AMD Ryzen 5 PRO 8640HS vs Intel Core Ultra 5 225T Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core Ultra 5 225T records an average benchmark score of 30468, while the AMD Ryzen 5 PRO 8640HS records 28478. The Intel part sits at the 82nd percentile of all CPUs, and the AMD part sits at the 80th percentile.

Q: How large is the Cinebench R23 multi-core gap?

A: The Intel Core Ultra 5 225T scores 21971 in Cinebench R23 multi-core versus 18104 for the AMD Ryzen 5 PRO 8640HS, a delta of -17.6% from the AMD part's perspective. The same -17.6% delta appears across all three Cinebench versions listed.

Q: Are there any tests where the AMD processor wins?

A: Yes. The AMD Ryzen 5 PRO 8640HS wins PassMark data compression (246446 vs 233998), PassMark integer math (69839 vs 59543), and PassMark random string sorting (30235 vs 28774). That gives AMD 3 wins out of 17 head-to-head tests.

Q: What is the single-thread performance difference?

A: The Intel Core Ultra 5 225T scores 3101 in Cinebench R23 single-core and 4348 in PassMark single-thread. The AMD Ryzen 5 PRO 8640HS scores 2555 and 3561 in those same tests, with deltas of -17.6% and -18.1% respectively.

Q: How do the two compare in memory bandwidth?

A: The Intel Core Ultra 5 225T supports 102.4 GB/s of memory bandwidth, while the AMD Ryzen 5 PRO 8640HS supports 89.6 GB/s. Both use dual-channel DDR5, but Intel's figure is higher.

Q: Which processor has more cores?

A: The Intel Core Ultra 5 225T has 10 cores and 10 threads. The AMD Ryzen 5 PRO 8640HS has 6 cores and 12 threads. Intel has more physical cores, while AMD uses simultaneous multithreading to reach a higher thread count.

Architecture Differences

The AMD Ryzen 5 PRO 8640HS and Intel Core Ultra 5 225T represent two fundamentally different design approaches. The AMD part uses the Zen 4 architecture under the Hawk Point codename, while the Intel part uses the Arrow Lake architecture under the Arrow Lake-S codename. Both are built by TSMC, but at different process nodes: AMD uses 4 nm, and Intel uses 3 nm.

The transistor counts differ substantially. The AMD chip integrates 25,000 million transistors on a 178 mm² die, while the Intel chip integrates 17,800 million transistors on a 243 mm² die. That means AMD packs more transistors into a smaller area, while Intel spreads fewer transistors across a larger die.

Cache organization also differs. The AMD Ryzen 5 PRO 8640HS has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The Intel Core Ultra 5 225T has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 20 MB of shared L3 cache. Intel's per-core cache allocations are larger across all three levels.

The integrated graphics differ as well. AMD uses the Radeon 760M, while Intel uses the Arc Xe-LPG Graphics 16EU. The AMD part is a mobile processor on AMD Socket FP7, and the Intel part is a desktop processor on Intel Socket 1851. Neither processor has an unlocked multiplier.

Memory support is DDR5 for both, and both use dual-channel memory buses. However, the AMD processor supports ECC memory, while the Intel processor does not. PCIe generation differs: AMD uses Gen 4 with 20 CPU lanes, and Intel uses Gen 5 with 20 CPU lanes.

The market segments differ. The AMD Ryzen 5 PRO 8640HS is classified as a mobile processor, released on 2024-04-15. The Intel Core Ultra 5 225T is classified as a desktop processor, released on 2024-12-31. Both remain active in production.

Where Each One Wins

The head-to-head benchmark data splits cleanly along workload type. The Intel Core Ultra 5 225T wins 14 of 17 tests, covering rendering, encryption, floating-point math, physics, and single-thread performance. The AMD Ryzen 5 PRO 8640HS wins 3 tests, all in specific PassMark workloads: data compression, integer math, and random string sorting.

The Intel part's wins are broad and often large. In Cinebench R23 multi-core, it leads by 17.6%. In PassMark floating-point math, it scores 82751 versus 43019, a 48% advantage. In PassMark physics, it scores 2053 versus 1043, a 49.2% advantage. In PassMark find prime numbers, it scores 284 versus 71, a 75% advantage. These are not marginal leads; they reflect different computational strengths.

The AMD part's wins are narrower but consistent. It leads by 5.3% in data compression, by 17.3% in integer math, and by 5.1% in random string sorting. The integer math result is the largest AMD win, and it suggests the Zen 4 integer pipeline handles that workload more efficiently than Arrow Lake.

Single-thread performance favors Intel decisively. The Intel part leads by 17.6% in Cinebench R23 single-core and by 18.1% in PassMark single-thread. Multi-thread performance also favors Intel, with a 15.4% lead in PassMark multithread and a 17.6% lead in Cinebench R23 multi-core.

For workloads involving rendering, physics simulation, encryption, and floating-point math, the data points to the Intel Core Ultra 5 225T. For workloads involving compression, integer-heavy processing, and string sorting, the AMD Ryzen 5 PRO 8640HS holds the advantage.

Specification Differences

The two processors differ across nearly every specification category.

Cores and threads: AMD has 6 cores and 12 threads. Intel has 10 cores and 10 threads.

Clock speeds: AMD has a base clock of 3.50 GHz and a boost clock of 4.90 GHz. Intel has a base clock of 2.50 GHz and a boost clock of 4.90 GHz. Both reach the same boost clock, but AMD starts from a higher base.

TDP: AMD is rated at 28 W. Intel is rated at 65 W.

Process node: AMD uses 4 nm. Intel uses 3 nm. Both use TSMC as the foundry.

Transistors: AMD integrates 25,000 million. Intel integrates 17,800 million.

Die size: AMD measures 178 mm². Intel measures 243 mm².

Cache: AMD has 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. Intel has 192 KB L1 per core, 3 MB L2 per core, and 20 MB shared L3.

Memory bandwidth: AMD supports 89.6 GB/s. Intel supports 102.4 GB/s.

ECC memory: AMD supports it. Intel does not.

PCIe: AMD uses Gen 4 with 20 lanes. Intel uses Gen 5 with 20 lanes.

Socket: AMD uses Socket FP7. Intel uses Socket 1851.

Integrated graphics: AMD uses Radeon 760M. Intel uses Arc Xe-LPG Graphics 16EU.

Market segment: AMD is mobile. Intel is desktop.

Release date: AMD released on 2024-04-15. Intel released on 2024-12-31.

Head-to-Head Benchmarks

The Cinebench suite shows a uniform pattern across all three versions. In Cinebench R15 multi-core, the Intel Core Ultra 5 225T scores 2214 versus 1824 for the AMD Ryzen 5 PRO 8640HS, a 17.6% delta. In Cinebench R15 single-core, Intel scores 312 versus 257, also a 17.6% delta. The same percentage appears in Cinebench R20 multi-core (9227 vs 7603), Cinebench R20 single-core (1302 vs 1073), Cinebench R23 multi-core (21971 vs 18104), and Cinebench R23 single-core (3101 vs 2555). The consistency of this delta across all six Cinebench results indicates a stable per-clock advantage for the Intel architecture in that workload family.

PassMark results show a more varied picture. The largest Intel win is in find prime numbers, where Intel scores 284 versus 71, a 75% delta. Floating-point math shows Intel at 82751 versus 43019, a 48% delta. Physics shows Intel at 2053 versus 1043, a 49.2% delta. Data encryption shows Intel at 18289 versus 14962, an 18.2% delta. Extended instructions show Intel at 20083 versus 18507, a 7.8% delta. PassMark multithread shows Intel at 25358 versus 21465, a 15.4% delta. PassMark single-thread shows Intel at 4348 versus 3561, an 18.1% delta.

The AMD wins are concentrated in three PassMark tests. Data compression shows AMD at 246446 versus 233998, a 5.3% delta. Integer math shows AMD at 69839 versus 59543, a 17.3% delta. Random string sorting shows AMD at 30235 versus 28774, a 5.1% delta.

The overall win count is 14 for Intel and 3 for AMD. The average benchmark score difference is 1990 points in favor of Intel (30468 vs 28478). Intel's nearest rivals include the Intel Core i9-11980HK at 30422 (0.2% delta) and the AMD Ryzen 5 7640HS at 30390 (0.3% delta). AMD's nearest rivals include the Intel Xeon E-2436 at 28530 (-0.2% delta) and the AMD Ryzen 7 PRO 6850HS at 28549 (-0.2% delta). The recorded data places the Intel part slightly higher in the overall CPU distribution, at the 82nd percentile versus the 80th percentile for AMD.