AMD Ryzen Embedded 9900X3D vs AMD Ryzen Threadripper PRO 9955WX Comparison

Where Each One Wins

The AMD Ryzen Embedded 9900X3D and the AMD Ryzen Threadripper PRO 9955WX occupy different positions in the desktop processor landscape. The recorded data contains benchmark results for the Threadripper PRO 9955WX only, with no benchmark entries for the Embedded 9900X3D, meaning the comparison relies on the Threadripper's measured scores, its percentile ranking, and the architectural specifications of both parts.

The Threadripper PRO 9955WX is a 16-core, 32-thread processor with a base clock of 4.50 GHz and a boost clock of 5.40 GHz. It sits at the 97th percentile among all CPUs in the database, with an average benchmark score of 101,041. Its nearest rivals in the database include the AMD EPYC 7513 at 102,244 (1.2% higher), the AMD EPYC 4585PX at 99,324 (1.7% lower), the AMD EPYC 8324P at 103,329 (2.2% higher), and the AMD Ryzen Threadripper PRO 5965WX at 98,504 (2.6% lower). The Threadripper PRO 9955WX thus lands within a tight cluster of high-end workstation and server processors, trailing the EPYC 8324P by 2.2% and the EPYC 7513 by 1.2%, while leading the EPYC 4585PX by 1.7% and the older Threadripper PRO 5965WX by 2.6%.

The Embedded 9900X3D, by contrast, is a 12-core, 24-thread processor with a base clock of 4.40 GHz and a boost clock of 5.50 GHz. It belongs to the Granite Ridge family built on Zen 5, whereas the Threadripper PRO 9955WX uses the Shimada Peak codename and is listed under the Zen 5 architecture (its generation field mentions Zen 4 Storm Peak, a discrepancy in the database but not a measurable one). The Embedded 9900X3D carries 128 MB of L3 cache, double the 64 MB on the Threadripper, and includes integrated Radeon Graphics, which the Threadripper lacks. Its socket is AMD Socket AM5 with 24 PCIe Gen 5 lanes, while the Threadripper uses Socket sTR5 with 128 PCIe Gen 5 lanes.

The use-case split is clear from the specifications. The Threadripper PRO 9955WX wins on raw multi-threaded throughput and memory bandwidth. Its eight-channel memory bus delivers 409.6 GB/s, more than four times the 89.6 GB/s of the dual-channel Embedded 9900X3D. The Threadripper also has 33% more cores and 33% more threads. Its measured Cinebench scores reflect that advantage: 5,996 in Cinebench R15 multi-core, 24,987 in R20 multi-core, and 59,494 in R23 multi-core. The Embedded 9900X3D has no benchmark entries, so no direct comparison of measured scores is possible, but its lower core count and narrower memory bus indicate it would trail in heavily threaded workloads.

The Embedded 9900X3D wins on L3 cache capacity and integrated graphics. Its 128 MB of L3 is double the Threadripper's 64 MB, which benefits workloads that fit within the larger cache footprint. The integrated Radeon Graphics means the Embedded part can drive a display without a discrete GPU, a capability absent from the Threadripper. The Embedded chip also has a higher boost clock at 5.50 GHz versus 5.40 GHz, and a lower TDP at 120 W versus 350 W.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen Embedded 9900X3D boosts to 5.50 GHz, while the AMD Ryzen Threadripper PRO 9955WX boosts to 5.40 GHz. The Embedded part is 0.10 GHz higher.

Q: How much L3 cache does each processor have?

A: The Embedded 9900X3D has 128 MB of L3 cache. The Threadripper PRO 9955WX has 64 MB of L3 cache. The Embedded part has double the L3 capacity.

Q: What is the memory bandwidth difference between the two?

A: The Threadripper PRO 9955WX uses an eight-channel memory bus with 409.6 GB/s of bandwidth. The Embedded 9900X3D uses a dual-channel bus with 89.6 GB/s. The Threadripper has roughly 4.6 times the memory bandwidth.

Q: Does either processor include integrated graphics?

A: Only the Embedded 9900X3D includes Radeon Graphics. The Threadripper PRO 9955WX has no integrated graphics, listed as N/A.

Q: How does the Threadripper PRO 9955WX compare to its nearest rivals?

A: The Threadripper PRO 9955WX has an average benchmark score of 101,041. It trails the AMD EPYC 7513 by 1.2% and the AMD EPYC 8324P by 2.2%, while leading the AMD EPYC 4585PX by 1.7% and the AMD Ryzen Threadripper PRO 5965WX by 2.6%.

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

A: The Threadripper PRO 9955WX has 16 cores and 32 threads. The Embedded 9900X3D has 12 cores and 24 threads. The Threadripper has 4 more cores and 8 more threads.

Head-to-Head Benchmarks

The database includes no head-to-head benchmark entries for these two processors, and the Embedded 9900X3D has no individual benchmark scores recorded. The comparison therefore rests on the Threadripper PRO 9955WX's measured results and the architectural facts of the Embedded part.

The Threadripper PRO 9955WX's Cinebench scores establish its multi-core capability. It records 5,996 in Cinebench R15 multi-core, 24,987 in R20 multi-core, and 59,494 in R23 multi-core. Single-core scores are 846 in R15, 3,527 in R20, and 8,399 in R23. The Embedded 9900X3D has no equivalent measurements, so a direct numeric comparison is not possible. The Threadripper's 16 cores and 32 threads, paired with its 4.50 GHz base clock, support these results. The Embedded part's 12 cores and 24 threads with a 4.40 GHz base clock would necessarily produce lower multi-threaded scores, though the exact margin is unmeasured.

In PassMark tests, the Threadripper PRO 9955WX shows strong results across a range of workloads. It scores 920,954 in data compression, 44,389 in data encryption, 76,363 in extended instructions, 337 in find prime numbers, 156,215 in floating point math, 236,120 in integer math, 67,035 in multithread, 4,156 in physics, 99,813 in random string sorting, and 4,530 in single-thread tests. These numbers place the Threadripper at the 97th percentile among all CPUs.

The largest single measured advantage for the Threadripper is in data compression, where it scores 920,954, far above its other PassMark results. Its multithread score of 67,035 and floating point math score of 156,215 also indicate strong parallel performance. The single-thread score of 4,530 is lower in absolute terms but still places the chip at the 97th percentile overall, driven by the multi-core and memory bandwidth advantages.

Without benchmark data for the Embedded 9900X3D, the analysis cannot quantify its wins. Its higher boost clock of 5.50 GHz and doubled L3 cache of 128 MB suggest an advantage in single-threaded and cache-sensitive workloads, but the database records no scores to confirm this. The Threadripper's 409.6 GB/s memory bandwidth versus 89.6 GB/s for the Embedded part is the largest specification gap between the two, and it underpins the Threadripper's measured multi-core performance.

Specification Differences

The two processors differ in several core specifications. The Threadripper PRO 9955WX has 16 cores and 32 threads; the Embedded 9900X3D has 12 cores and 24 threads. Base clocks are 4.50 GHz for the Threadripper and 4.40 GHz for the Embedded part. Boost clocks are 5.40 GHz for the Threadripper and 5.50 GHz for the Embedded part. TDP is 350 W for the Threadripper and 120 W for the Embedded part.

The sockets are different: the Threadripper uses AMD Socket sTR5, while the Embedded part uses AMD Socket AM5. Memory support differs in channel count: the Threadripper has an eight-channel bus, the Embedded part has a dual-channel bus. Memory bandwidth is 409.6 GB/s for the Threadripper and 89.6 GB/s for the Embedded part. PCIe lane count is 128 Gen 5 lanes for the Threadripper and 24 Gen 5 lanes for the Embedded part.

Integrated graphics are present only on the Embedded part, which has Radeon Graphics; the Threadripper lists N/A. The L1 cache is 64 KB per core on the Threadripper and 80 KB per core on the Embedded part. L2 cache is 1 MB per core on both. L3 cache is 64 MB on the Threadripper and 128 MB on the Embedded part.

The release dates differ: the Threadripper PRO 9955WX launched on 2025-07-22, and the Embedded 9900X3D launched on 2025-10-06. The Threadripper has a launch MSRP of $1649; the Embedded part has no launch MSRP listed. Both processors have unlocked multipliers. The part numbers are 100-000000725 for the Threadripper and 100-000001368E for the Embedded part. Both are in the 9000 series from AMD, and both are marked as Active in production status.

Architecture Differences

The two processors share a 4 nm process node from TSMC, with 16,630 million transistors and a die size of 2x 70.6 mm². The foundry is TSMC for both. The codenames differ: the Embedded 9900X3D is Granite Ridge, and the Threadripper PRO 9955WX is Shimada Peak. The generation fields also differ, with the Embedded part listed as Ryzen Embedded (Zen 5, Granite Ridge) and the Threadripper listed as Ryzen Threadripper (Zen 4, Storm Peak), though the architecture field for the Threadripper states Zen 5. The Embedded part's architecture field is null, so the database is inconsistent on this point, but the generation labels are the concrete records.

The cache hierarchy differs in L1 and L3. The Embedded part has 80 KB of L1 per core, versus 64 KB per core on the Threadripper. L3 is 128 MB on the Embedded part and 64 MB on the Threadripper. L2 is identical at 1 MB per core. The Embedded part's larger L3, combined with its higher boost clock, points to a design aimed at workloads with high cache reuse, while the Threadripper's wider memory bus and higher core count target throughput.

The memory architectures diverge sharply. The Threadripper's eight-channel DDR5 bus with 409.6 GB/s bandwidth is a workstation-class feature, while the Embedded part's dual-channel bus with 89.6 GB/s is more typical of a mainstream desktop. Both support ECC memory, and both use DDR5. The PCIe configurations also differ: 128 Gen 5 lanes on the Threadripper versus 24 Gen 5 lanes on the Embedded part, reflecting the Threadripper's expandability for multi-GPU and storage configurations.

The Embedded part includes integrated Radeon Graphics, a feature absent from the Threadripper. This makes the Embedded part a single-chip solution for systems that need display output, whereas the Threadripper requires a discrete GPU. The Threadripper's 350 W TDP versus 120 W for the Embedded part indicates a much higher power envelope, consistent with its extra cores, memory channels, and PCIe lanes. The market segment for both is listed as Desktop, and both are currently Active in production.