AMD Ryzen 9 PRO 5945 vs AMD Ryzen AI 5 440G Comparison

The AMD Ryzen 9 PRO 5945 and the AMD Ryzen AI 5 440G serve completely different masters. The data is unambiguous: the Ryzen 9 PRO 5945 wins 9 of the 11 head-to-head benchmark comparisons, often by massive margins, while the Ryzen AI 5 440G takes only the single-threaded tests. The Ryzen 9 PRO 5945 is the heavy-lifting workstation part, and the Ryzen AI 5 440G is the modern efficiency-focused contender with a superior single-core peak. The choice is not about which is faster overall, but which workload profile matters more.

Where Each One Wins

The Ryzen 9 PRO 5945 is the clear victor in every multi-threaded and throughput-oriented task. Its 12 cores and 24 threads dominate the 6-core, 12-thread Ryzen AI 5 440G. In the PassMark multithread test, the Ryzen 9 PRO 5945 scores 34549 against 23487, a 47.1% advantage. The gap widens further in integer math, where the Ryzen 9 PRO 5945 posts 129768 versus 71251, an 82.1% lead. Data encryption shows the largest relative difference: 26313 against 13585, a 93.7% margin. The Ryzen 9 PRO 5945 also wins data compression (416599 vs 292735, 42.3% ahead), extended instructions (27031 vs 20648, 30.9% ahead), floating-point math (70291 vs 45711, 53.8% ahead), find prime numbers (228 vs 90, 153.3% ahead), random string sorting (43447 vs 31106, 39.7% ahead), and physics (1772 vs 1329, 33.3% ahead). These are not marginal wins; they are decisive generational and core-count advantages.

The Ryzen AI 5 440G wins exactly one unique category, but it wins it clearly: single-thread performance. It scores 4060 in the PassMark single-thread test, while the Ryzen 9 PRO 5945 scores 3499. That is a 13.8% advantage for the Ryzen AI 5 440G. This indicates the newer architecture delivers a much stronger per-core performance, which matters for lightly threaded applications and responsiveness. The Ryzen AI 5 440G also has an integrated GPU, the Radeon 840M, which the Ryzen 9 PRO 5945 lacks entirely, giving it a functional advantage in systems without a discrete graphics card.

Architecture Differences

The two processors come from different eras and design philosophies. The AMD Ryzen 9 PRO 5945 is based on the Zen 3 architecture, codenamed Vermeer, and belongs to the 5000 series. It is built on a 7 nm process at TSMC, with a die size of 2x 74 mm² and 8,300 million transistors. It uses the AMD Socket AM4 and supports DDR4 memory over a dual-channel bus, delivering 51.2 GB/s of memory bandwidth. Its cache layout includes 64 KB of L1 per core, 512 KB of L2 per core, and a substantial 64 MB of L3 cache.

The AMD Ryzen AI 5 440G is a much newer design, part of the Ryzen AI 400 generation using Zen 5 / Zen 5c cores, with the codename Gorgon Point. It is manufactured on a 4 nm process at TSMC, with a single 195 mm² die. It moves to the AMD Socket AM5 and supports DDR5 memory, also dual-channel, but with a much higher 89.6 GB/s of memory bandwidth. Its cache is smaller in total: 80 KB of L1 per core, 1 MB of L2 per core, and only 8 MB of L3. The Ryzen AI 5 440G also has an unlocked multiplier, while the Ryzen 9 PRO 5945 is locked. Both support ECC memory and PCIe Gen 4, though the Ryzen 9 PRO 5945 offers 20 lanes from the CPU while the Ryzen AI 5 440G offers 12.

The core count difference is stark: 12 cores versus 6, 24 threads versus 12. The Ryzen 9 PRO 5945 compensates for its older architecture with sheer parallelism. The Ryzen AI 5 440G compensates for its lower core count with a newer process node and architecture, which shows in its single-thread victory and higher boost clock of 4.80 GHz versus 4.70 GHz. The base clock tells a similar story: the Ryzen 9 PRO 5945 runs at 3.00 GHz, the Ryzen AI 5 440G at 2.00 GHz, indicating the latter relies on boost behavior rather than sustained base frequency.

FAQ

Q: Which processor is faster in multi-threaded workloads?

A: The AMD Ryzen 9 PRO 5945 is significantly faster. It wins the PassMark multithread test with a score of 34549 compared to 23487 for the Ryzen AI 5 440G, a 47.1% difference. It also leads in integer math by 82.1% and data encryption by 93.7%.

Q: Does the Ryzen AI 5 440G have any performance advantage?

A: Yes, in single-threaded tasks. It scores 4060 in the PassMark single-thread test versus 3499 for the Ryzen 9 PRO 5945, giving it a 13.8% lead. This reflects its newer Zen 5 architecture and higher 4.80 GHz boost clock.

Q: What are the memory support differences?

A: The Ryzen 9 PRO 5945 supports DDR4 memory with 51.2 GB/s bandwidth, while the Ryzen AI 5 440G supports DDR5 memory with 89.6 GB/s bandwidth. Both use dual-channel memory buses and support ECC.

Q: Which processor has integrated graphics?

A: Only the AMD Ryzen AI 5 440G includes integrated graphics, specifically the Radeon 840M. The AMD Ryzen 9 PRO 5945 does not have any integrated GPU, requiring a discrete graphics card.

Q: How do their core counts and sockets compare?

A: The Ryzen 9 PRO 5945 has 12 cores and 24 threads on the AMD Socket AM4. The Ryzen AI 5 440G has 6 cores and 12 threads on the AMD Socket AM5. The Ryzen 9 PRO 5945 is locked, while the Ryzen AI 5 440G has an unlocked multiplier.

Q: Which processor has more L3 cache?

A: The Ryzen 9 PRO 5945 has 64 MB of L3 cache, while the Ryzen AI 5 440G has only 8 MB. The Ryzen AI 5 440G compensates with larger per-core L1 (80 KB vs 64 KB) and L2 (1 MB vs 512 KB) caches.

Specification Differences

The recorded data shows the following differences between the two processors. The Ryzen 9 PRO 5945 has 12 cores and 24 threads, while the Ryzen AI 5 440G has 6 cores and 12 threads. Base clocks are 3.00 GHz for the Ryzen 9 PRO 5945 and 2.00 GHz for the Ryzen AI 5 440G. Boost clocks are 4.70 GHz and 4.80 GHz respectively. Both have a 65 W TDP.

The Ryzen 9 PRO 5945 uses the AMD Socket AM4, the Ryzen AI 5 440G uses the AMD Socket AM5. The architecture is Zen 3 (Vermeer) for the former and Zen 5 / Zen 5c (Gorgon Point) for the latter. Process nodes are 7 nm and 4 nm respectively, both from TSMC. The Ryzen 9 PRO 5945 has a die size of 2x 74 mm² and 8,300 million transistors; the Ryzen AI 5 440G has a single 195 mm² die with no transistor count recorded.

Cache configurations differ: L1 is 64 KB per core versus 80 KB per core, L2 is 512 KB per core versus 1 MB per core, and L3 is 64 MB versus 8 MB. Memory support is DDR4 for the Ryzen 9 PRO 5945 and DDR5 for the Ryzen AI 5 440G. Memory bandwidth is 51.2 GB/s versus 89.6 GB/s. PCIe lanes from the CPU are 20 for the Ryzen 9 PRO 5945 and 12 for the Ryzen AI 5 440G, both Gen 4. Integrated graphics are absent on the Ryzen 9 PRO 5945 and present as Radeon 840M on the Ryzen AI 5 440G. The multiplier is locked on the Ryzen 9 PRO 5945 and unlocked on the Ryzen AI 5 440G.

Head-to-Head Benchmarks

The head-to-head data is decisive in favor of the Ryzen 9 PRO 5945 for almost every workload. The largest win comes in the find prime numbers test, where the Ryzen 9 PRO 5945 scores 228 against 90, a 153.3% advantage. Data encryption is nearly as dominant: 26313 versus 13585, a 93.7% lead. Integer math shows an 82.1% gap, with scores of 129768 and 71251. Floating-point math is 53.8% higher for the Ryzen 9 PRO 5945, at 70291 versus 45711.

Multithread performance, the most representative overall throughput metric, is 47.1% higher for the Ryzen 9 PRO 5945. Data compression also favors it by 42.3%, and random string sorting by 39.7%. Extended instructions are 30.9% higher, and physics is 33.3% higher. These results consistently show the Ryzen 9 PRO 5945 providing roughly a third to double the performance in parallel workloads.

The Ryzen AI 5 440G wins the single-thread and single-thread (duplicate listing) tests with a score of 4060 versus 3499. The delta is 13.8% in its favor. This is its only area of superiority, but it is a meaningful one for applications that rely on a single core. The benchmark results indicate the Ryzen AI 5 440G has a much stronger per-core execution capability, likely due to the newer Zen 5 architecture and higher boost clock. Across the full set of 11 head-to-head comparisons, the Ryzen 9 PRO 5945 wins 9 and the Ryzen AI 5 440G wins 2.

The Verdict

The data leads to a clear conclusion. Choose the AMD Ryzen 9 PRO 5945 for any workload that scales with cores and threads. Its 12-core design delivers a 47.1% advantage in multithread performance, an 82.1% lead in integer math, and a 93.7% lead in data encryption over the Ryzen AI 5 440G. It is the stronger processor for rendering, compilation, scientific computing, and heavy multitasking. Its 64 MB L3 cache and 20 PCIe Gen 4 lanes also position it as a capable desktop workstation part on the mature AM4 platform.

Choose the AMD Ryzen AI 5 440G when single-thread performance is the priority and when integrated graphics are required. Its 13.8% single-thread lead over the Ryzen 9 PRO 5945 makes it the better choice for lightly threaded applications, general desktop responsiveness, and gaming scenarios that favor high boost clocks. The presence of the Radeon 840M integrated GPU means a system can operate without a discrete graphics card, which the Ryzen 9 PRO 5945 cannot do. Its DDR5 support and higher memory bandwidth of 89.6 GB/s also provide a modern platform advantage on AM5.

The average benchmark scores reflect the overall picture: the Ryzen 9 PRO 5945 has an average score of 47527, placing it in the 90th percentile of all CPUs, while the Ryzen AI 5 440G averages 46187, in the 89th percentile. The Ryzen 9 PRO 5945 sits near rivals like the Intel Core i7-13700KF, and the Ryzen AI 5 440G trades blows with the Intel Core i9-13900HX. For pure compute throughput, the Ryzen 9 PRO 5945 is the winner. For modern platform features and single-core speed, the Ryzen AI 5 440G takes the crown. Neither processor is a substitute for the other; they are optimized for different ends of the desktop spectrum.