AMD Ryzen 5 7600 vs AMD Ryzen 5 8640HS Comparison

The AMD Ryzen 5 7600 and AMD Ryzen 5 8640HS represent two distinct interpretations of the same Zen 4 architecture. The 7600 is a desktop part with a 65 W TDP, while the 8640HS is a mobile processor with a 28 W TDP. Benchmark data shows a comprehensive performance gap in favor of the desktop chip, but the mobile part’s integrated graphics and efficiency profile tell a different story for portable systems.

Head-to-Head Benchmarks

The data is unambiguous: the Ryzen 5 7600 wins all 17 head-to-head benchmark comparisons against the Ryzen 5 8640HS. The margin varies significantly by workload, revealing where the desktop chip’s advantages are most pronounced.

The largest single delta appears in PassMark’s find prime numbers test, where the 7600 scores 200 against the 8640HS’s 70, a 185.7% advantage. This extreme result suggests the desktop chip’s higher sustained clocks and larger cache have an outsized effect on integer-heavy, latency-sensitive workloads. Geekbench multicore shows a 79.8% delta (13413 vs 7461), while PassMark physics shows an 83.1% delta (1776 vs 970) — both indicating that multi-threaded throughput scales far better on the desktop part.

More moderate but still decisive gaps appear in Cinebench R23 multicore, where the 7600 scores 12735 versus 11486, a 10.9% lead. The single-core R23 result is closer at 8.2% (1852 vs 1711), suggesting that clock speed differences matter less in lightly threaded tasks. PassMark single-thread shows a 9.1% delta (3910 vs 3584), consistent with the R23 single-core pattern.

Memory-sensitive workloads also favor the desktop chip. PassMark data compression shows a 34.6% delta (304942 vs 226544), and data encryption shows a 30.6% delta (17704 vs 13551). The 7600’s larger L3 cache (32 MB shared versus 16 MB shared) likely contributes to these results, as does its higher memory bandwidth of 83.2 GB/s versus 89.6 GB/s — the mobile part actually has higher bandwidth but still loses, pointing to cache and clock dominance.

The floating-point and integer math tests show 21.1% and 18.2% deltas respectively (48107 vs 39725 and 80581 vs 68173). Extended instructions show a 45.5% delta (23071 vs 15855), which may reflect the desktop chip’s ability to sustain higher boost clocks during AVX-style workloads. Random string sorting shows a 31.4% delta (35904 vs 27316).

The overall average benchmark scores are close: the 7600 sits at 26324 and the 8640HS at 26106. Both CPUs occupy the 78th percentile among all processors. The nearest rivals for the 7600 include the AMD Ryzen 9 6900HX (0.2% ahead), the AMD Ryzen 7 7435HS (0.3% behind), and the Intel Core i9-11900KF (0.4% ahead). For the 8640HS, the closest competitors are the AMD Ryzen 5 8540U (0.3% behind), the Intel Core i7-14701TE (0.4% ahead), and the AMD Ryzen AI 5 340 (0.5% ahead). The similar averages mask the fact that the 7600 achieves its score with consistently higher per-test peaks, while the 8640HS’s averages are pulled up by its strong integrated graphics results — though those are not part of the standard CPU benchmark suite.

Architecture Differences

Both processors use the Zen 4 architecture, but they differ in node, die size, and transistor count. The 7600 is built on a 5 nm process at TSMC with a die size of 71 mm² and 6,570 million transistors. The 8640HS uses a 4 nm process, also from TSMC, with a much larger die of 178 mm² and 25,000 million transistors. The mobile chip’s larger die accommodates a more powerful integrated GPU and additional on-die components.

The codenames reflect the different designs: Raphael for the desktop 7600, Hawk Point for the mobile 8640HS. Both have 6 cores and 12 threads, but the 7600 runs at a base clock of 3.80 GHz with a boost of 5.10 GHz, while the 8640HS starts at 3.50 GHz and boosts to 4.90 GHz. The desktop chip’s 65 W TDP versus the mobile chip’s 28 W TDP explains the clock gap — higher power envelope allows higher sustained frequencies.

Cache configurations differ substantially. Both have 64 KB L1 per core and 1 MB L2 per core, but the L3 cache is 32 MB shared on the 7600 versus 16 MB shared on the 8640HS. This doubling of L3 is a critical advantage for the desktop chip in data-heavy workloads.

The 7600 supports PCIe Gen 5 with 24 lanes (CPU only), while the 8640HS uses PCIe Gen 4 with 20 lanes. Both support DDR5 memory in dual-channel mode, but the 8640HS has a higher memory bandwidth rating of 89.6 GB/s versus 83.2 GB/s for the 7600. The desktop chip supports ECC memory; the mobile chip does not.

Integrated graphics differ: the 7600 has Radeon Graphics, while the 8640HS has the Radeon 760M. The mobile part’s integrated GPU is expected to be more capable given the larger die and the target market, though the benchmark data does not include GPU-specific scores. The 7600 has an unlocked multiplier, while the 8640HS is locked. The 7600 uses AMD Socket AM5, while the 8640HS uses AMD Socket FP8.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 5 7600 has a boost clock of 5.10 GHz, compared to 4.90 GHz for the AMD Ryzen 5 8640HS.

Q: How much larger is the L3 cache on the desktop part?

A: The Ryzen 5 7600 has 32 MB shared L3 cache, exactly double the 16 MB shared L3 cache found on the Ryzen 5 8640HS.

Q: Do both processors have the same number of cores and threads?

A: Yes, both have 6 cores and 12 threads.

Q: What is the manufacturing process difference?

A: The Ryzen 5 7600 uses a 5 nm process, while the Ryzen 5 8640HS uses a 4 nm process, both from TSMC.

Q: Which chip supports ECC memory?

A: Only the AMD Ryzen 5 7600 supports ECC memory; the Ryzen 5 8640HS does not.

Q: What are the socket types for each processor?

A: The Ryzen 5 7600 uses AMD Socket AM5, while the Ryzen 5 8640HS uses AMD Socket FP8.

Specification Differences

The two processors differ in several key specification fields. The base clock is 3.80 GHz on the 7600 versus 3.50 GHz on the 8640HS. Boost clock is 5.10 GHz versus 4.90 GHz. TDP is 65 W versus 28 W. The socket differs: AM5 versus FP8. The codename differs: Raphael versus Hawk Point. The process node differs: 5 nm versus 4 nm. Transistor count differs: 6,570 million versus 25,000 million. Die size differs: 71 mm² versus 178 mm². L3 cache differs: 32 MB versus 16 MB. PCIe support differs: Gen 5 with 24 lanes versus Gen 4 with 20 lanes. ECC memory support is present on the 7600 but absent on the 8640HS. Integrated graphics differ: Radeon Graphics versus Radeon 760M. The multiplier is unlocked on the 7600 but locked on the 8640HS. Memory bandwidth differs: 83.2 GB/s versus 89.6 GB/s. The market segment differs: Desktop versus Mobile. The 7600 has a launch MSRP of $229; the 8640HS has no launch MSRP listed. Release dates differ: 2023-01-13 for the 7600 versus 2023-12-05 for the 8640HS. Part numbers also differ.

Where Each One Wins

The Ryzen 5 7600 wins every single benchmark comparison in the head-to-head data. Its largest advantages are in integer math (185.7% delta in find prime numbers), physics simulation (83.1% delta), and Geekbench multicore (79.8% delta). These results indicate dominance in multi-threaded productivity, scientific computing, and simulation workloads. The desktop chip also leads in data compression by 34.6% and extended instructions by 45.5%, making it the stronger choice for content creation and encryption tasks.

The Ryzen 5 8640HS has no benchmark wins in the provided data, but its specification profile suggests advantages in specific contexts. Its higher memory bandwidth (89.6 GB/s) and smaller process node (4 nm) allow it to achieve competitive average scores (26106 versus 26324) despite a much lower TDP of 28 W. The integrated Radeon 760M graphics, combined with the larger die and transistor count, indicates superior iGPU performance for daily mobile use. Its socket (FP8) and mobile market segment mean it is designed for laptops where the 7600 cannot be installed.

The Verdict

The data clearly favors the AMD Ryzen 5 7600 for raw CPU performance. It wins all 17 head-to-head tests, with deltas ranging from 8.2% in Cinebench R23 single-core to 185.7% in PassMark find prime numbers. The desktop chip’s higher clock speeds, larger L3 cache, and unlocked multiplier make it the superior choice for desktop builds where performance is the priority. Its 65 W TDP is modest for a desktop part, and its 5 nm process keeps power draw reasonable.

The AMD Ryzen 5 8640HS is the appropriate choice for mobile systems. Its 28 W TDP is designed for battery-powered laptops, and its 4 nm process with 25,000 million transistors on a 178 mm² die provides a more integrated solution. The Radeon 760M graphics offer a more capable iGPU for light gaming or media tasks without a discrete GPU. Its 89.6 GB/s memory bandwidth is actually higher than the desktop part, which helps mitigate the clock disadvantage in some workloads.

Users building a desktop system with a dedicated GPU should select the Ryzen 5 7600 without hesitation. Those needing a laptop processor with competitive multi-threaded performance for its power class should consider the Ryzen 5 8640HS, knowing it will trail the desktop chip by margins that grow with thread count and cache sensitivity. The 78th percentile ranking for both chips in the overall CPU database confirms that both are competent mid-range parts, but the 7600 delivers more per core and per watt of performance in every measured category.