AMD Ryzen 5 7640U vs AMD Ryzen 7 5700 Comparison

The AMD Ryzen 7 5700 and AMD Ryzen 5 7640U are two very different processors that happen to land at nearly the same average benchmark score. The Ryzen 7 5700, a desktop part built on the Zen 3 architecture, scores an average of 25517, while the mobile-focused Ryzen 5 7640U, based on Zen 4, averages 25485 — a negligible 0.1% difference. The data shows a clear split: the Ryzen 7 5700 dominates multi-threaded and throughput-oriented workloads, winning 14 of the 19 head-to-head benchmark comparisons, while the Ryzen 5 7640U takes the remaining 5, which are all in single-threaded or specific math tasks. The decision between these two is less about raw performance equality and more about platform and workload priorities.

The Verdict

The benchmark results indicate that the AMD Ryzen 7 5700 is the definitive choice for multi-threaded desktop workloads. It wins every Cinebench test across R15, R20, and R23 by a consistent margin of roughly 15.2%, and leads Geekbench multi-core by 15.9%. For users running heavily threaded applications like video encoding, 3D rendering, or data processing, the Ryzen 7 5700's 8 cores and 16 threads provide a substantial advantage over the 7640U's 6 cores and 12 threads. The Ryzen 7 5700 also delivers crushing wins in PassMark's data encryption (34.4% ahead), data compression (31.9% ahead), and integer math (27.8% ahead) tests, making it the superior engine for server-like or content-creation tasks.

Conversely, the AMD Ryzen 5 7640U wins the single-threaded efficiency battle. It leads in Geekbench single-core by 10.3% and in PassMark single-thread by 6.5%, which reflects its higher 4.90 GHz boost clock compared to the 5700's 4.60 GHz. This makes the 7640U the better pick for lightly threaded tasks that depend on raw clock speed, such as legacy single-core applications or responsive everyday computing. However, these wins are fewer and narrower. The 7640U also wins in PassMark physics (15.8% ahead) and prime number finding (21.6% ahead), but these are isolated specialty tests. Given that the Ryzen 7 5700 wins the majority of benchmarks and holds a slight overall average score edge, the data strongly favors it for any user prioritizing multi-core performance, while the 7640U is only preferable for those who value maximum single-thread responsiveness in a mobile platform.

Where Each One Wins

The Ryzen 7 5700's wins are concentrated in throughput-heavy and parallel workloads. Across the entire Cinebench suite — R15, R20, and R23 — it outperforms the 7640U by a nearly uniform 15.2% in both multi-core and single-core variants, except for R15 single-core where it leads by 14.9%. The 5700's advantage expands in PassMark's specialized tests: it is 34.4% faster in data encryption, 31.9% faster in data compression, 28.9% faster in extended instructions, 27.8% faster in integer math, and 25.1% faster in floating-point math. It also wins PassMark multi-thread by 15.1% and random string sorting by 12.8%. These results point to a processor that excels in batch processing, compression algorithms, and scientific computing, where its 8 cores and 16 threads can be fully utilized.

The Ryzen 5 7640U's victories are more limited but strategically important for single-threaded performance. It beats the 5700 in Geekbench single-core by 10.3% (2127 vs 1907) and in PassMark single-thread by 6.5% (3524 vs 3296). The 7640U also wins in PassMark physics by 15.8% (1169 vs 984) and in the find prime numbers test by 21.6% (74 vs 58). These wins suggest the 7640U has a stronger per-core execution engine, likely due to its Zen 4 architecture and higher boost clock, which is advantageous for games that rely on a few fast cores or for workloads that cannot scale across many threads.

Architecture Differences

The two processors represent a generational split in AMD's lineup. The Ryzen 7 5700 is a desktop chip built on the Zen 3 architecture, codenamed Cezanne, and manufactured on TSMC's 7 nm process node. The Ryzen 5 7640U is a mobile chip using the newer Zen 4 architecture, codenamed Phoenix, on a more advanced 4 nm process node. This node difference is significant: the 5700 packs 10,700 million transistors on a 180 mm² die, while the 7640U fits 25,000 million transistors on a slightly smaller 178 mm² die, reflecting the density improvements of the 4 nm process.

Core configuration and cache differ substantially. The Ryzen 7 5700 offers 8 cores and 16 threads with a base clock of 3.70 GHz and a boost clock of 4.60 GHz, while the 7640U offers 6 cores and 12 threads with a lower 3.50 GHz base clock but a higher 4.90 GHz boost clock. The 5700 has 512 KB of L2 cache per core and a 16 MB L3 cache, whereas the 7640U has double the L2 cache at 1 MB per core and a 16 MB shared L3 cache. Both have 64 KB of L1 cache per core. The L2 advantage of the 7640U likely contributes to its single-thread wins.

Platform support is a major differentiator. The Ryzen 7 5700 uses the AMD Socket AM4 and supports DDR4 memory with a dual-channel bus and 51.2 GB/s bandwidth. The Ryzen 5 7640U uses the AMD Socket FP8 and supports DDR5 memory, also dual-channel, but with a much higher 89.6 GB/s bandwidth. The 7640U also features PCIe Gen 4 with 20 lanes, while the 5700 is limited to PCIe Gen 3 with 20 lanes. The 7640U includes integrated Radeon 760M graphics, whereas the 5700 has no integrated graphics. The 5700 has an unlocked multiplier for overclocking, while the 7640U is locked. Both support ECC memory, but the 5700 is a 65 W TDP desktop part, while the 7640U is a 15 W TDP mobile part. The 5700 was released in April 2022 with a launch MSRP of $179, while the 7640U was released in May 2023.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 7 5700 has a marginally higher average benchmark score of 25517, compared to the AMD Ryzen 5 7640U's 25485. The difference is 0.1%, making them statistically equivalent overall.

Q: Why does the Ryzen 5 7640U win in single-threaded benchmarks despite having fewer cores?

A: The 7640U has a higher boost clock of 4.90 GHz versus the 5700's 4.60 GHz, and it uses the newer Zen 4 architecture on a 4 nm node. This allows it to win Geekbench single-core by 10.3% and PassMark single-thread by 6.5%.

Q: Which processor is better for multi-threaded rendering workloads?

A: The Ryzen 7 5700 is clearly better. It wins Cinebench R23 multi-core by 15.2% (20655 vs 17936) and Geekbench multi-core by 15.9% (9959 vs 8595), thanks to its 8 cores and 16 threads compared to the 7640U's 6 cores and 12 threads.

Q: Do these processors support the same type of memory?

A: No. The Ryzen 7 5700 supports DDR4 memory with 51.2 GB/s bandwidth, while the Ryzen 5 7640U supports DDR5 memory with 89.6 GB/s bandwidth. Both use a dual-channel memory bus.

Q: Which processor has integrated graphics?

A: Only the AMD Ryzen 5 7640U includes integrated graphics, specifically the Radeon 760M. The AMD Ryzen 7 5700 has no integrated graphics, requiring a discrete GPU for display output.

Q: How do they compare in terms of power consumption?

A: The Ryzen 7 5700 has a TDP of 65 W, while the Ryzen 5 7640U has a TDP of 15 W. This reflects the desktop vs mobile design focus of the two parts.

Head-to-Head Benchmarks

The most decisive wins for the AMD Ryzen 7 5700 come in PassMark's specialized throughput tests. In data encryption, the 5700 scores 20096 against the 7640U's 14954, a 34.4% advantage. Data compression shows a 31.9% lead (316699 vs 240032), and extended instructions tests show a 28.9% lead (21945 vs 17019). Integer math results are 27.8% higher (90091 vs 70483), and floating-point math is 25.1% higher (51427 vs 41093). These margins are far larger than the overall average score difference, indicating that the 5700's extra cores and threads are particularly effective in compute-heavy, parallelizable tasks.

The Cinebench suite shows a consistent pattern of dominance for the 5700. In Cinebench R23 multi-core, the 5700 scores 20655 versus 17936 for the 7640U, a 15.2% win. The same 15.2% margin appears in R20 multi-core (8675 vs 7533) and R15 multi-core (2082 vs 1807). Single-core Cinebench results are also in the 5700's favor, with R23 single-core at 2916 vs 2532 (15.2% ahead), R20 single-core at 1224 vs 1063 (15.1% ahead), and R15 single-core at 293 vs 255 (14.9% ahead). The Geekbench multi-core test confirms this trend, with the 5700 winning 9959 vs 8595, a 15.9% margin.

The Ryzen 5 7640U's wins are fewer but focused on single-thread speed. Its largest win is in PassMark's find prime numbers test, where it scores 74 against the 5700's 58, a 21.6% advantage. In PassMark physics, the 7640U scores 1169 versus 984, a 15.8% lead. The Geekbench single-core test shows the 7640U winning 2127 vs 1907, a 10.3% margin. The PassMark single-thread test is closer, with the 7640U scoring 3524 vs 3296, a 6.5% advantage. These wins, while significant in their respective categories, do not offset the 5700's broad multi-threaded dominance, as evidenced by the 14-5 win split in favor of the 5700.