AMD Ryzen 5 7500X3D vs AMD Ryzen 7 PRO 8840U Comparison

Head-to-Head Benchmarks

The recorded PassMark data splits the two processors across eleven tests, with the AMD Ryzen 7 PRO 8840U taking seven victories and the AMD Ryzen 5 7500X3D taking four. The most dramatic result in the comparison appears in the prime number test, where the Ryzen 5 7500X3D scores 221 against the Ryzen 7 PRO 8840U's 76, a lead of 190.8%. This is the largest percentage gap in the entire head-to-head set and points to a substantial advantage in integer-heavy, branch-dense workloads that rely on rapid single-core execution.

The physics benchmark produces a similarly lopsided result. The Ryzen 5 7500X3D records 2,779 points, while the Ryzen 7 PRO 8840U manages 1,174 points, giving the desktop part a 136.7% margin. Physics simulations often stress memory latency and cache hierarchy, and the Ryzen 5's larger L3 cache appears to deliver a major benefit here. The extended instructions test also goes to the Ryzen 5 7500X3D with 20,455 points versus 19,132 points, a 6.9% edge, indicating better throughput for AVX-style workloads.

The Ryzen 5 7500X3D also claims the multithreaded PassMark test with 25,047 points against 23,850 points, a 5% advantage. This is notable because the Ryzen 7 PRO 8840U has two additional cores and four additional threads. The desktop chip's 96 MB of shared L3 cache and higher base clock of 4.00 GHz help compensate for its lower core count, at least in this particular aggregate workload.

The Ryzen 7 PRO 8840U counters with strong wins in math-oriented tests. Its floating point score of 50,746 points beats the Ryzen 5 7500X3D's 43,594 points by 14.1%. The integer math result is even more decisive: 88,339 points versus 70,774 points, a 19.9% margin. These two results show that the mobile chip's eight Zen 4 cores scale effectively when the workload can use all of them in parallel.

The remaining wins for the Ryzen 7 PRO 8840U are narrower. Data encryption shows 16,441 points versus 15,797 points, a 3.9% edge. Data compression is nearly identical, with the Ryzen 7 PRO 8840U at 272,664 points and the Ryzen 5 7500X3D at 271,649 points, a difference of only 0.4%. Random string sorting goes to the Ryzen 7 PRO 8840U by 33,109 to 32,999, a 0.3% margin. Single-thread performance favors the Ryzen 7 PRO 8840U as well, with 3,641 points against 3,494 points, a 4% lead. The higher boost clock of 5.10 GHz on the mobile chip plays a role here, as it exceeds the Ryzen 5 7500X3D's 4.50 GHz boost.

Where Each One Wins

The Ryzen 5 7500X3D is clearly optimized for latency-sensitive and branch-heavy workloads. Its 190.8% lead in prime number finding and 136.7% lead in physics simulations indicate that the 96 MB shared L3 cache, a feature unique to this comparison, reduces the penalty of cache misses in workloads that repeatedly access the same data. The extended instructions win of 6.9% reinforces this pattern, as SIMD-heavy code also benefits from larger cache residency. The 5% multithread win, despite having only 6 cores and 12 threads, further confirms that the cache architecture allows the desktop part to outperform a chip with more execution resources in mixed workloads.

The Ryzen 7 PRO 8840U dominates in raw arithmetic throughput. The 19.9% integer math win and 14.1% floating point win show that its 8 cores and 16 threads provide more aggregate compute capacity when the data fits within its smaller 16 MB L3 cache. The 4% single-thread lead, driven by the 5.10 GHz boost clock, makes it the better choice for lightly threaded applications where frequency matters more than cache size. Encryption and compression tasks, which often combine memory access patterns with cryptographic transforms, also favor the Ryzen 7 PRO 8840U by 3.9% and 0.4% respectively.

The overall database averages tell a slightly different story. The Ryzen 5 7500X3D has an average benchmark score of 44,573 and sits at the 89th percentile of all CPUs. The Ryzen 7 PRO 8840U averages 32,233 and ranks at the 83rd percentile. The difference in average score, roughly 12,340 points, reflects the fact that the Ryzen 5 7500X3D's nearest rivals include the Intel Core Ultra X9 388H (44,466, 0.2% behind) and the Intel Core i9-13950HX (44,342, 0.5% behind). The Ryzen 7 PRO 8840U's nearest rivals are much lower-scoring parts, such as the Intel Core i9-11900 (32,226, 0% delta) and the Intel Core i5-14400F (32,279, 0.1% behind). In the database's measured suite, the desktop chip delivers substantially more overall performance per benchmark iteration.

The Verdict

For workloads that favor large cache capacity and latency-sensitive execution, the Ryzen 5 7500X3D is the stronger part. Its wins in prime number finding, physics, extended instructions, and the aggregate multithread test all point to a processor that extracts more performance from each core through superior data locality. The 190.8% and 136.7% margins in two of those tests are not marginal; they represent a class-level difference in how the two chips handle working sets that exceed what the Ryzen 7 PRO 8840U's 16 MB L3 cache can hold.

For arithmetic-heavy parallel workloads, the Ryzen 7 PRO 8840U is the better performer. The 19.9% integer math win and 14.1% floating point win demonstrate that its two extra cores and four extra threads translate directly into higher throughput when the workload is compute-bound and the cache size is sufficient. Its 4% single-thread edge also makes it the better option for applications that rely on a single high-frequency core.

The choice depends on the workload profile. The Ryzen 5 7500X3D is a desktop part with a 65 W TDP, while the Ryzen 7 PRO 8840U is a mobile part with a 28 W TDP. The desktop chip uses AMD Socket AM5, the mobile chip uses AMD Socket FP7. The Ryzen 5 7500X3D has a launch MSRP of $269. The Ryzen 7 PRO 8840U has no launch MSRP recorded in the database. The Ryzen 5 7500X3D's 89th percentile ranking and average score of 44,573 place it well above the Ryzen 7 PRO 8840U's 83rd percentile and 32,233 average, so for general-purpose use where the specific benchmark tests are unknown, the desktop part is the safer pick.

FAQ

Q: Which processor has the higher single-thread score?

A: The AMD Ryzen 7 PRO 8840U scores 3,641 in the PassMark single-thread test, which is 4% higher than the AMD Ryzen 5 7500X3D's 3,494.

Q: How large is the difference in the physics benchmark?

A: The AMD Ryzen 5 7500X3D scores 2,779 in the physics test, while the AMD Ryzen 7 PRO 8840U scores 1,174, giving the desktop chip a 136.7% advantage.

Q: Does the Ryzen 7 PRO 8840U win any test by a large margin?

A: The largest win for the Ryzen 7 PRO 8840U is in integer math, where it scores 88,339 against the Ryzen 5 7500X3D's 70,774, a 19.9% lead. It also wins floating point math by 14.1% with 50,746 points versus 43,594.

Q: What are the core counts and thread counts of these two chips?

A: The AMD Ryzen 5 7500X3D has 6 cores and 12 threads. The AMD Ryzen 7 PRO 8840U has 8 cores and 16 threads.

Q: Which processor has the larger L3 cache?

A: The AMD Ryzen 5 7500X3D has 96 MB of shared L3 cache. The AMD Ryzen 7 PRO 8840U has 16 MB of shared L3 cache.

Q: How do their overall average benchmark scores compare?

A: The AMD Ryzen 5 7500X3D has an average benchmark score of 44,573 and ranks at the 89th percentile. The AMD Ryzen 7 PRO 8840U has an average benchmark score of 32,233 and ranks at the 83rd percentile.

Architecture Differences

The two processors belong to different AMD series and are built on different process nodes. The AMD Ryzen 5 7500X3D is part of the 7000 series with the codename Raphael, and its generation is listed as Ryzen 5 (Zen 4 (Raphael)). It is manufactured on a 5 nm process at TSMC. The AMD Ryzen 7 PRO 8840U belongs to the 8000 series with the codename Hawk Point and the architecture Zen 4, listed as Ryzen 7 (Zen 4 (Hawk Point)). It uses a 4 nm process at TSMC.

The transistor counts differ significantly. The Ryzen 5 7500X3D contains 11,270 million transistors on a die size of 71 mm². The Ryzen 7 PRO 8840U contains 25,000 million transistors on a die size of 178 mm². The mobile chip's larger die and higher transistor count reflect its integrated Radeon 780M graphics, while the desktop chip uses a simpler Radeon Graphics solution.

Cache configurations are the major architectural divider. Both chips have 64 KB of L1 cache per core and 1 MB of L2 cache per core. The L3 cache is where they diverge: the Ryzen 5 7500X3D provides 96 MB of shared L3 cache, while the Ryzen 7 PRO 8840U provides only 16 MB. This 80 MB difference explains the desktop chip's dominance in cache-sensitive tests like physics and prime number finding.

Clock speeds also differ. The Ryzen 5 7500X3D has a base clock of 4.00 GHz and a boost clock of 4.50 GHz. The Ryzen 7 PRO 8840U has a base clock of 3.30 GHz and a boost clock of 5.10 GHz. The mobile chip's higher boost clock gives it the single-thread edge, while the desktop chip's higher base clock contributes to its multithread performance at lower core counts.

Memory and I/O specifications separate the two platforms. Both support DDR5 memory in a dual-channel configuration. The Ryzen 5 7500X3D has a memory bandwidth of 83.2 GB/s, while the Ryzen 7 PRO 8840U reaches 89.6 GB/s. Both support ECC memory. PCIe connectivity differs: the Ryzen 5 7500X3D uses Gen 5 with 24 lanes (CPU only), while the Ryzen 7 PRO 8840U uses Gen 4 with 20 lanes (CPU only).

Power and socket details reflect their intended markets. The Ryzen 5 7500X3D is a desktop processor with a 65 W TDP and uses AMD Socket AM5. The Ryzen 7 PRO 8840U is a mobile processor with a 28 W TDP and uses AMD Socket FP7. The Ryzen 5 7500X3D was released on 2025-11-11, while the Ryzen 7 PRO 8840U was released on 2024-04-15. Both are currently marked as Active in production. Neither processor has an unlocked multiplier.