AMD Ryzen Threadripper PRO 9955WX vs Intel Core Ultra 7 270K Plus Comparison

Head-to-Head Benchmarks

The benchmark database pits the AMD Ryzen Threadripper PRO 9955WX against the Intel Core Ultra 7 270K Plus across 17 recorded tests. The final tally shows AMD taking 10 wins and Intel taking 7, but the margin of victory tells a more nuanced story than the raw count.

The most dramatic separation occurs in Cinebench R23 single-core, where the AMD Ryzen Threadripper PRO 9955WX scores 8399 against Intel's 2439, a 244.4% advantage. This is the largest delta in the entire head-to-head set. The same test in multicore shows AMD ahead by 34.4%, with scores of 59494 versus 44253. Cinebench R20 mirrors this pattern: AMD wins multicore by 2.2% (24987 to 24461) and single-core by 2.1% (3527 to 3453). The R15 results diverge, however, with Intel taking the multicore test by 9.9% (6656 to 5996), while AMD dominates single-core by 139% (846 to 354).

PassMark tests split the field more evenly. AMD wins data compression by 14.5% (920954 to 804322), extended instructions by 20.2% (76363 to 63506), integer math by 34.2% (236120 to 175986), physics by 2.3% (4156 to 4064), and random string sorting by 3% (99813 to 96945). Intel counters with data encryption by 24.9% (59097 to 44389), find prime numbers by 45.2% (615 to 337), floating point math by 31.9% (229491 to 156215), multithread by 2.2% (68574 to 67035), and single-thread by 10.6% (5068 to 4530).

The average benchmark scores place the AMD part at 101041, which sits 1.2% below the AMD EPYC 7513 and 2.2% below the AMD EPYC 8324P, while running 1.7% ahead of the AMD EPYC 4585PX and 2.6% ahead of the AMD Ryzen Threadripper PRO 5965WX. The Intel part averages 93785, essentially tied with the Intel Xeon 6520P at a 0% delta, while trailing the AMD EPYC 4564P by 1.5%, the AMD EPYC 9175F by 1.9%, and the AMD EPYC 4565P by 2.1%. Percentile rankings show AMD at 97th percentile versus Intel at 96th percentile among all CPUs in the database.

Where Each One Wins

The workload split follows architectural strengths. AMD's Zen 5 design, with 16 cores and 32 threads, dominates integer-heavy and compression-oriented tasks. The 34.2% lead in PassMark integer math and 14.5% lead in data compression indicate strong per-thread execution for general compute. The extended instructions victory by 20.2% suggests superior SIMD throughput for specialized workloads. Physics simulation also favors AMD, though narrowly at 2.3%.

Intel's Arrow Lake Refresh architecture, with 24 cores and 24 threads, excels in floating point and encryption. The 31.9% win in floating point math and 24.9% win in data encryption are substantial margins. Prime number finding shows Intel at 45.2% ahead, a test that often rewards raw clock speed and branch prediction. The single-thread PassMark result favors Intel by 10.6%, and the multithread score edges Intel ahead by 2.2%. Cinebench R15 multicore also goes to Intel by 9.9%, an older test that may favor Intel's core count.

AMD's Cinebench R23 single-core result, 244.4% ahead, is the standout outlier. This suggests the Ryzen Threadripper's boost behavior and Zen 5 single-thread efficiency are exceptional in that specific benchmark. The R20 single-core win by 2.1% and R15 single-core win by 139% confirm AMD's single-thread dominance across the Cinebench family, despite Intel's PassMark single-thread victory.

The Verdict

The database points to two distinct buyer profiles. The AMD Ryzen Threadripper PRO 9955WX is the choice for workloads that stress integer math, compression, extended instructions, and Cinebench rendering. Its 34.4% multicore advantage in Cinebench R23 and 34.2% integer math lead make it the stronger pick for CPU-bound creative applications. The 16-core, 32-thread configuration with 64 MB of L3 cache and eight-channel DDR5 memory support (409.6 GB/s bandwidth) provides a platform for heavily threaded professional tasks.

The Intel Core Ultra 7 270K Plus wins for floating-point-heavy simulations, encryption, prime number calculations, and general single-thread PassMark performance. Its 24-core, 24-thread setup with 36 MB shared L3 cache and dual-channel memory (115.2 GB/s bandwidth) delivers 10.6% higher PassMark single-thread scores. The 45.2% find-prime-numbers advantage and 31.9% floating point lead indicate strength in scientific computing and cryptography.

For users whose primary benchmark is Cinebench R23 multicore, the AMD part's 34.4% margin is decisive. For those prioritizing PassMark multithread or floating point, Intel's wins by 2.2% and 31.9% respectively are notable. The overall average benchmark score favors AMD by 7.7% (101041 versus 93785), and the 97th versus 96th percentile ranking reflects that aggregate edge.

FAQ

Q: Which CPU has the higher average benchmark score?

A: The AMD Ryzen Threadripper PRO 9955WX averages 101041, while the Intel Core Ultra 7 270K Plus averages 93785.

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

A: Cinebench R23 single-core shows AMD ahead by 244.4%, scoring 8399 versus Intel's 2439.

Q: Does Intel win any multicore tests?

A: Yes, Intel wins Cinebench R15 multicore by 9.9% and PassMark multithread by 2.2%.

Q: How do they compare in encryption performance?

A: Intel leads PassMark data encryption by 24.9%, scoring 59097 against AMD's 44389.

Q: What are the core and thread counts?

A: AMD has 16 cores and 32 threads; Intel has 24 cores and 24 threads.

Q: Which processor has better memory bandwidth?

A: AMD supports eight-channel DDR5 with 409.6 GB/s bandwidth, while Intel supports dual-channel DDR5 with 115.2 GB/s.

Architecture Differences

The AMD Ryzen Threadripper PRO 9955WX uses the Zen 5 architecture on a 4 nm TSMC process, with a die size of 2x 70.6 mm² and 16,630 million transistors. It fits the AMD Socket sTR5 and draws a 350 W TDP. Base clock is 4.50 GHz, boost clock is 5.40 GHz. Cache layout includes 64 KB L1 per core, 1 MB L2 per core, and 64 MB L3. It supports PCIe Gen 5 with 128 lanes and has no integrated graphics.

The Intel Core Ultra 7 270K Plus uses the Arrow Lake Refresh codename on a 3 nm TSMC process, with a die size of 243 mm² and 17,800 million transistors. It fits Intel Socket 1851 and draws a 125 W TDP. Base clock is 3.70 GHz, boost clock is 5.50 GHz. Cache includes 192 KB L1 per core, 3 MB L2 per core, and 36 MB shared L3. It supports PCIe Gen 5 with 20 lanes and includes Arc Xe-LPG Graphics 64EU. Both processors support DDR5 memory and ECC, and both have unlocked multipliers.

The transistor counts are close, with Intel at 17,800 million versus AMD at 16,630 million, but the die size differs substantially: Intel's monolithic 243 mm² versus AMD's dual-die 2x 70.6 mm². The process nodes differ by one nanometer, with Intel on 3 nm and AMD on 4 nm. The release dates are separated by roughly eight months: AMD launched on 2025-07-22, Intel on 2026-03-10. The launch MSRP for AMD is $1649, while Intel's is $299. Memory channels are the largest functional gap: AMD provides eight channels versus Intel's two, yielding 409.6 GB/s versus 115.2 GB/s bandwidth. PCIe lane counts also diverge sharply: 128 lanes for AMD versus 20 for Intel.