AMD Ryzen 5 7600X3D vs AMD Ryzen 9 6900HS Comparison

Where Each One Wins

The benchmark data splits these two processors into clearly different roles. The AMD Ryzen 5 7600X3D wins 14 of the 21 head-to-head tests, while the AMD Ryzen 9 6900HS takes 7. The pattern is not about core count, it is about workload type.

The Ryzen 5 7600X3D dominates in single-threaded and lightly threaded scenarios. It wins the 3DMark single-thread test by 3.2%, the 2-thread test by 4.5%, and the 4-thread test by 2.1%. The gap grows dramatically in Cinebench single-core runs, where it leads by 26.1% in R15 and by 97.6% in R23. The desktop part also wins every PassMark single-thread measurement, with an 11.4% advantage in both passmark_single_thread and passmark_singlethread. For workloads that rely on one or two cores, the 7600X3D is the clear choice.

The Ryzen 9 6900HS takes the opposite side in heavily threaded tests. It wins the 3DMark 16-thread test by 15.2%, the 8-thread test by 10.5%, and the max-thread test by 14.4%. In PassMark integer math it leads by 14.6%, in floating-point math by 8.2%, in data encryption by 11.3%, and in data compression by 3.8%. The mobile chip's two extra cores and four extra threads show up exactly where thread counts scale.

The interesting case is Cinebench multi-core. Despite having fewer cores, the 7600X3D wins Cinebench R15 multi-core by 1.5% and Cinebench R23 multi-core by a massive 61.8%. This suggests that the 7600X3D's per-core performance advantage can overcome the core deficit in some multi-threaded workloads, particularly those that are not perfectly scaling. The PassMark multithread test also goes to the 7600X3D by 11.7%, reinforcing this pattern.

Specialized workloads further separate the pair. The 7600X3D wins PassMark physics by 179.2%, find prime numbers by 303.4%, random string sorting by 12.4%, and extended instructions by 5.5%. The physics and prime number results are extreme outliers, indicating that the 7600X3D handles certain computational patterns far better than the 6900HS.

Architecture Differences

The two processors come from different AMD generations built for different markets. The Ryzen 5 7600X3D is a desktop part from the 7000 series, using Zen 4 architecture on the Raphael codename. The Ryzen 9 6900HS is a mobile part from the 6000 series, using Zen 3+ architecture on the Rembrandt codename.

The manufacturing process differs as well. The 7600X3D is built on a 5 nm process at TSMC, while the 6900HS uses a 6 nm process at the same foundry. The desktop chip packs 11,270 million transistors into a 71 mm² die. The mobile chip has no listed transistor count but uses a substantially larger 208 mm² die.

Cache configurations show the biggest architectural split. The 7600X3D has 64 KB of L1 per core and 1 MB of L2 per core, plus a 96 MB shared L3 cache. The 6900HS also has 64 KB of L1 per core but only 512 KB of L2 per core, with a 16 MB shared L3. The 80 MB L3 advantage for the 7600X3D is the defining feature of this comparison, and it explains the extreme wins in physics and prime number tests.

Socket and platform support differ completely. The 7600X3D uses AMD Socket AM5, while the 6900HS uses AMD Socket FP7. The desktop part supports PCIe Gen 5 with 24 lanes on the CPU, and the mobile part supports PCIe Gen 4 with 20 lanes. Memory bandwidth also favors the desktop chip at 83.2 GB/s versus 76.8 GB/s, though both support DDR5 in dual-channel mode. ECC memory is supported on the 7600X3D but not on the 6900HS.

Integrated graphics differ. The 7600X3D includes Radeon Graphics, while the 6900HS includes the Radeon 680M. The 6900HS ships with a TDP of 35 watts against 65 watts for the 7600X3D, reflecting its mobile design. The 7600X3D has a base clock of 4.10 GHz and a boost clock of 4.70 GHz, while the 6900HS has a lower base of 3.30 GHz but a higher boost of 4.90 GHz.

Head-to-Head Benchmarks

The largest single win belongs to the 7600X3D in Cinebench R23 single-core, where it scores 3071 against 1554, a 97.6% advantage. That is nearly double the mobile chip's single-thread score. The same test in R15 shows a 26.1% gap (309 versus 245). These results indicate that the desktop Zen 4 core at 4.70 GHz is far stronger per thread than the Zen 3+ mobile core even at its 4.90 GHz boost.

Cinebench R23 multi-core is the second-largest win. The 7600X3D scores 21758 against 13445, a 61.8% lead despite having 2 fewer cores and 4 fewer threads. The PassMark physics test shows a 179.2% gap (2906 versus 1041), and the find prime numbers test shows a 303.4% gap (234 versus 58). These are the kinds of results that point to the 96 MB L3 cache being decisive for certain computational patterns.

The 6900HS takes its wins in the 3DMark threaded suite and in PassMark math workloads. The largest is the 3DMark 16-thread test, where it scores 6963 against 5906, a 15.2% lead. The max-thread test shows a 14.4% gap (6955 versus 5956), and the 8-thread test shows a 10.5% gap (5830 versus 5215). PassMark integer math goes to the 6900HS by 14.6% (86449 versus 73804), floating-point math by 8.2% (48239 versus 44289), data encryption by 11.3% (18303 versus 16237), and data compression by 3.8% (292842 versus 281665).

The middle ground is narrow. Cinebench R15 multi-core is nearly tied, with the 7600X3D ahead by just 1.5% (2193 versus 2161). The 3DMark 2-thread and 4-thread tests are close as well, with the 7600X3D ahead by 4.5% and 2.1% respectively. The 3DMark single-thread test shows only a 3.2% gap. These close results suggest that in lightly threaded scenarios the two chips are comparable, but the desktop part pulls away as instructions get more complex.

For average benchmark scores across the full database, the 6900HS holds a small edge. Its average benchmark score is 25284 against 24728 for the 7600X3D, a difference of roughly 2.2%. Both sit at the 77th percentile among all CPUs. The nearest rivals confirm the tight grouping: the 7600X3D sits within 0.6% of the AMD Ryzen 7 5700X3D, AMD Ryzen 9 5900HX, Intel Core 5 210H, and Intel Core i5-12450HX. The 6900HS sits within 0.3% of the Intel Core i5-13400F, Intel Core 5 120, AMD Ryzen 5 5600X3D, and AMD Ryzen 7 6800H.

Specification Differences

The two CPUs differ in nearly every core specification. The 7600X3D has 6 cores and 12 threads, while the 6900HS has 8 cores and 16 threads. Base clock is 4.10 GHz for the desktop part and 3.30 GHz for the mobile part. Boost clock is 4.70 GHz versus 4.90 GHz. TDP is 65 watts versus 35 watts.

Cache is the widest gap. The 7600X3D has 1 MB of L2 per core against 512 KB per core for the 6900HS. Shared L3 is 96 MB versus 16 MB. L1 is identical at 64 KB per core.

Platform features diverge as well. The socket is AM5 for the 7600X3D and FP7 for the 6900HS. PCIe support is Gen 5 with 24 lanes versus Gen 4 with 20 lanes. Memory bandwidth is 83.2 GB/s versus 76.8 GB/s. ECC memory is supported on the desktop chip only. The integrated GPU is Radeon Graphics on the 7600X3D and Radeon 680M on the 6900HS.

Process node and die size differ: 5 nm with a 71 mm² die for the 7600X3D, 6 nm with a 208 mm² die for the 6900HS. Transistor count is 11,270 million for the desktop part, with no figure listed for the mobile chip. The release date for the 7600X3D is 2024-08-29, and its launch MSRP is $299. The 6900HS has no listed release date or launch MSRP in the database. Both CPUs have locked multipliers, and both are listed as Active in production status.

FAQ

Q: Which CPU has more cores?

A: The AMD Ryzen 9 6900HS has 8 cores and 16 threads, while the AMD Ryzen 5 7600X3D has 6 cores and 12 threads.

Q: Why does the 7600X3D win Cinebench R23 multi-core despite having fewer cores?

A: The 7600X3D scores 21758 in Cinebench R23 multi-core against 13445 for the 6900HS, a 61.8% advantage. The desktop part's 96 MB shared L3 cache and much higher single-core performance allow it to overcome the core deficit in this workload.

Q: Where does the 6900HS win?

A: The 6900HS wins the 3DMark 16-thread, 8-thread, and max-thread tests, plus PassMark data compression, data encryption, floating-point math, and integer math. Its largest win is 15.2% in the 3DMark 16-thread test.

Q: What is the average benchmark score difference?

A: The 6900HS has an average benchmark score of 25284, and the 7600X3D has 24728. Both CPUs sit at the 77th percentile among all CPUs in the database.

Q: How do the cache sizes compare?

A: The 7600X3D has 64 KB of L1 per core, 1 MB of L2 per core, and 96 MB of shared L3. The 6900HS has 64 KB of L1 per core, 512 KB of L2 per core, and 16 MB of shared L3.

Q: Do both CPUs support DDR5 memory?

A: Yes, both support DDR5 in dual-channel configuration. The 7600X3D has a memory bandwidth of 83.2 GB/s, and the 6900HS has 76.8 GB/s.

The Verdict

The data points to different buyers for each chip. The AMD Ryzen 5 7600X3D is the choice for workloads that depend on single-thread speed and large cache. Its 97.6% lead in Cinebench R23 single-core, 303.4% lead in prime number finding, and 179.2% lead in physics make it the stronger part for lightly threaded applications and cache-sensitive computational tasks. Its Cinebench R23 multi-core win by 61.8% also shows that it can handle some multi-threaded workloads better than the core-heavy mobile chip.

The AMD Ryzen 9 6900HS is the choice for fully threaded workloads that scale with core count. Its wins in 3DMark threaded tests and PassMark integer and floating-point math show a consistent advantage when all 16 threads are active. The higher average benchmark score of 25284 also indicates that across the full database, the mobile chip edges out the desktop part in overall aggregate performance.

The 35 watt TDP of the 6900HS versus 65 watts for the 7600X3D reflects their intended environments. The 6900HS is a mobile part built for laptops, and the 7600X3D is a desktop part built for AM5 platforms. Users on a desktop system with AM5 should look at the 7600X3D for its cache and single-thread strengths. Users on a laptop platform should look at the 6900HS for its thread count and aggregate performance. Each chip wins where its architecture is designed to win.