AMD Ryzen 5 PRO 7645 vs Intel Core i7-13650HX Comparison

Head-to-Head Benchmarks

The benchmark data presents a decisive picture: the Intel Core i7-13650HX wins 16 of the 17 head-to-head comparisons, with only a single victory for the AMD Ryzen 5 PRO 7645. The margins, however, vary wildly depending on the workload.

Starting with the multi-threaded Cinebench tests, Intel’s advantage is consistent. In Cinebench R23 multicore, the i7-13650HX scores 24,580 against the Ryzen’s 21,710, a 13.2% lead. That gap expands in Cinebench R20 multicore, where Intel scores 10,731 versus 9,118, a 17.7% edge. The R15 multicore test shows the same pattern: 2,477 versus 2,188, again a 13.2% delta. The story is identical in single-core Cinebench runs. The i7-13650HX posts 3,470 in R23 single-core versus 3,065 for the Ryzen, a 13.2% margin; R20 single-core shows 1,514 versus 1,287, a 17.6% lead; R15 single-core is 349 versus 308, a 13.3% edge.

The largest deltas appear in computational workloads. PassMark floating-point math heavily favors Intel, with a score of 75,643 versus 45,202, a massive 67.3% advantage. Integer math also goes Intel’s way: 102,929 versus 74,782, a 37.6% margin. Data compression is another stronghold for Intel, scoring 383,943 versus 286,298, a 34.1% lead, while data encryption shows a 30% gap (21,649 versus 16,657). Extended instructions are closer, with Intel ahead by just 6.1% (23,146 versus 21,813).

In PassMark’s multithread and physics tests, Intel leads by 20.5% (30,704 versus 25,489) and 9.2% (1,745 versus 1,598) respectively. Random string sorting favors Intel by 19.1% (41,162 versus 34,557). Finally, the single-thread PassMark score is close: Intel’s 3,769 versus AMD’s 3,652, a slim 3.2% margin.

The lone AMD win comes in PassMark’s find prime numbers test. Here, the Ryzen 5 PRO 7645 scores 198, while the Intel chip manages only 103, a 48% deficit for Intel. This is a notable reversal, indicating a specific workload where the Zen 4 architecture’s efficiency shines through.

Where Each One Wins

The Intel Core i7-13650HX is the clear winner for heavily parallel workloads. Its 14 cores and 20 threads, combined with a larger L3 cache (24 MB shared), allow it to dominate in rendering, physics simulations, and integer-heavy calculations. The 67.3% lead in floating-point math suggests a strong advantage in scientific computing and financial modeling. Data compression and encryption tasks, common in database servers and file archiving, also show Intel superiority by over 30%. For any user running Cinebench, video encoding, or 3D rendering, the data points exclusively to the Intel part.

The AMD Ryzen 5 PRO 7645’s single victory in prime number finding is not an outlier to dismiss. Prime number sieving is a latency-sensitive, branch-heavy workload that relies on efficient core-to-cache communication. The Ryzen’s 32 MB shared L3 cache and 5.10 GHz boost clock likely contribute to this result. For users running cryptographic key generation or mathematical research that involves prime factorization, the AMD chip holds a specific, measurable edge.

The single-thread performance gap is small. Intel leads by only 3.2% in PassMark single-thread, and the Cinebench single-core deltas of 13.2% to 17.6% are still clear wins for Intel. However, the close PassMark result suggests that for everyday responsiveness, web browsing, and light office tasks, the two processors are nearly indistinguishable. The Ryzen’s higher base clock (3.80 GHz versus 2.60 GHz) does not translate into a benchmark win, but it may help in short bursts of activity where boost algorithms are less relevant.

The Verdict

The benchmark data is unambiguous for multi-threaded and compute-heavy use. The Intel Core i7-13650HX is the superior processor in 16 of 17 recorded tests. Its wins in Cinebench R23 multicore (24,580 versus 21,710) and floating-point math (75,643 versus 45,202) make it the default choice for video editors, 3D artists, and software developers who compile large codebases. The 20.5% lead in PassMark multithread reinforces this verdict for general productivity with many concurrent applications.

The AMD Ryzen 5 PRO 7645 is the pick only for users whose primary workload is prime number calculations or similar branch-prediction-heavy tasks. Its 48% advantage in that single test is the only data-driven reason to choose it. Additionally, the Ryzen’s 83.2 GB/s memory bandwidth and 5 nm process node suggest it may draw less power, but the database does not include wattage measurements to confirm this. The Ryzen also has 6 cores and 12 threads, which is exactly half the Intel’s core count, explaining the multi-core deficits.

For a mobile workstation, the Intel part’s 14 cores and 20 threads provide a level of parallel performance that the 6-core Ryzen cannot match. The Intel’s 4.90 GHz boost clock, while lower than AMD’s 5.10 GHz, does not harm its single-core results, which are consistently ahead. The verdict: choose Intel for almost all scenarios, and AMD only for the niche prime-number workload.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i7-13650HX has 14 cores and 20 threads, while the AMD Ryzen 5 PRO 7645 has 6 cores and 12 threads.

Q: What is the largest benchmark margin between these two CPUs?

A: The largest margin is in PassMark floating-point math, where the Intel Core i7-13650HX leads by 67.3% (75,643 versus 45,202).

Q: Is there any test where the AMD Ryzen 5 PRO 7645 wins?

A: Yes, the AMD Ryzen 5 PRO 7645 wins the PassMark find prime numbers test, scoring 198 versus Intel’s 103, a 48% advantage.

Q: How do they compare in single-thread performance?

A: Intel wins all single-thread tests. In Cinebench R23 single-core, Intel scores 3,470 versus AMD’s 3,065, a 13.2% lead. In PassMark single-thread, Intel leads by a smaller 3.2% (3,769 versus 3,652).

Q: What are the process nodes and foundries for these chips?

A: The Intel Core i7-13650HX is built on a 10 nm process at Intel, while the AMD Ryzen 5 PRO 7645 uses a 5 nm process at TSMC.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i7-13650HX and the AMD Ryzen 5 PRO 7645 have ECC memory support enabled.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Core i7-13650HX uses the Raptor Lake architecture, specifically the Raptor Lake-HX codename, built on Intel’s 10 nm process. It is a 14-core, 20-thread part with a die size of 257 mm². The AMD Ryzen 5 PRO 7645 uses the Zen 4 architecture with the Raphael codename, fabricated by TSMC on a 5 nm process. It packs 6 cores and 12 threads into a much smaller 71 mm² die, with 6,570 million transistors.

Cache hierarchies differ significantly. Intel allocates 80 KB of L1 cache per core, 2 MB of L2 per core, and a shared 24 MB L3 cache. AMD provides 64 KB of L1 per core, 1 MB of L2 per core, and a larger 32 MB shared L3 cache. The larger L3 on the AMD chip may explain its win in the prime number test, where larger cache pools help with iterative data access.

Memory support also diverges. Intel supports both DDR4 and DDR5 memory over a dual-channel bus. AMD supports only DDR5, also dual-channel, but the database records a specific memory bandwidth of 83.2 GB/s for the AMD part. Intel’s memory bandwidth is not recorded.

PCIe lanes are another differentiator. Intel offers Gen 5 with 20 lanes (CPU only), while AMD provides Gen 5 with 24 lanes (CPU only). This gives AMD a potential advantage in expandability for workstation tasks, though the benchmark data does not test this directly.

Integrated graphics differ: Intel ships UHD Graphics 710, while AMD includes Radeon Graphics. Neither is benchmarked here, so no performance conclusion can be drawn.

The Intel part has an unlocked multiplier, making it overclockable, while the AMD chip is locked. The Intel’s launch MSRP was $485; the AMD part has no recorded launch MSRP. The AMD processor is marked as a Server/Workstation segment part, whereas Intel’s is marked Mobile, despite both being used in similar contexts. The Intel part was released on 2023-01-03, and the AMD part on 2023-06-12. Both are currently active in production. The Intel part number is SRMED, and the AMD part number is 100-000000600.

The process node difference (10 nm Intel versus 5 nm TSMC) is the clearest architectural gap, but the benchmark results show that Intel’s larger core count and higher thread count overcome the node advantage in most tests. The Ryzen’s higher boost clock (5.10 GHz versus 4.90 GHz) does not translate into single-core wins, suggesting that Intel’s per-core IPC, as measured by the Cinebench scores, is higher despite the older node.