AMD Ryzen 5 PRO 8645HS vs AMD Ryzen 7 8845HS Comparison

Where Each One Wins

The benchmark data splits these two mobile processors into clear usage profiles. The AMD Ryzen 7 8845HS wins 10 of the 15 recorded head-to-head comparisons, while the AMD Ryzen 5 PRO 8645HS takes 5. That raw win count, however, hides the nature of the victories.

The Ryzen 7 8845HS dominates in heavily threaded and compute-intensive workloads. Its PassMark integer math score of 97,747 is 25.6% ahead of the Ryzen 5 PRO's 72,740. Floating point math shows a similar gap: 59,254 versus 45,481, a 23.2% advantage. Data compression, encryption, extended instruction sets, prime number finding, physics simulation, multithread performance, and random string sorting all favor the eight-core chip. This is the processor for content creation, compilation, scientific computing, and any task that scales across cores.

The Ryzen 5 PRO 8645HS wins in single-threaded and lightly threaded scenarios. Its PassMark single-thread score of 3,858 beats the Ryzen 7's 3,738 by 3.2%. In Cinebench R15 single-core, it scores 280 versus 276, a 1.4% edge. The most striking result is Cinebench R23 single-core, where the Ryzen 5 PRO scores 2,787 against the Ryzen 7's 1,769, a massive 57.5% difference. The Ryzen 5 PRO also wins Cinebench R23 multi-core at 19,742 versus 16,192, a 21.9% advantage, which contradicts the overall multi-thread trend and suggests the Ryzen 7's R23 result may be an outlier or thermally constrained in the database.

For everyday responsiveness, browser work, office applications, and legacy software that relies on single-core speed, the Ryzen 5 PRO 8645HS is the stronger choice. The Ryzen 7 8845HS is the pick for sustained parallel workloads.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 7 8845HS boosts to 5.10 GHz, while the AMD Ryzen 5 PRO 8645HS reaches 5.00 GHz.

Q: How many cores and threads does each processor have?

A: The Ryzen 5 PRO 8645HS has 6 cores and 12 threads. The Ryzen 7 8845HS has 8 cores and 16 threads.

Q: What is the difference in integrated graphics?

A: The Ryzen 5 PRO 8645HS uses the Radeon 760M, while the Ryzen 7 8845HS uses the Radeon 780M.

Q: Which processor supports ECC memory?

A: The Ryzen 5 PRO 8645HS supports ECC memory. The Ryzen 7 8845HS does not.

Q: What are the average benchmark scores for each chip?

A: The Ryzen 5 PRO 8645HS has an average benchmark score of 30,879, placing it in the 82nd percentile of all CPUs. The Ryzen 7 8845HS averages 29,955, placing it in the 81st percentile.

Q: Which processor wins more head-to-head benchmark comparisons?

A: The Ryzen 7 8845HS wins 10 comparisons, while the Ryzen 5 PRO 8645HS wins 5.

Head-to-Head Benchmarks

The largest victory for the Ryzen 7 8845HS comes in PassMark integer math, where it scores 97,747 against 72,740, a 25.6% margin. This aligns with its two additional cores and four additional threads. Floating point math shows a 23.2% gap at 59,254 versus 45,481. Data compression is also strongly in favor of the Ryzen 7, with 344,439 versus 265,826, a 22.8% difference. The same 22.8% margin appears in Cinebench R15 multi-core, where the Ryzen 7 scores 2,575 versus 1,989.

The Ryzen 7 maintains its lead across encryption (20,416 versus 17,387, a 14.8% edge), extended instructions (25,642 versus 21,212, 17.3%), prime number finding (87 versus 73, 16.1%), physics (1,347 versus 1,208, 10.3%), random string sorting (41,446 versus 35,472, 14.4%), and the PassMark multithread test (28,498 versus 23,569, 17.3%).

The Ryzen 5 PRO 8645HS counters in single-threaded tests. Its PassMark single-thread score of 3,858 exceeds the Ryzen 7's 3,738 by 3.2%. Cinebench R15 single-core gives it a narrow 1.4% win at 280 versus 276. The Cinebench R23 single-core result is extraordinary: 2,787 versus 1,769, a 57.5% advantage for the Ryzen 5 PRO. That same chip also wins Cinebench R23 multi-core with 19,742 versus 16,192, a 21.9% lead, which is unexpected given the Ryzen 7's higher core count.

The Ryzen 7 8845HS also carries additional 3DMark results in the database, including 7,413 max-thread, 7,404 sixteen-thread, 6,085 eight-thread, 3,690 four-thread, 1,924 two-thread, and 990 single-thread scores. These numbers further confirm its multi-threaded strength, though no direct Ryzen 5 PRO equivalents exist for direct comparison.

Specification Differences

The two processors differ in several fundamental specifications. The Ryzen 5 PRO 8645HS has 6 cores and 12 threads, while the Ryzen 7 8845HS has 8 cores and 16 threads. Base clocks differ: the Ryzen 5 PRO runs at 4.30 GHz, the Ryzen 7 at 3.80 GHz. Boost clocks are closer, with 5.00 GHz for the Ryzen 5 PRO and 5.10 GHz for the Ryzen 7.

The socket differs. The Ryzen 5 PRO uses AMD Socket FP7, while the Ryzen 7 uses AMD Socket FP8. The Ryzen 7 also lists additional part numbers for FP7r2 and FP7 variants, suggesting broader socket compatibility. Both processors have a 45 W TDP, support DDR5 memory in dual-channel configuration, and provide 89.6 GB/s of memory bandwidth. Both use PCIe Gen 4 with 20 CPU lanes.

The Ryzen 5 PRO supports ECC memory; the Ryzen 7 does not. The integrated graphics differ, with the Radeon 760M in the Ryzen 5 PRO and the Radeon 780M in the Ryzen 7. The Ryzen 5 PRO was released on April 15, 2024, while the Ryzen 7 shipped earlier on December 5, 2023.

Architecture Differences

Both processors share the same underlying architecture. They are Zen 4 chips from the Hawk Point codename, built on TSMC's 4 nm process node. Both have 25,000 million transistors on a 178 mm² die. Cache configurations are identical: 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3.

The core counts create the primary architectural difference. The Ryzen 7 8845HS uses two additional Zen 4 cores, which explains its consistent lead in parallel workloads. The Ryzen 5 PRO compensates with higher base clocks (4.30 GHz versus 3.80 GHz), which contributes to its single-thread advantage.

The PRO designation on the Ryzen 5 brings ECC memory support, a feature absent from the Ryzen 7. This suggests the Ryzen 5 PRO targets workstation or professional environments where data integrity matters. The integrated graphics difference, Radeon 760M versus Radeon 780M, indicates the Ryzen 7 offers stronger iGPU performance, though no direct benchmark comparison exists in the database for these graphics units.

Both chips are unlocked? No, neither has an unlocked multiplier, so overclocking is not supported. Both are active production parts in the mobile market segment.

The Verdict

The data supports a clear split. Choose the AMD Ryzen 7 8845HS for parallel compute. It wins 10 of 15 comparisons, with its largest margins in integer math (25.6%), floating point (23.2%), and data compression (22.8%). The 8-core, 16-thread configuration delivers consistent advantages across encryption, extended instructions, physics, multithread, and sorting workloads. The Radeon 780M integrated graphics also outclasses the Radeon 760M on paper.

Choose the AMD Ryzen 5 PRO 8645HS for single-thread responsiveness and professional features. It wins every single-thread test in the head-to-head set, including a 57.5% margin in Cinebench R23 single-core. The higher 4.30 GHz base clock drives this advantage. Its ECC memory support and PRO branding position it for workstation use. The Cinebench R23 multi-core win (21.9% ahead) is notable, though it conflicts with the Ryzen 7's broader multi-thread dominance, suggesting workload-specific behavior.

The database percentiles are close: the Ryzen 5 PRO sits at the 82nd percentile with an average score of 30,879, while the Ryzen 7 sits at the 81st percentile with 29,955. The Ryzen 5 PRO's nearest rival is the AMD Ryzen 7 8700F, which scores 30,746, a 0.4% difference. The Ryzen 7 8845HS ties exactly with the AMD Ryzen 7 7840HS at 29,955, with a 0% delta. These figures indicate the two chips occupy similar overall performance tiers despite their different strengths.

For users prioritizing multi-threaded throughput, the Ryzen 7 8845HS is the clear winner. For users prioritizing single-core speed, ECC memory, and a slightly higher overall average score, the Ryzen 5 PRO 8645HS is the better fit. The choice ultimately comes down to workload type rather than overall capability.