AMD EPYC 9384X vs AMD Ryzen 9 9850HX Comparison

The Verdict

The AMD EPYC 9384X and AMD Ryzen 9 9850HX serve completely different markets, and the benchmark data reflects that split. The EPYC 9384X wins 9 of the 11 recorded head-to-head tests, with massive leads in heavily threaded workloads. It is the clear choice for server and workstation deployments where multi-core throughput, memory bandwidth, and PCIe lane count dominate. The Ryzen 9 9850HX wins the single-thread test by 32.4%, which makes it the obvious pick for mobile workloads where per-core speed matters and power constraints are tight. The database places both processors at the 97th percentile among all CPUs, so neither is slow, but the EPYC 9384X posts an average benchmark score of 120427 against the Ryzen 9 9850HX's 106413. The EPYC 9384X sits 1.8% above the Intel Xeon w7-3565X and 3.5% above the AMD EPYC 9255 in its rival group, while the Ryzen 9 9850HX sits 0.2% above the Intel Xeon w7-3555 and 3% above the AMD EPYC 8324P. If the workload is throughput-oriented and runs on a server platform, the EPYC 9384X is the pick. If the workload is single-thread-bound and has to run on a laptop, the Ryzen 9 9850HX is the only sensible option.

Architecture Differences

The EPYC 9384X is built on Zen 4 architecture with the Genoa-X codename, fabricated on a 5 nm process at TSMC. It belongs to the EPYC 9004 series, uses AMD Socket SP5, and targets the server and workstation market segment. The Ryzen 9 9850HX uses Zen 5 architecture with the Fire Range codename, fabricated on a 4 nm process at TSMC. It belongs to the 9000 series, uses AMD Socket FL1, and is a mobile part. The EPYC 9384X packs 32 cores and 64 threads, while the Ryzen 9 9850HX has 12 cores and 24 threads. The EPYC 9384X carries 90,160 million transistors across a die size of 8x 72 mm², while the Ryzen 9 9850HX carries 16,630 million transistors across a die size of 2x 70.6 mm². Cache configurations differ substantially: the EPYC 9384X has 64 KB of L1 per core, 1 MB of L2 per core, and a massive 768 MB of shared L3 cache. The Ryzen 9 9850HX has 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of L3. Memory support is DDR5 for both, but the EPYC 9384X runs twelve-channel memory with 460.8 GB/s bandwidth, while the Ryzen 9 9850HX runs dual-channel memory with 89.6 GB/s. Both support ECC memory. The EPYC 9384X provides Gen 5 PCIe with 128 lanes from the CPU; the Ryzen 9 9850HX provides Gen 5 PCIe with 28 lanes from the CPU. The Ryzen 9 9850HX includes integrated Radeon 610M graphics, while the EPYC 9384X has no integrated graphics. The Ryzen 9 9850HX has an unlocked multiplier; the EPYC 9384X does not. The EPYC 9384X launched on 2023-06-12 with a launch MSRP of $5529. The Ryzen 9 9850HX launched on 2025-01-05 and has part number 100-000001366.

Head-to-Head Benchmarks

The EPYC 9384X dominates the throughput tests. In passmark_physics, it scores 9332 against 3054, a 205.6% lead. That is the largest single advantage in the recorded data. In passmark_data_encryption, it scores 72631 against 32139, a 126% lead. Passmark_integer_math shows 297833 against 172943, a 72.2% advantage. Passmark_random_string_sorting shows 119440 against 70175, a 70.2% lead. Passmark_data_compression shows 1119983 against 662381, a 69.1% advantage. Passmark_find_prime_numbers shows 596 against 323, an 84.5% lead. Passmark_floating_point_math shows 174630 against 115062, a 51.8% advantage. Passmark_extended_instructions shows 74363 against 53817, a 38.2% lead. Passmark_multithread shows 69665 against 51722, a 34.7% advantage. The Ryzen 9 9850HX wins only the single-thread tests: passmark_single_thread and passmark_singlethread both show 4461 against 3015, a 32.4% advantage. The pattern is consistent: the EPYC 9384X leverages its 32 cores, 64 threads, 768 MB of L3, and twelve-channel memory to crush multithreaded workloads, while the Ryzen 9 9850HX leverages its 5.20 GHz boost clock and newer Zen 5 cores to win every per-core test.

Specification Differences

The two processors differ on nearly every specification that matters. The EPYC 9384X has 32 cores and 64 threads; the Ryzen 9 9850HX has 12 cores and 24 threads. The EPYC 9384X has a base clock of 3.10 GHz and a boost clock of 3.90 GHz; the Ryzen 9 9850HX has a base clock of 3.00 GHz and a boost clock of 5.20 GHz. The EPYC 9384X has a TDP of 320 watts; the Ryzen 9 9850HX has a TDP of 55 watts. The EPYC 9384X uses AMD Socket SP5; the Ryzen 9 9850HX uses AMD Socket FL1. The EPYC 9384X is Zen 4 (Genoa-X) on 5 nm; the Ryzen 9 9850HX is Zen 5 (Fire Range) on 4 nm. The EPYC 9384X has 64 KB L1 per core and 1 MB L2 per core; the Ryzen 9 9850HX has 80 KB L1 per core and 1 MB L2 per core. The EPYC 9384X has 768 MB shared L3; the Ryzen 9 9850HX has 64 MB L3. The EPYC 9384X has twelve-channel memory with 460.8 GB/s bandwidth; the Ryzen 9 9850HX has dual-channel memory with 89.6 GB/s. The EPYC 9384X has 128 PCIe Gen 5 lanes; the Ryzen 9 9850HX has 28 PCIe Gen 5 lanes. The EPYC 9384X has no integrated graphics; the Ryzen 9 9850HX has Radeon 610M. The EPYC 9384X is not multiplier-unlocked; the Ryzen 9 9850HX is multiplier-unlocked. The EPYC 9384X has 90,160 million transistors across 8x 72 mm²; the Ryzen 9 9850HX has 16,630 million transistors across 2x 70.6 mm². The EPYC 9384X is in the server and workstation segment; the Ryzen 9 9850HX is in the mobile segment. The EPYC 9384X launched on 2023-06-12; the Ryzen 9 9850HX launched on 2025-01-05.

FAQ

Q: Which processor is faster in single-threaded workloads?

A: The AMD Ryzen 9 9850HX. It scores 4461 in passmark_single_thread and passmark_singlethread, while the AMD EPYC 9384X scores 3015, a 32.4% advantage for the Ryzen.

Q: Which processor has more cores and threads?

A: The AMD EPYC 9384X has 32 cores and 64 threads. The AMD Ryzen 9 9850HX has 12 cores and 24 threads.

Q: How much L3 cache does the EPYC 9384X have?

A: The AMD EPYC 9384X has 768 MB of shared L3 cache. The AMD Ryzen 9 9850HX has 64 MB of L3.

Q: What is the memory bandwidth difference?

A: The AMD EPYC 9384X has twelve-channel memory with 460.8 GB/s bandwidth. The AMD Ryzen 9 9850HX has dual-channel memory with 89.6 GB/s bandwidth.

Q: Which processor supports ECC memory?

A: Both support ECC memory. The AMD EPYC 9384X and the AMD Ryzen 9 9850HX both list ECC support as true.

Q: Which processor has integrated graphics?

A: The AMD Ryzen 9 9850HX has integrated Radeon 610M graphics. The AMD EPYC 9384X has no integrated graphics.

Where Each One Wins

The AMD EPYC 9384X wins every multithreaded test in the recorded data. It leads in passmark_physics by 205.6% over the Ryzen 9 9850HX, in passmark_data_encryption by 126%, in passmark_integer_math by 72.2%, in passmark_random_string_sorting by 70.2%, in passmark_data_compression by 69.1%, in passmark_find_prime_numbers by 84.5%, in passmark_floating_point_math by 51.8%, in passmark_extended_instructions by 38.2%, and in passmark_multithread by 34.7%. The EPYC 9384X also wins on platform-level capabilities: 128 PCIe Gen 5 lanes, twelve-channel memory, and 768 MB of L3 cache are all server-class features. Its 32 cores and 64 threads make short work of parallel workloads. Its 320 watt TDP and AMD Socket SP5 confirm its stationary, high-throughput role. The Ryzen 9 9850HX wins the single-thread tests by 32.4% with a 4461 score against 3015. Its 5.20 GHz boost clock, 80 KB L1 per core, and unlocked multiplier make it the right tool for lightly threaded applications. Its 55 watt TDP, AMD Socket FL1, and Radeon 610M integrated graphics place it firmly in the mobile market. For a builder assembling a rack server or workstation node, the EPYC 9384X is the clear choice, and the Ryzen 9 9850HX is the clear choice for a high-performance laptop. The data does not show a scenario where the Ryzen 9 9850HX beats the EPYC 9384X in any multithreaded or memory bandwidth test, so choose accordingly.