244P comes in PassMark find prime numbers, where it scores 187 versus 75 for the Ryzen 5 8645HS, a 149.3% advantage. This test heavily favors the EPYC's architecture and cache configuration. In Cinebench R23 single-core, the EPYC leads by 90.1% (3259 vs 1714), and in PassMark physics, it leads by 80.9% (1981 vs 1095). These are substantial gaps that indicate the EPYC 4244P is in a different performance class for compute-intensive tasks.

Cinebench R23 multi-core shows a 74.7% lead for the EPYC (23089 vs 13220), which is the largest multi-core margin. This result is notable because both processors have the same core and thread counts, yet the EPYC delivers nearly 75% more performance in this benchmark. The EPYC also leads by 21.5% in Cinebench R15 single-core (328 vs 270) and by 11.1% in Cinebench R15 multi-core (2327 vs 2094).

In PassMark tests, the EPYC's leads are more moderate but still consistent. PassMark multithread shows an 18.6% advantage (26797 vs 22586), random string sorting shows 19.8% (38048 vs 31748), data encryption shows 17% (18232 vs 15588), and data compression shows 14% (302606 vs 265483). Extended instructions give the EPYC a 10.7% lead (22149 vs 20003), and integer math shows an 8.4% edge (78709 vs 72640).

The closest contests are in PassMark floating point math and single-thread tests. In floating point math, the EPYC scores 45546 versus 44833 for the Ryzen, a slim 1.6% lead. In single-thread (and singlethread, which is the same test recorded twice), the EPYC scores 3710 versus 3653, also a 1.6% margin. These narrow wins show that in lightly threaded, floating-point-heavy workloads, the two processors are nearly equivalent.

Specification Differences

The following specifications differ between the AMD EPYC 4244P and AMD Ryzen 5 8645HS:

• Series: EPYC 4004 series versus 8000 series
• Base Clock: 3.80 GHz versus 4.30 GHz
• Boost Clock: 5.10 GHz versus 5.00 GHz
• TDP: 65 W versus 45 W
• Socket: AMD Socket AM5 versus AMD Socket FP8
• Codename: Raphael versus Hawk Point
• Generation: EPYC (Zen 4 (Raphael)) versus Ryzen 5 (Zen 4 (Hawk Point))
• Process Node: 5 nm versus 4 nm
• Transistors: 6,570 million versus 25,000 million
• Die Size: 71 mm² versus 178 mm²
• L3 Cache: 32 MB shared versus 16 MB shared
• Memory Bandwidth: 83.2 GB/s versus 89.6 GB/s
• ECC Memory: Supported versus not supported
• PCIe: Gen 5, 28 Lanes versus Gen 4, 20 Lanes
• Integrated Graphics: Radeon Graphics versus Radeon 760M
• Market Segment: Server/Workstation versus Mobile
• Release Date: May 20, 2024 versus December 5, 2023
• Launch MSRP: $229 (EPYC only; the Ryzen has no recorded launch MSRP)
• Part Number: 100-000001480 versus 100-000001320 (FP7r2), 100-000001385 (FP7), 100-000001310 (FP8)

Both processors share the following: 6 cores, 12 threads, Zen 4 architecture, TSMC foundry, L1 cache of 64 KB per core, L2 cache of 1 MB per core, DDR5 memory support, dual-channel memory bus, locked multiplier, and active production status.

The Verdict

The data is unambiguous: the AMD EPYC 4244P outperforms the AMD Ryzen 5 8645HS in every recorded benchmark. With 15 wins out of 15 head-to-head tests, the EPYC is the stronger processor across the board. Its average benchmark score is 34220, placing it at the 84th percentile of all CPUs, while the Ryzen 5 8645HS averages 33244, at the 83rd percentile.

The EPYC 4244P's nearest rivals include the AMD Ryzen AI 7 350 (34222, 0% delta), the AMD Ryzen 7 3700X (34260, -0.1% delta), the Intel Core i5-13450HX (34333, -0.3% delta), and the Intel Core Ultra 7 165H (34083, 0.4% delta). This places it in a competitive band with those processors. The Ryzen 5 8645HS sits near the Intel Core i7-14701E (33206, 0.1% delta), the AMD Ryzen 9 PRO 6950H (33201, 0.1% delta), the Intel Core i5-12600HX (33375, -0.4% delta), and the AMD Ryzen 7 7745HX (33091, 0.5% delta).

In terms of cache, the EPYC's 32 MB of L3 versus the Ryzen's 16 MB likely contributes to its large leads in cache-sensitive workloads like PassMark find prime numbers and Cinebench R23. The EPYC also has a higher boost clock at 5.10 GHz versus 5.00 GHz, and a higher TDP at 65 W versus 45 W, which allows for sustained performance.

The Ryzen 5 8645HS does have a higher base clock (4.30 GHz vs 3.80 GHz) and higher memory bandwidth (89.6 GB/s vs 83.2 GB/s), but these advantages do not translate into benchmark wins. The Ryzen also integrates the more capable Radeon 760M graphics, though the benchmark data does not include GPU tests.

Where Each One Wins

The AMD EPYC 4244P wins in every benchmark category recorded. Its largest advantages are in prime number finding (149.3% over the Ryzen), Cinebench R23 single-core (90.1%), PassMark physics (80.9%), and Cinebench R23 multi-core (74.7%). These results make it the clear choice for compute-heavy server and workstation workloads, such as scientific calculations, rendering, and multi-threaded professional applications. The EPYC's support for ECC memory and PCIe Gen 5 with 28 lanes further positions it for server environments where data integrity and high-bandwidth connectivity are critical.

The AMD Ryzen 5 8645HS, despite losing every benchmark, is not without merit. It comes closest in PassMark floating point math and single-thread tests, where the EPYC leads by only 1.6%. Its 45 W TDP makes it a lower-power part, and its mobile socket (FP8) plus integrated Radeon 760M graphics target laptops and compact systems. The Ryzen's higher base clock of 4.30 GHz and memory bandwidth of 89.6 GB/s are notable, but the recorded data shows these do not overcome the EPYC's architectural advantages.

For users building a desktop server or workstation on Socket AM5, the EPYC 4244P is the superior choice based on the benchmark data. For mobile computing where power efficiency and integrated graphics matter, the Ryzen 5 8645HS is the relevant option, even though it trails in raw CPU performance. The data shows no workload category where the Ryzen beats the EPYC, so the selection comes down to platform and power requirements rather than performance.