AMD Ryzen AI 7 450 vs Intel Core Ultra 5 225H Comparison

The Verdict

The recorded data splits these two mobile processors cleanly by workload type. The AMD Ryzen AI 7 450 wins the majority of the Cinebench multicore tests and several PassMark integer and compression tasks, while the Intel Core Ultra 5 225H takes the single-core Cinebench R15 test, all of the floating-point and physics tests, and the PassMark multithread test. The AMD part shows a 25.2% lead in Cinebench R23 multicore, which is its largest victory, while Intel counters with a 59.5% advantage in PassMark find prime numbers, its largest win. The Intel chip also holds a higher PassMark single-thread score (4258 versus 3901, an 8.4% gap) and a higher average benchmark score percentile (82nd versus 87th for AMD, though AMD’s average score is higher at 39485 versus 31508). For users who prioritize sustained multithreaded rendering or integer-heavy work, the Ryzen AI 7 450 is the clear pick. For those who need faster single-thread responsiveness, stronger floating-point math, or better encryption throughput, the Core Ultra 5 225H is the better match. Neither chip has an unlocked multiplier, so overclocking is not a factor in either direction.

Architecture Differences

The two processors come from different design philosophies. The AMD Ryzen AI 7 450 uses the Zen 5 architecture in the Gorgon Point codename, part of the Ryzen AI 400 generation that mixes Zen 5 and Zen 5c cores. It is built on a 4 nm TSMC process with a die size of 195 mm². The Intel Core Ultra 5 225H uses the Arrow Lake architecture in the Arrow Lake-H codename, part of the Core Ultra Series 2 and the Ultra 5 generation. It is built on a 3 nm TSMC process. The AMD chip has 8 cores and 16 threads, while the Intel chip has 14 cores and 14 threads, meaning Intel’s higher core count does not come with simultaneous multithreading. The AMD part has 80 KB of L1 cache per core, 1 MB of L2 per core, and 8 MB of L3 cache. The Intel part has 192 KB of L1 per core, 3 MB of L2 per core, and 18 MB of shared L3 cache. The AMD chip supports ECC memory; the Intel chip does not. The AMD chip uses PCIe Gen 4 with 16 lanes (CPU only), while the Intel chip uses PCIe Gen 5 with 8 lanes (CPU only). Both support DDR5 and LPDDR5X memory in dual-channel mode, but the Intel chip has a higher memory bandwidth rating at 102.4 GB/s versus 89.6 GB/s for AMD. The integrated graphics differ: the AMD part uses Radeon 860M, and the Intel part uses Arc Graphics 130T.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 225H has 14 cores, while the AMD Ryzen AI 7 450 has 8 cores. However, the AMD chip has 16 threads due to simultaneous multithreading, while the Intel chip has 14 threads.

Q: Which processor is faster in Cinebench R23 multicore?

A: The AMD Ryzen AI 7 450 scores 18316 versus 14629.5 for the Intel Core Ultra 5 225H, giving AMD a 25.2% lead in that specific test.

Q: Which processor has better single-thread performance?

A: The Intel Core Ultra 5 225H scores 4258 in PassMark single-thread versus 3901 for the AMD chip, an 8.4% difference. In Cinebench R15 single-core, Intel leads by 25.5% (288.5 versus 215).

Q: Do both processors support ECC memory?

A: No. The AMD Ryzen AI 7 450 supports ECC memory, while the Intel Core Ultra 5 225H does not.

Q: Which processor has a higher memory bandwidth rating?

A: The Intel Core Ultra 5 225H has a 102.4 GB/s rating, compared to 89.6 GB/s for the AMD Ryzen AI 7 450.

Q: What is the process node difference?

A: The Intel Core Ultra 5 225H uses a 3 nm TSMC process, while the AMD Ryzen AI 7 450 uses a 4 nm TSMC process.

Specification Differences

The two processors differ in several key specification fields. The AMD Ryzen AI 7 450 has 8 cores and 16 threads, while the Intel Core Ultra 5 225H has 14 cores and 14 threads. Base clocks are 2.00 GHz for AMD and 1.70 GHz for Intel, while boost clocks are 5.10 GHz for AMD and 4.90 GHz for Intel. Both have a TDP of 28. The socket differs: AMD uses Socket FP8, Intel uses BGA 2049. The L1 cache is 80 KB per core for AMD versus 192 KB per core for Intel. The L2 cache is 1 MB per core for AMD versus 3 MB per core for Intel. The L3 cache is 8 MB for AMD versus 18 MB shared for Intel. Process node is 4 nm for AMD and 3 nm for Intel, both from TSMC. The AMD die size is 195 mm²; the Intel die size is not recorded. ECC memory support is true for AMD and false for Intel. PCIe generation and lanes differ: Gen 4 with 16 lanes for AMD, Gen 5 with 8 lanes for Intel. Memory bandwidth is 89.6 GB/s for AMD and 102.4 GB/s for Intel. Integrated graphics are Radeon 860M for AMD and Arc Graphics 130T for Intel. The AMD part number is 100-000001868, and the Intel part number is SRQAM.

Head-to-Head Benchmarks

The Cinebench results show a split that favors AMD in multicore but Intel in one single-core test. In Cinebench R15 multicore, AMD scores 2713 against Intel’s 2397.5, a 13.2% lead. In Cinebench R23 multicore, AMD scores 18316 against Intel’s 14629.5, a 25.2% lead. In Cinebench R15 single-core, Intel wins 288.5 versus 215, a 25.5% advantage for Intel. In Cinebench R23 single-core, AMD wins narrowly at 2038 versus 1969, a 3.5% lead.

PassMark results are more mixed. AMD wins data compression (315906 versus 283451, 11.4% lead), extended instructions (22400 versus 21915, 2.2% lead), integer math (88531 versus 68520, 29.2% lead), and random string sorting (35648 versus 33654, 5.9% lead). Intel wins data encryption (21428 versus 16247, 24.2% lead), find prime numbers (220 versus 89, 59.5% lead), floating-point math (86540 versus 54447, 37.1% lead), multithread (28119 versus 26350, 6.3% lead), physics (1877 versus 1578, 15.9% lead), and single-thread (4258 versus 3901, 8.4% lead). The head-to-head tally shows Intel with 8 wins and AMD with 7 wins across the 15 recorded tests.

Where Each One Wins

The AMD Ryzen AI 7 450 dominates in Cinebench multicore workloads, with a 25.2% lead in R23 and a 13.2% lead in R15. It also wins integer math by 29.2%, which indicates strong performance in tasks that rely on integer arithmetic, and data compression by 11.4%. Random string sorting goes to AMD by 5.9%, and extended instructions by 2.2%. The AMD chip also edges out Intel in Cinebench R23 single-core by 3.5%. These results point to a processor that handles multithreaded rendering, integer-heavy computation, and compression workloads efficiently.

The Intel Core Ultra 5 225H wins the largest single-core margin in Cinebench R15, at 25.5% over AMD. It also takes PassMark single-thread by 8.4%, which matters for applications that are not well-threaded. The floating-point math result is a major Intel win at 37.1% ahead, and the find prime numbers test shows a 59.5% advantage, suggesting strong performance in prime-finding or similar algorithmic workloads. Data encryption is 24.2% ahead for Intel, and physics is 15.9% ahead. The PassMark multithread test goes to Intel by 6.3%, even though AMD wins the Cinebench multicore tests, indicating that the two chips respond differently to different multithreaded workloads. The Intel chip also has a higher memory bandwidth rating (102.4 GB/s versus 89.6 GB/s), which may contribute to its wins in memory-sensitive tasks like encryption. For workloads dominated by floating-point math, encryption, or single-thread responsiveness, the Intel Core Ultra 5 225H is the stronger choice. For Cinebench-style rendering and integer math, the AMD Ryzen AI 7 450 is the better pick.