AMD Ryzen 9 9950X3D vs AMD Ryzen AI 7 445 Comparison

The Verdict

The benchmark data presents a complete sweep: the AMD Ryzen 9 9950X3D wins all 15 recorded head-to-head comparisons against the AMD Ryzen AI 7 445, with zero wins for the mobile chip. The average benchmark score for the 9950X3D is 75,779, placing it in the 95th percentile of all CPUs, while the AI 7 445 averages 26,936, sitting in the 79th percentile. This is not a close contest by any metric.

The Ryzen 9 9950X3D is a desktop flagship with 16 cores and 32 threads, a 170 W TDP, and a boost clock of 5.70 GHz. The Ryzen AI 7 445 is a mobile processor with 6 cores and 12 threads, a 28 W TDP, and a 4.60 GHz boost. The data shows the desktop part delivers roughly three to four times the multi-threaded performance, and in some specialized workloads, the gap expands to nearly tenfold. The single-core advantage is more modest but still decisive, ranging from 25.1% to 37.8% depending on the test.

The verdict for system builders is straightforward from the recorded measurements. The 9950X3D is the choice for any workload that scales with core count, cache size, or raw throughput, including rendering, scientific computing, encryption, and heavy multitasking. The AI 7 445, despite its lower scores, is the only viable option for ultra-portable or low-power mobile designs where a 28 W TDP and an FP8 socket are required. The data does not suggest any scenario where the mobile chip outperforms the desktop part, but its existence in the database confirms it serves a different thermal and physical envelope.

Architecture Differences

Both processors share the Zen 5 architecture and are fabricated on TSMC's 4 nm process node, but they diverge significantly in implementation. The Ryzen 9 9950X3D uses the Granite Ridge codename and belongs to the Ryzen 9 generation. It features 16 cores and 32 threads, and its die consists of two chiplets, each measuring 70.6 mm², with a combined transistor count of 16,630 million. The Ryzen AI 7 445 uses the Gorgon Point codename and belongs to the Ryzen AI 400 generation, which combines Zen 5 and Zen 5c cores. It has 6 cores and 12 threads, and the database does not list a die size or transistor count for this part.

Cache organization is another major differentiator. The 9950X3D carries 128 MB of L3 cache, while the AI 7 445 has only 4 MB of L3. Both parts use 80 KB of L1 cache per core and 1 MB of L2 per core, but the desktop chip's massive L3 pool is a defining characteristic. The 9950X3D also supports PCIe Gen 5 with 24 lanes (CPU only), whereas the AI 7 445 uses PCIe Gen 4 with 14 lanes. Both support dual-channel memory with 89.6 GB/s bandwidth and ECC memory, but the mobile chip adds LPDDR5X support alongside DDR5, while the desktop part lists only DDR5.

The integrated graphics differ as well. The 9950X3D includes Radeon Graphics, while the AI 7 445 carries the Radeon 840M. The desktop chip has an unlocked multiplier and a launch MSRP of $699, while the mobile chip's multiplier is locked and no launch MSRP is recorded. The sockets are entirely different: AM5 for the desktop part, FP8 for the mobile part. The release dates are close, with the 9950X3D recorded as 2025-01-05 and the AI 7 445 as 2026-01-04, but the market segments are clear: Desktop versus Mobile.

Head-to-Head Benchmarks

The largest percentage gap appears in the PassMark find prime numbers test, where the 9950X3D scores 613 versus 56 for the AI 7 445, a delta of 994.6%. This workload is highly sensitive to core count and cache, and the difference is staggering. The extended instructions test shows a 361.3% delta (73,011 versus 15,826), while data encryption shows 323.4% (44,536 versus 10,519). Integer math follows at 316.9% (243,209 versus 58,332), and data compression comes in at 320.9% (908,421 versus 215,812).

In Cinebench, the multi-core results are particularly lopsided. The R23 multi-core score is 42,018 for the 9950X3D versus 10,590 for the AI 7 445, a 296.8% delta. The R15 multi-core test shows 6,536 versus 1,723, a 279.3% delta. The PassMark multithread score is 70,255 versus 18,115, a 287.8% delta, and the physics test shows 5,670 versus 976, a 480.9% delta. Floating point math is 159,724 versus 39,362, a 305.8% delta, and random string sorting is 95,423 versus 23,488, a 306.3% delta.

Single-threaded results are closer but still favor the desktop chip. The R23 single-core score is 2,259 versus 1,806, a 25.1% delta. The R15 single-core score is 350 versus 254, a 37.8% delta. The PassMark single-thread score is 4,737 versus 3,591, a 31.9% delta, and the same score appears under the passmark_singlethread label, confirming consistency. The 3DMark tests are only recorded for the 9950X3D, so no direct comparison is possible there, but the 16-thread score of 16,374 and max-thread score of 17,184 indicate strong scaling.

Specification Differences

The recorded specifications that differ between the two parts are as follows. The 9950X3D has 16 cores and 32 threads, while the AI 7 445 has 6 cores and 12 threads. The base clock is 4.30 GHz versus 2.00 GHz, and the boost clock is 5.70 GHz versus 4.60 GHz. The TDP is 170 W versus 28 W. The socket is AMD Socket AM5 versus AMD Socket FP8. The codename is Granite Ridge versus Gorgon Point. The generation is Ryzen 9 (Zen 5, Granite Ridge) versus Ryzen AI 400 (Zen 5 / Zen 5c).

The L3 cache is 128 MB versus 4 MB. The memory support is DDR5 versus DDR5 and LPDDR5X. The PCIe version is Gen 5 with 24 lanes versus Gen 4 with 14 lanes. The integrated graphics are Radeon Graphics versus Radeon 840M. The market segment is Desktop versus Mobile. The multiplier is unlocked versus locked. The part numbers are 100-000000719 versus 100-000001935. The die size is listed as 2x 70.6 mm² for the desktop part, while no die size is recorded for the mobile part. The transistor count is 16,630 million for the desktop part, with no value for the mobile part. The launch MSRP is $699 for the desktop part, and none is recorded for the mobile part. The release date is 2025-01-05 versus 2026-01-04.

The specifications that are identical include the architecture (Zen 5), process node (4 nm), foundry (TSMC), L1 cache (80 KB per core), L2 cache (1 MB per core), memory bus (dual-channel), memory bandwidth (89.6 GB/s), ECC memory support (true), and production status (Active).

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 9950X3D has 16 cores and 32 threads, while the AMD Ryzen AI 7 445 has 6 cores and 12 threads. This core difference drives the large multi-threaded performance gap.

Q: What is the difference in L3 cache size?

A: The 9950X3D has 128 MB of L3 cache, while the AI 7 445 has 4 MB. This 32-fold difference in L3 capacity is a major factor in the desktop chip's advantage in cache-sensitive workloads like data compression and prime number finding.

Q: How do the single-threaded scores compare?

A: The 9950X3D leads in every single-threaded test. In Cinebench R23 single-core, it scores 2,259 versus 1,806, a 25.1% delta. In PassMark single-thread, it scores 4,737 versus 3,591, a 31.9% delta. In Cinebench R15 single-core, it scores 350 versus 254, a 37.8% delta.

Q: Which processor supports faster PCIe?

A: The 9950X3D supports PCIe Gen 5 with 24 lanes (CPU only), while the AI 7 445 supports PCIe Gen 4 with 14 lanes. This gives the desktop part more bandwidth and more lanes for expansion.

Q: Do both processors support ECC memory?

A: Yes, both the 9950X3D and the AI 7 445 support ECC memory. Both also use a dual-channel memory bus with 89.6 GB/s bandwidth, though the AI 7 445 adds LPDDR5X support alongside DDR5.

Q: What is the TDP of each processor?

A: The 9950X3D has a TDP of 170 W, while the AI 7 445 has a TDP of 28 W. The mobile chip is designed for low-power systems, while the desktop chip is designed for high-performance desktops with adequate cooling.

Where Each One Wins

The recorded data shows the AMD Ryzen 9 9950X3D wins in every benchmark category, so the use-case split is based on the nature of the workloads and the platform requirements rather than any performance reversal. The 9950X3D is the clear choice for multi-threaded, cache-heavy, and numerically intensive tasks. Its Cinebench R23 multi-core score of 42,018 and PassMark multithread score of 70,255 indicate strong performance in rendering, video encoding, and compilation workloads. The data compression score of 908,421 and encryption score of 44,536 show it excels at data-heavy and security-related operations. The extended instructions score of 73,011 and floating point math score of 159,724 point to scientific computing and simulation workloads. The prime number finding score of 613, a 994.6% delta over the mobile part, suggests exceptional performance in specialized algorithmic tasks.

The Ryzen AI 7 445, despite losing all benchmarks, has its own use case based on its physical and electrical characteristics. Its 28 W TDP and FP8 socket make it suitable for thin-and-light laptops and mini-PCs where power consumption and heat dissipation are primary constraints. Its support for LPDDR5X memory alongside DDR5 gives system designers flexibility in mobile memory configurations. The 79th percentile ranking versus all CPUs means it is still a capable processor for general mobile productivity, even if it cannot match the desktop flagship. Its 6 cores and 12 threads with a 4.60 GHz boost clock provide reasonable performance for everyday applications, and its Radeon 840M integrated graphics offer a baseline for light visual tasks. The data does not show any workload where the AI 7 445 outperforms the 9950X3D, but the mobile chip's value lies in its form factor and power envelope, not in absolute performance.