AMD Ryzen 9 9950X vs Intel Core Ultra 5 250KF Plus Comparison

Head-to-Head Benchmarks

The head-to-head data between the AMD Ryzen 9 9950X and the Intel Core Ultra 5 250KF Plus shows a clear split: the AMD part dominates in multithreaded and integer-heavy workloads, while the Intel part takes the lead in single-core and floating-point tests. Out of 15 recorded comparisons, the AMD Ryzen 9 9950X wins 10, with the Intel Core Ultra 5 250KF Plus taking 5.

The largest margin of victory belongs to the AMD Ryzen 9 9950X in PassMark integer math, scoring 242097 against the Intel's 123030, a delta of 96.8%. This is nearly double the throughput in a purely integer workload, which reflects the AMD's 16 cores and 32 threads against the Intel's 18 cores and 18 threads. The AMD also wins PassMark extended instructions by 66.9% (71564 vs 42880), data compression by 62.1% (896544 vs 553155), and random string sorting by 40.4% (94368 vs 67209). These are substantial gaps in productivity-oriented tasks.

The PassMark multithread score favors the AMD Ryzen 9 9950X by 31.7% (66030 vs 50146). The AMD also takes PassMark data encryption by 7.4% (44366 vs 41292) and physics by 3% (3279 vs 3183). In single-thread PassMark, the AMD wins narrowly by 0.8% (4737 vs 4698), a marginal edge that shows the two are effectively matched in that specific test.

The Intel Core Ultra 5 250KF Plus wins its largest margin in Cinebench R23 single-core, scoring 6030 against the AMD's 2202, a delta of -63.5% from the AMD's perspective. That is a decisive single-thread advantage. The Intel also wins Cinebench R15 single-core by a similar proportion, 607 vs 344, a -43.3% delta. In Cinebench R23 multi-core, the Intel edges ahead with 42718 vs 40924, a -4.2% delta, despite having fewer threads. The Intel wins PassMark find prime numbers by 23.7% (452 vs 345) and floating point math by a slim 0.5% (159824 vs 159063).

Notably, Cinebench R15 multi-core tells a different story: the AMD wins 6335 vs 4305, a 47.2% margin. The recorded data across Cinebench versions is inconsistent in direction, with the AMD winning R15 multi-core by a wide margin but losing R23 multi-core by 4.2%. This suggests workload-specific scaling behavior rather than a universal multi-core advantage for either part.

In 3DMark tests, only the AMD Ryzen 9 9950X has recorded scores in the database: 16263 in 16-thread, 2543 in 2-thread, 4958 in 4-thread, 9298 in 8-thread, 16780 in max-thread, and 1293 in single-thread. The Intel Core Ultra 5 250KF Plus has no 3DMark entries in the recorded data, so no direct comparison is possible for those tests. Similarly, the Intel has Cinebench R20 scores (17941 multi-core, 2532 single-core) that have no AMD counterpart in the head-to-head set.

The average benchmark score in the database is 74640 for the AMD Ryzen 9 9950X and 66159 for the Intel Core Ultra 5 250KF Plus, a difference of about 12.8%. The AMD sits at the 94th percentile among all CPUs, while the Intel sits at the 93rd. The nearest rivals for the AMD are the AMD Ryzen 7 PRO 9745 (delta -0.2%), AMD Ryzen AI 9 HX PRO 475 (delta 0.2%), AMD EPYC 4545P (delta -1%), and Intel Core Ultra 9 285 (delta -1.1%). For the Intel, the nearest rivals are the Intel Core 9 273PQE (delta 0.1%), AMD Ryzen 9 7950X3D (delta 0.4%), Intel Core Ultra 5 250K Plus (delta -1%), and AMD EPYC 4465P (delta -1.1%). These deltas place both processors within a tight performance band around their respective averages.

The Verdict

The data indicates two distinct usage profiles. The AMD Ryzen 9 9950X is the stronger choice for workloads that scale with thread count and integer arithmetic. Its 31.7% lead in PassMark multithread, 96.8% lead in integer math, and 62.1% lead in data compression make it the clear pick for compilation, data processing, encryption, and general parallel compute. The 10 out of 15 head-to-head wins reinforce this conclusion.

The Intel Core Ultra 5 250KF Plus is the better option for single-thread-bound tasks. Its 63.5% lead in Cinebench R23 single-core and 43.3% lead in Cinebench R15 single-core are decisive. Applications that rely heavily on a single fast core, such as certain legacy software or lightly threaded renderers, would favor the Intel. The Intel also wins Cinebench R23 multi-core by 4.2%, which is surprising given its 18 threads versus the AMD's 32, but the recorded data supports this result.

The AMD Ryzen 9 9950X has a higher average benchmark score (74640 vs 66159) and a higher percentile rank (94 vs 93). The Intel has a lower TDP (125 vs 170), which the data records, though no thermal or power efficiency benchmarks are present to quantify that difference in practice. Both parts have unlocked multipliers, so overclocking is possible on either platform.

For buyers who prioritize raw multi-threaded throughput and integer performance, the AMD Ryzen 9 9950X is the data-backed selection. For those who need maximum single-core speed and are willing to accept lower multi-thread scores in some tests, the Intel Core Ultra 5 250KF Plus is the recorded leader. The Intel's 4.2% Cinebench R23 multi-core win should not be ignored, but it stands alone against several larger AMD victories in other multi-thread tests.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 9950X has an average benchmark score of 74640, while the Intel Core Ultra 5 250KF Plus has 66159.

Q: How many head-to-head tests does each processor win?

A: The AMD Ryzen 9 9950X wins 10 of the 15 recorded head-to-head comparisons, and the Intel Core Ultra 5 250KF Plus wins 5.

Q: What is the largest single-test margin between the two?

A: The largest margin is in PassMark integer math, where the AMD Ryzen 9 9950X scores 242097 versus the Intel's 123030, a delta of 96.8%.

Q: In which test does the Intel Core Ultra 5 250KF Plus have its biggest lead?

A: The Intel wins Cinebench R23 single-core with 6030 versus the AMD's 2202, a delta of -63.5% from the AMD's perspective.

Q: Does the Intel Core Ultra 5 250KF Plus win any multi-threaded test?

A: Yes, the Intel wins Cinebench R23 multi-core with 42718 versus the AMD's 40924, a 4.2% margin. It loses Cinebench R15 multi-core by 47.2%, however.

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 9950X has 16 cores and 32 threads. The Intel Core Ultra 5 250KF Plus has 18 cores and 18 threads. The Intel has more cores, but the AMD has more threads.

Specification Differences

The AMD Ryzen 9 9950X and Intel Core Ultra 5 250KF Plus differ across nearly every specification field. The AMD uses 16 cores and 32 threads, while the Intel uses 18 cores and 18 threads. Base clocks are 4.30 GHz for the AMD and 4.20 GHz for the Intel. Boost clocks are 5.70 GHz for the AMD and 5.30 GHz for the Intel. The AMD has a TDP of 170, the Intel has a TDP of 125.

The AMD is built for AMD Socket AM5, the Intel for Intel Socket 1851. The AMD's process node is 4 nm, the Intel's is 3 nm. The AMD has 16,630 million transistors across a die size of 2x 70.6 mm², while the Intel has 17,800 million transistors on a single die of 243 mm². The AMD's L1 cache is 80 KB per core, the Intel's is 192 KB per core. The AMD's L2 cache is 1 MB per core, the Intel's is 3 MB per core. The AMD has 64 MB of L3 cache, the Intel has 30 MB shared. The AMD supports dual-channel DDR5 with 89.6 GB/s memory bandwidth, the Intel supports dual-channel DDR5 with 115.2 GB/s. Both support ECC memory. The AMD has 24 PCIe Gen 5 lanes (CPU only), the Intel has 20. The AMD includes integrated Radeon Graphics, the Intel has no integrated graphics (N/A). The AMD's launch MSRP is $649, the Intel's launch MSRP is $184. The AMD was released on 2024-08-14, the Intel on 2026-03-10. Both have unlocked multipliers.

Architecture Differences

The AMD Ryzen 9 9950X is based on the Zen 5 architecture with the codename Granite Ridge, part of the 9000 series. The Intel Core Ultra 5 250KF Plus is based on the Arrow Lake Refresh codename, part of Core Ultra Series 2. The AMD's generation is listed as Ryzen 9 (Zen 5 (Granite Ridge)), the Intel's as Ultra 5 (Arrow Lake). The AMD is fabricated by TSMC on a 4 nm process, the Intel is also fabricated by TSMC but on a 3 nm process.

The AMD uses a chiplet design with two dies of 70.6 mm² each, while the Intel uses a single 243 mm² die. The AMD has a symmetric core layout: 16 cores with 32 threads, meaning each core supports two threads. The Intel has 18 cores with 18 threads, meaning each core supports one thread. The cache hierarchy differs significantly: the AMD has 80 KB L1 and 1 MB L2 per core with 64 MB L3, while the Intel has 192 KB L1 and 3 MB L2 per core with 30 MB shared L3. The AMD's total L3 is larger, but the Intel's per-core L2 is larger.

The AMD integrates Radeon Graphics, so it can output video without a discrete GPU. The Intel has no integrated graphics, which is consistent with its "KF" designation. The AMD has 24 CPU-attached PCIe Gen 5 lanes, the Intel has 20. Memory bandwidth favors the Intel at 115.2 GB/s versus the AMD's 89.6 GB/s, despite both using dual-channel DDR5. Both processors support ECC memory, and both have unlocked multipliers for overclocking.

Where Each One Wins

The AMD Ryzen 9 9950X wins in workloads that use many threads and integer operations. The 96.8% lead in PassMark integer math is the standout result, indicating strong performance in code compilation, data transformation, and general arithmetic-heavy processing. The 62.1% lead in data compression and 40.4% lead in random string sorting point to strong performance in archiving, database operations, and text processing. The 31.7% lead in PassMark multithread confirms that the AMD's 32 threads provide a real advantage in parallel workloads. The AMD also wins data encryption by 7.4% and physics by 3%, though these margins are smaller. The AMD's 3DMark scores, while not directly comparable to the Intel, show a capable part: 16780 in max-thread and 16263 in 16-thread tests.

The Intel Core Ultra 5 250KF Plus wins in single-core-bound scenarios. The 63.5% lead in Cinebench R23 single-core and 43.3% lead in Cinebench R15 single-core are the largest margins in the head-to-head set. This makes the Intel the better choice for applications that cannot use more than one or two threads effectively. The Intel also wins Cinebench R23 multi-core by 4.2%, which is notable given the thread count disadvantage. The Intel's 0.5% lead in floating point math is minimal, but it does indicate parity in that specific area. The 23.7% lead in find prime numbers shows an advantage in integer iteration tasks that scale poorly with thread count.

The single-thread PassMark test is essentially a tie, with the AMD ahead by 0.8% (4737 vs 4698). The two processors are nearly identical in that measure, so single-thread PassMark should not be used to differentiate them. The real differentiation comes from the Cinebench single-core tests, where the Intel leads by large margins, and the multi-thread PassMark and integer tests, where the AMD leads by large margins.

The Intel's higher memory bandwidth (115.2 GB/s vs 89.6 GB/s) is recorded in the specifications, but no benchmark in the head-to-head set directly isolates memory throughput. The Intel's 3 nm process node and larger die (243 mm² vs 2x 70.6 mm²) are architectural facts, but their performance impact is not directly measured in the available data. The AMD's larger L3 cache (64 MB vs 30 MB) may contribute to its data compression and sorting wins, though the recorded benchmarks do not isolate cache effects.

In summary, the AMD Ryzen 9 9950X is the data-backed winner for multithreaded integer work, compression, encryption, and general parallel compute. The Intel Core Ultra 5 250KF Plus is the data-backed winner for single-core speed, prime number calculations, and one specific Cinebench multi-core test. The AMD holds the higher average score and percentile rank, but the Intel's single-core leads are too large to ignore for single-threaded applications.