AMD EPYC 9015 vs AMD Ryzen 9 9900X3D Comparison

The AMD EPYC 9015 and the AMD Ryzen 9 9900X3D share the same Zen 5 architecture, the same 4 nm TSMC process, and even the same physical packaging figures, yet the database shows they are built for entirely different jobs. The EPYC 9015 is a Socket SP5 server processor from the Turin-based EPYC 9005 series, released on 2024-10-09 with a launch MSRP of $527, while the Ryzen 9 9900X3D is a Granite Ridge desktop part on Socket AM5, released 2025-01-05 with a launch MSRP of $599. In the recorded benchmark suite the desktop chip wins every single head-to-head test, but the EPYC counters with server-grade platform features the Ryzen cannot match, and the two land one percentile point apart overall, at 92 versus 91 against all CPUs in the database.

FAQ

Q: Which CPU is faster in benchmarks?

A: The Ryzen 9 9900X3D, decisively. It wins all 11 head-to-head PassMark tests, with margins ranging from 29.7 percent in single-thread (4646 vs 3265) to 49.5 percent in extended instructions (55426 vs 27970). Its average benchmark score of 54762 sits slightly below the EPYC's 57555 only because the averages are computed across different test suites, including Cinebench and Geekbench runs recorded for the Ryzen but not the EPYC.

Q: Do they use the same architecture and manufacturing process?

A: Yes. Both are AMD Zen 5 designs fabricated on TSMC's 4 nm node, with identical transistor counts of 16,630 million and identical die configurations of 2x 70.6 mm². The difference is segmentation: Turin for the server part, Granite Ridge for the desktop part.

Q: Which has more cores and cache?

A: The Ryzen 9 9900X3D has 12 cores and 24 threads against the EPYC's 8 cores and 16 threads, and it doubles the L3 cache at 128 MB versus 64 MB. Both share the same per-core L1 (80 KB) and L2 (1 MB) allotments.

Q: Which platform has more memory bandwidth and PCIe connectivity?

A: The EPYC 9015, by a wide margin. It offers a twelve-channel DDR5 bus delivering 576.0 GB/s of bandwidth, over six times the Ryzen's dual-channel 89.6 GB/s, plus 128 Gen 5 PCIe lanes versus 24 on the Ryzen. Both support DDR5 and ECC memory.

Q: Can either chip be overclocked, and does either have integrated graphics?

A: The Ryzen 9 9900X3D has an unlocked multiplier and integrated Radeon Graphics; the EPYC 9015 has a locked multiplier and no integrated graphics.

Q: How does each compare to its own nearest rivals?

A: The EPYC 9015's closest competitor by average score is the AMD Ryzen 9 9900X at 57498, a delta of just 0.1 percent, and it also sits within about one percent of the Intel Core i9-14900 (58115) and Intel Xeon Platinum 8260M (58323). The Ryzen 9 9900X3D is 0.6 percent ahead of the Intel Core Ultra 5 245KF (55093) and roughly two percent ahead of the Intel Xeon 6505P (53701) and Intel Core i7-14700F (53620).

Where Each One Wins

The data shows a clean split. On pure compute, the Ryzen 9 9900X3D wins everywhere, and by large margins: 45.3 percent ahead in PassMark multithread, 48.5 percent ahead in integer math, 48.5 percent ahead in floating point math, and 48.5 percent ahead in data compression. Single-threaded responsiveness favors the Ryzen even more starkly in clock terms, with a 5.50 GHz boost against the EPYC's 4.10 GHz, and the recorded 29.7 percent single-thread lead confirms it. Desktop workloads, gaming, and application throughput clearly belong to the 9900X3D.

The EPYC 9015 wins nothing in the benchmark table, but the recorded data points to where it wins in practice: platform capacity. Twelve memory channels and 576.0 GB/s of bandwidth make it the only option here for memory-starved server workloads. Its 128 Gen 5 PCIe lanes dwarf the Ryzen's 24, enabling dense storage, networking, and accelerator configurations. Its Socket SP5 platform and server/workstation segmentation position it for rack deployment, not desktop towers. If a workload scales on memory bandwidth and I/O rather than raw per-core speed, the EPYC remains the rational pick despite the score deficit.

Architecture Differences

Both processors are Zen 5, and the shared silicon fundamentals are striking: identical 4 nm TSMC fabrication, identical 16,630 million transistor counts, and identical 2x 70.6 mm² die layouts. The divergence is in how each product uses that foundation.

The EPYC 9015 belongs to the Turin codename family within the EPYC 9005 series, a server lineage that prioritizes platform connectivity: twelve-channel DDR5, 576.0 GB/s of memory bandwidth, and 128 CPU-only Gen 5 PCIe lanes. Its 8 cores and 16 threads run conservatively, at a 3.60 GHz base and 4.10 GHz boost within a 125 W TDP, which suits sustained multi-client server duty.

The Ryzen 9 9900X3D is codenamed Granite Ridge, part of the 9000 series desktop family. It uses the same silicon budget to deliver more cores (12) and threads (24), much higher clocks (4.40 GHz base, 5.50 GHz boost) at a lower 120 W TDP, and double the shared L3 cache at 128 MB, the cache capacity that defines the X3D line. It adds an integrated Radeon Graphics unit and an unlocked multiplier, both desktop-oriented features absent from the EPYC. Both support DDR5 and ECC memory, a notable parity point for workstation buyers.

Specification Differences

The two differ on nearly every user-facing specification despite sharing silicon-level attributes.

• Cores/Threads: 8/16 (EPYC) vs 12/24 (Ryzen)
• Base/Boost Clock: 3.60/4.10 GHz vs 4.40/5.50 GHz
• TDP: 125 W vs 120 W
• Socket: SP5 vs AM5
• L3 Cache: 64 MB shared vs 128 MB
• Memory Bus: Twelve-channel vs dual-channel
• Memory Bandwidth: 576.0 GB/s vs 89.6 GB/s
• PCIe: Gen 5, 128 lanes vs Gen 5, 24 lanes
• Integrated Graphics: N/A vs Radeon Graphics
• Market Segment: Server/Workstation vs Desktop
• Multiplier: Locked vs unlocked
• Release Date: 2024-10-09 vs 2025-01-05
• Launch MSRP: $527 vs $599

Identical between them: manufacturer, Zen 5 architecture, 4 nm node, TSMC foundry, transistor count, die size, per-core L1 and L2 cache, DDR5 support, ECC support, active production status, and part numbering scheme (100-000001553 vs 100-000001368).

Head-to-Head Benchmarks

The shared PassMark suite is a rout: 11 tests, 11 wins for the Ryzen 9 9900X3D, with the EPYC shut out.

The biggest single margin comes in extended instructions, where the Ryzen scores 55426 against 27970, a 49.5 percent gap. That test rewards the 9900X3D's extra cores, higher clocks, and doubled L3 cache all at once, and the same combination produces a cluster of near-identical results: integer math 179727 vs 92524 (48.5 percent), floating point math 119622 vs 61615 (48.5 percent), and data compression 685074 vs 353014 (48.5 percent). These are almost perfectly parallel margins, which tells the analyst the Ryzen is simply scaling the same work with roughly twice the effective throughput per watt of silicon effort.

Compute-adjacent tests follow the pattern. Data encryption lands at 33282 vs 17790, a 46.5 percent gap. Physics runs 5340 vs 2893 (45.8 percent). Multithread overall is 56154 vs 30689, 45.3 percent apart, and random string sorting is 71864 vs 39772, 44.7 percent apart. Prime number finding, the lowest-throughput test in the set, still favors the Ryzen 544 to 304, a 44.1 percent margin.

The one place the EPYC keeps it close is single-thread: 4646 vs 3265, a 29.7 percent gap. That is the narrowest deficit in the suite, consistent with the EPYC's 4.10 GHz boost trailing rather than collapsing, and it explains why the EPYC still ranks in the 92nd percentile against all CPUs in the database, one point above the Ryzen's 91st. The EPYC's average score of 57555 also edges the Ryzen's 54762, though that figure reflects its strong standing against server peers such as the Intel Xeon Platinum 8260M (58323, a 1.3 percent delta) and the AMD EPYC 7313 (57399, a 0.3 percent delta) rather than desktop-suite dominance.

The verdict the data supports is straightforward. Within its own market the EPYC 9015 is a well-positioned single-socket server CPU with a benchmark profile nearly identical to the AMD Ryzen 9 9900X (0.1 percent delta), but when the two AMD chips are placed on the same test bench, the Ryzen 9 9900X3D wins every measurable contest. The EPYC's case rests entirely on what the benchmarks do not measure: twelve-channel memory, massive PCIe connectivity, and the SP5 platform built for the server room.