AMD Ryzen 5 5600X3D vs AMD Ryzen 5 6600H Comparison

The benchmark data presents a clear and consistent picture: the AMD Ryzen 5 5600X3D outperforms the AMD Ryzen 5 6600H in every single head-to-head test recorded, securing 17 wins out of 17 comparisons. The Ryzen 5 6600H, a mobile processor, is not able to match the desktop-oriented Ryzen 5 5600X3D in any measured workload. The deltas range from a marginal 0.3% in single-threaded tests to a dominant 44.5% in multi-threaded Cinebench workloads, indicating that the 5600X3D is not just faster, but often dramatically so.

Head-to-Head Benchmarks

The most significant victories for the AMD Ryzen 5 5600X3D are in multi-threaded and heavily parallel workloads. In Cinebench R23, the 5600X3D scores 18,603 points compared to the 6600H’s 10,322, a lead of 44.5%. This is mirrored in the Cinebench R15 multicore test, where the 5600X3D’s 1,875 score is 10.3% higher than the 6600H’s 1,681.5. The gap narrows slightly in Geekbench multicore, but the 5600X3D still holds a 20.7% advantage, scoring 9,386 versus 7,444. These results indicate that for any rendering, encoding, or compilation task that scales across all cores, the 5600X3D is the substantially stronger processor.

The single-core results tell a similar, though less extreme, story. In Cinebench R23 single-core, the 5600X3D’s score of 2,626 is 44.5% higher than the 6600H’s 1,458, a massive gap that also appears in the older Cinebench R15 single-core test where the 5600X3D leads by 11.4% (264 vs 234). However, the difference in PassMark’s single-thread test is nearly negligible, with the 5600X3D scoring 3,187 against the 6600H’s 3,178, a delta of only 0.3%. This suggests that while the 5600X3D has a decisive edge in some single-threaded scenarios, the raw per-core performance in other benchmarks is much closer.

The most striking anomaly in the dataset is the PassMark find prime numbers test. Here, the 5600X3D scores 181, which is a 71.3% advantage over the 6600H’s score of just 52. This is the largest relative delta of any benchmark, indicating a massive superiority in this specific type of integer workload. Other PassMark integer-based tests show a smaller gap, but the 5600X3D still wins: integer math (65,587 vs 64,927, a 1% lead) and data encryption (15,170 vs 14,277, a 5.9% lead). The 5600X3D also wins in data compression (247,365 vs 229,879, a 7.1% lead) and extended instructions (17,102 vs 15,903, a 7% lead).

In floating-point and memory-related tests, the margin is much tighter. The PassMark floating point math score is nearly identical, with the 5600X3D at 37,464 and the 6600H at 36,796, a lead of just 1.8%. Similarly, random string sorting shows a 2.9% advantage for the 5600X3D (24,597 vs 23,888). The PassMark physics test, however, is a significant outlier in the other direction, with the 5600X3D scoring 2,453 against the 6600H’s 891, a 63.7% difference. The overall PassMark multithread score reflects the pattern, with the 5600X3D at 21,888, which is 14.7% higher than the 6600H’s 18,669.

Where Each One Wins

Based on the data, the AMD Ryzen 5 5600X3D wins in every single category measured. There is no benchmark in the provided set where the AMD Ryzen 5 6600H comes out ahead. This means for all use cases reflected by these tests, the 5600X3D is the faster processor.

• For multi-threaded productivity: The 5600X3D is the clear choice. Its 44.5% lead in Cinebench R23 multicore and 20.7% lead in Geekbench multicore make it vastly superior for video rendering, 3D modeling, and software compilation.
• For gaming and simulation physics: The 5600X3D’s 63.7% advantage in the PassMark physics test is particularly notable. This test is often correlated with gaming physics and simulation performance, where the 5600X3D’s large L3 cache is likely a major factor.
• For single-threaded tasks: While the 5600X3D wins all single-core tests, the margin is inconsistent. The 44.5% lead in Cinebench R23 single-core is significant, but the 0.3% lead in PassMark single-thread suggests that in some applications, the 6600H can be nearly as responsive. However, the 5600X3D is still the performance leader.
• For integer-heavy workloads: The 5600X3D shows a massive 71.3% advantage in the find prime numbers test, making it far better suited for workloads that are heavily dependent on integer calculations.

There is no scenario in this data where the 6600H wins. The only potential advantage for the 6600H outside of pure performance is its market segment, being a mobile processor, but the benchmark results do not give it a win in any test.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 5 6600H has a higher average benchmark score of 25,550, compared to the AMD Ryzen 5 5600X3D’s 25,365. Despite this, the 5600X3D wins all 17 head-to-head tests, indicating the average score is influenced by different test distributions.

Q: Is the AMD Ryzen 5 6600H more power-efficient?

A: Yes, the data shows the 6600H has a TDP of 45, while the 5600X3D has a TDP of 105. This indicates the 6600H is designed for a much lower power envelope, typical of mobile processors.

Q: What is the performance difference in the Cinebench R23 multicore test?

A: The AMD Ryzen 5 5600X3D scores 18,603, which is 44.5% higher than the AMD Ryzen 5 6600H’s score of 10,322.

Q: Which processor has a larger L3 cache?

A: The AMD Ryzen 5 5600X3D has a significantly larger L3 cache of 96 MB shared, compared to the 16 MB shared on the AMD Ryzen 5 6600H.

Q: Does the AMD Ryzen 5 6600H have integrated graphics?

A: Yes, the AMD Ryzen 5 6600H includes Radeon 660M integrated graphics. The AMD Ryzen 5 5600X3D does not have an integrated GPU listed in the data.

Q: What is the largest performance gap between the two processors?

A: The largest gap is in the PassMark find prime numbers test, where the AMD Ryzen 5 5600X3D scores 181, a 71.3% advantage over the AMD Ryzen 5 6600H’s score of 52.

Specification Differences

The two processors differ in several key specifications. The AMD Ryzen 5 6600H is a mobile chip on the AMD Socket FP7, while the AMD Ryzen 5 5600X3D is a desktop chip on the AMD Socket AM4. The 6600H has a boost clock of 4.50 GHz, slightly higher than the 5600X3D’s 4.40 GHz, but both have a base clock of 3.30 GHz. The TDP is a major difference: the 6600H is rated at 45, while the 5600X3D is rated at 105. Memory support differs, with the 6600H using DDR5 and the 5600X3D using DDR4. The 6600H has a memory bandwidth of 76.8 GB/s, while the 5600X3D has 51.2 GB/s. The 5600X3D supports ECC memory, while the 6600H does not. The 6600H has integrated Radeon 660M graphics, while the 5600X3D has none. The 5600X3D has a release date of 2023-07-06, while the 6600H has no listed release date. The 5600X3D has a launch MSRP of $229. The 6600H is listed as Active in production, while the 5600X3D is End-of-life.

Architecture Differences

The architectural differences are substantial. The AMD Ryzen 5 6600H is based on the Zen 3+ architecture with the codename Rembrandt, while the AMD Ryzen 5 5600X3D is based on the Zen 3 architecture with the codename Vermeer. This is reflected in their process nodes: the 6600H is built on a 6 nm process, while the 5600X3D uses a 7 nm process. The die size also differs, with the 6600H at 208 mm² and the 5600X3D at 74 mm². The cache hierarchy is where the most significant performance-relevant difference lies. Both have 64 KB of L1 cache per core and 512 KB of L2 cache per core, but the L3 cache is drastically different. The 6600H has 16 MB of shared L3 cache, while the 5600X3D has 96 MB of shared L3 cache, a 6x increase. This large L3 cache on the 5600X3D is a hallmark of the X3D series and is likely the primary driver of its superior performance in many tests. Both CPUs have 6 cores and 12 threads, but their market segments differ, with the 6600H being a mobile part and the 5600X3D a desktop part.

The Verdict

The benchmark data is unambiguous. The AMD Ryzen 5 5600X3D is the superior processor in every measured workload, with wins in all 17 head-to-head tests. For a user building a desktop system, the 5600X3D is the clear choice for raw performance, especially in multi-threaded applications where it leads by up to 44.5% in Cinebench R23 multicore, and in physics simulations where it shows a 63.7% advantage. Its larger 96 MB L3 cache and higher TDP contribute to these results.

The AMD Ryzen 5 6600H, despite having a slightly higher boost clock and a more advanced 6 nm process node, cannot overcome the performance deficit. Its lower TDP of 45 makes it an option for power-constrained mobile systems, and it includes integrated graphics, which the 5600X3D lacks. The data suggests that for any user who can accommodate a desktop processor, the 5600X3D offers far better performance, even though its production status is listed as end-of-life. The 6600H, with its active production status, is the choice for a laptop, but the benchmark results show it will be significantly slower than the 5600X3D in a desktop environment. The choice is therefore not about performance, but about the platform: if the requirement is a desktop, the 5600X3D wins decisively; if the requirement is a laptop, the 6600H is the only option, but its performance is lower across the board.