AMD Ryzen Embedded 9900X vs Intel Core Ultra 5 250KF Plus Comparison

The Verdict

The data presents an asymmetric comparison. The AMD Ryzen Embedded 9900X has no recorded benchmark scores or average score in the database, placing it at the 50th percentile of all CPUs with a zero average benchmark score. The Intel Core Ultra 5 250KF Plus, in contrast, has 17 recorded benchmark scores, an average benchmark score of 66159, and sits at the 93rd percentile of all CPUs. For any workload where measured performance matters, the Intel part is the only one with data to analyze. The AMD part appears as a specification sheet entry without empirical results. Users requiring verified performance numbers should select the Intel Core Ultra 5 250KF Plus, as it is the only one of the two with benchmark evidence in the database.

Architecture Differences

The two processors represent different design philosophies from their respective manufacturers. The AMD Ryzen Embedded 9900X uses the Granite Ridge codename and belongs to the Ryzen Embedded generation built on Zen 5 architecture. It is fabricated on a 4 nm process at TSMC, using 16,630 million transistors across a dual-chiplet design with a die size of 2x 70.6 mm². The Intel Core Ultra 5 250KF Plus uses the Arrow Lake Refresh codename, belongs to the Core Ultra Series 2 generation, and is built on a 3 nm process, also at TSMC. Intel's part uses 17,800 million transistors on a single 243 mm² die. The process node difference (4 nm versus 3 nm) and the transistor count difference (16,630 million versus 17,800 million) indicate Intel's design packs more transistors into a larger monolithic die, while AMD splits its design across two smaller chiplets.

Core topology differs substantially. The AMD processor has 12 cores and 24 threads, using simultaneous multithreading to double thread count. The Intel processor has 18 cores and 18 threads, with no multithreading, meaning each core handles exactly one thread. Despite having fewer physical cores, AMD's part offers more threads (24 versus 18). Cache hierarchies also diverge. AMD provides 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. Intel provides 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 30 MB of shared L3 cache. Intel's larger per-core L1 and L2 allocations contrast with AMD's larger L3 pool. Both sockets differ: AMD uses Socket AM5, Intel uses Socket 1851. Both processors have unlocked multipliers. The AMD part includes Radeon Graphics as integrated graphics, while the Intel part lists N/A for integrated graphics, meaning it has no iGPU. Both support DDR5 memory with dual-channel buses, and both support ECC memory. PCIe capabilities differ slightly: AMD offers Gen 5 with 24 lanes from the CPU, Intel offers Gen 5 with 20 lanes. Memory bandwidth also differs, with AMD at 89.6 GB/s and Intel at 115.2 GB/s. The Intel part has a launch MSRP of $184, while the AMD part has no recorded launch MSRP.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 250KF Plus has 18 cores, while the AMD Ryzen Embedded 9900X has 12 cores. However, the AMD processor has 24 threads versus Intel's 18 threads because AMD enables simultaneous multithreading.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen Embedded 9900X has a boost clock of 5.60 GHz, while the Intel Core Ultra 5 250KF Plus has a boost clock of 5.30 GHz. AMD also has a higher base clock at 4.40 GHz versus Intel's 4.20 GHz.

Q: How does the Intel Core Ultra 5 250KF Plus compare to its nearest rivals?

A: The Intel part's average benchmark score of 66159 is 0.1% above the Intel Core 9 273PQE (66099), 0.4% above the AMD Ryzen 9 7950X3D (65914), 1% below the Intel Core Ultra 5 250K Plus (66855), and 1.1% below the AMD EPYC 4465P (66925). It is effectively in the same performance tier as all four rivals.

Q: Does either processor include integrated graphics?

A: The AMD Ryzen Embedded 9900X includes Radeon Graphics. The Intel Core Ultra 5 250KF Plus lists N/A for integrated graphics, meaning it does not include an iGPU. This matters for systems without a discrete graphics card.

Q: What is the memory bandwidth for each processor?

A: The Intel Core Ultra 5 250KF Plus has a memory bandwidth of 115.2 GB/s, which is higher than the AMD Ryzen Embedded 9900X's 89.6 GB/s. Both use DDR5 memory with dual-channel buses and support ECC.

Q: What percentile ranking does each processor hold?

A: The Intel Core Ultra 5 250KF Plus ranks at the 93rd percentile of all CPUs. The AMD Ryzen Embedded 9900X ranks at the 50th percentile, with no benchmark scores recorded in the database.

Specification Differences

The two processors differ in nearly every major specification category. Core count: AMD has 12, Intel has 18. Thread count: AMD has 24, Intel has 18. Base clock: AMD at 4.40 GHz, Intel at 4.20 GHz. Boost clock: AMD at 5.60 GHz, Intel at 5.30 GHz. TDP: AMD at 120, Intel at 125. Socket: AMD Socket AM5 versus Intel Socket 1851. Codename: Granite Ridge versus Arrow Lake Refresh. Process node: 4 nm versus 3 nm. Transistors: 16,630 million versus 17,800 million. Die size: 2x 70.6 mm² versus 243 mm². L1 cache: 80 KB per core versus 192 KB per core. L2 cache: 1 MB per core versus 3 MB per core. L3 cache: 64 MB versus 30 MB shared. Memory bandwidth: 89.6 GB/s versus 115.2 GB/s. PCIe lanes: 24 versus 20. Integrated graphics: Radeon Graphics versus N/A. Release date: 2025-10-06 versus 2026-03-10. Part number: 100-000000662E versus SA4V3. The Intel part has a launch MSRP of $184; the AMD part has no launch MSRP recorded. Both support DDR5, dual-channel memory, ECC, have unlocked multipliers, are Active in production, and target the Desktop market segment.

Head-to-Head Benchmarks

The head-to-head benchmark field is empty, and the win counts show zero for both processors. The AMD Ryzen Embedded 9900X has no benchmarks array entries, no average benchmark score, and no nearest rivals. This means there is no measured data for the AMD part to compare against the Intel part directly. The Intel Core Ultra 5 250KF Plus, however, has a full set of 17 benchmark scores. In Cinebench R15 multicore, it scores 4305; in R15 single-core, 607. In Cinebench R20 multicore, it scores 17941; in single-core, 2532. In Cinebench R23 multicore, it scores 42718; in single-core, 6030. Passmark results include multithread at 50146, single-thread at 4698, physics at 3183, floating point math at 159824, integer math at 123030, extended instructions at 42880, data compression at 553155, data encryption at 41292, find prime numbers at 452, and random string sorting at 67209. The average benchmark score of 66159 places it at the 93rd percentile. Since the AMD part's average score is 0 and its percentile is 50, the only defensible comparison is that the Intel part has measurable performance data while the AMD part does not. The Intel part's nearest rivals, all within 1.1% of its average score, provide context for its standing: it trades blows with the Intel Core 9 273PQE, AMD Ryzen 9 7950X3D, Intel Core Ultra 5 250K Plus, and AMD EPYC 4465P.

Where Each One Wins

The AMD Ryzen Embedded 9900X wins in specifications that favor its architecture. It has a higher base clock (4.40 GHz versus 4.20 GHz) and a higher boost clock (5.60 GHz versus 5.30 GHz). It offers more threads (24 versus 18), which matters for heavily threaded workloads that can exploit simultaneous multithreading. Its L3 cache is more than double Intel's (64 MB versus 30 MB), potentially benefiting workloads with large working sets. It includes Radeon Graphics, so it can output video without a discrete GPU. It has more PCIe lanes (24 versus 20), allowing more Gen 5 devices to connect directly to the CPU. Its TDP is slightly lower at 120 versus 125. It also has a lower transistor count (16,630 million versus 17,800 million), which combined with the dual-chiplet design may indicate a different power distribution profile, though no wattage measurements exist in the database to confirm.

The Intel Core Ultra 5 250KF Plus wins in every measured benchmark category because it is the only part with recorded scores. Its 18 physical cores give it a higher core count than the AMD part. Its larger per-core L1 cache (192 KB versus 80 KB) and L2 cache (3 MB versus 1 MB) could benefit latency-sensitive single-threaded workloads. Its memory bandwidth is 28.7 GB/s higher (115.2 GB/s versus 89.6 GB/s). Its process node is smaller (3 nm versus 4 nm), and it packs more transistors into a single die. Its 93rd percentile ranking versus AMD's 50th percentile reflects the availability of data more than architectural merit. The Intel part also has a launch MSRP of $184, which is a documented market position. For any user who requires benchmark-verified performance, the Intel Core Ultra 5 250KF Plus is the only choice between these two, as the database contains no measured scores for the AMD Ryzen Embedded 9900X.