AMD Ryzen 5 5500X3D vs AMD Ryzen AI 7 445 Comparison

Where Each One Wins

The benchmark data splits these two processors along clear lines. The AMD Ryzen 5 5500X3D, a 5000 series desktop part, secures 8 of the 11 head-to-head benchmark wins. The AMD Ryzen AI 7 445, a mobile processor from the Ryzen AI 400 series, takes the remaining 3. The distribution of wins is not random; it maps directly to the workloads each chip was designed to accelerate.

The Ryzen 5 5500X3D dominates in compute-heavy, multi-threaded, and cache-sensitive tasks. Its most decisive victory comes in the PassMark find prime numbers test, where it scores 170 against the Ryzen AI 7 445's 56, a delta of 203.6%. This is an enormous gap and indicates that the desktop chip's architecture handles iterative integer loops with far greater efficiency. The Physics test tells a similar story: the 5500X3D posts 2282, while the mobile part manages only 976, a 133.8% advantage. These two results alone suggest that the 5500X3D is the superior choice for simulation, scientific computing, and any workload that relies on rapid prime number generation or physics calculations.

The Ryzen 5 5500X3D also wins the multithreaded PassMark test with a score of 20363 versus 18115, a 12.4% lead. In data encryption, the desktop chip is far ahead, scoring 13967 against 10519, a 32.8% margin. This points to the 5500X3D's advantage in cryptographic workloads and secure data handling. The data compression test also favors the desktop chip, with a score of 230392 versus 215812, a 6.8% lead. The remaining wins for the 5500X3D are narrower: integer math (60033 vs 58332, a 2.9% lead), extended instructions (15925 vs 15826, a 0.6% lead), and random string sorting (23675 vs 23488, a 0.8% lead). These are close calls, but they consistently favor the 5500X3D.

The AMD Ryzen AI 7 445 wins where the workload favors its newer architecture and higher boost clock. In the single-thread test, the mobile chip scores 3591 against the 5500X3D's 2941, an 18.1% advantage. This is a substantial lead and shows that for lightly threaded applications, the Ryzen AI 7 445 is noticeably faster. The floating point math test also goes to the mobile part, with a score of 39362 versus 34511, a 12.3% advantage. This indicates that the Zen 5 architecture in the Ryzen AI 7 445 handles floating-point operations more efficiently than the Zen 3 cores in the 5500X3D.

In terms of overall benchmark positioning, the data shows that the 5500X3D sits in the 85th percentile of all CPUs, while the Ryzen AI 7 445 sits in the 79th. The average benchmark score for the 5500X3D is 37018, and for the Ryzen AI 7 445 it is 26936. The nearest rival data reinforces this positioning: the 5500X3D is within 0.2% of the AMD Ryzen 5 5600F and 0.2% of the Intel Core Ultra 5 225, while being 0.2% behind the AMD Ryzen AI 7 PRO 450 and 0.3% behind the Intel Core i9-12900T. The Ryzen AI 7 445, by contrast, is within 0.1% of the Intel Core i7-1370P and 0.3% of the AMD Ryzen 5 7545U, while being 0.4% behind the AMD Ryzen 7 5700G and 0.6% behind the Intel Core i9-9900K. This places the two chips in different performance tiers.

Architecture Differences

The architectural gap between these two processors is significant. The Ryzen 5 5500X3D uses the Zen 3 architecture, codenamed Vermeer, built on a 7 nm process at TSMC. The Ryzen AI 7 445 uses the Zen 5 architecture, codenamed Gorgon Point, built on a 4 nm process at the same foundry. The difference in process node is a major factor; the smaller 4 nm node allows for higher transistor density and improved power efficiency.

The cache configurations are strikingly different. The 5500X3D has 64 KB of L1 cache per core, 512 KB of L2 cache per core, and a massive 96 MB of shared L3 cache. The Ryzen AI 7 445 has 80 KB of L1 cache per core, 1 MB of L2 cache per core, but only 4 MB of L3 cache. The 5500X3D's 96 MB of shared L3 cache is its defining feature, likely a 3D V-Cache variant given the "X3D" designation, and it provides a massive pool of high-speed memory for frequently accessed data. The Ryzen AI 7 445's much smaller 4 MB of L3 cache is a structural limitation that shows up in the cache-heavy benchmarks.

Memory support also differs. The 5500X3D supports DDR4 memory on a dual-channel bus with a bandwidth of 51.2 GB/s. The Ryzen AI 7 445 supports DDR5 and LPDDR5X memory on a dual-channel bus with a bandwidth of 89.6 GB/s. The mobile chip's memory bandwidth is nearly double that of the desktop chip, which helps it in the floating point math test. Both support ECC memory.

The platform details diverge as well. The 5500X3D uses the AMD Socket AM4, has 20 PCIe Gen 4 lanes (CPU only), and has no integrated graphics. The Ryzen AI 7 445 uses the AMD Socket FP8, has 14 PCIe Gen 4 lanes (CPU only), and includes a Radeon 840M integrated GPU. The 5500X3D has a TDP of 105 watts, while the Ryzen AI 7 445 has a TDP of 28 watts. This is a massive difference in power envelope; the desktop chip consumes significantly more power to deliver its performance, while the mobile chip is designed for efficiency. The base clock of the 5500X3D is 3.00 GHz, and its boost clock is 4.00 GHz. The Ryzen AI 7 445 has a base clock of 2.00 GHz and a boost clock of 4.60 GHz. The mobile chip boosts higher, which explains its single-thread advantage.

FAQ

Q: Which processor has the higher boost clock?

A: The AMD Ryzen AI 7 445 has a boost clock of 4.60 GHz, while the AMD Ryzen 5 5500X3D has a boost clock of 4.00 GHz. The mobile part boosts 0.60 GHz higher, which contributes to its single-thread performance lead.

Q: What is the L3 cache difference between the two?

A: The AMD Ryzen 5 5500X3D has 96 MB of shared L3 cache, while the AMD Ryzen AI 7 445 has only 4 MB of L3 cache. The 5500X3D's L3 cache is 24 times larger, which gives it a major advantage in cache-sensitive workloads like data compression and prime number finding.

Q: Which chip has integrated graphics?

A: The AMD Ryzen AI 7 445 includes a Radeon 840M integrated GPU. The AMD Ryzen 5 5500X3D has no integrated graphics, so a discrete graphics card is required for display output.

Q: How do their average benchmark scores compare?

A: The AMD Ryzen 5 5500X3D has an average benchmark score of 37018, while the AMD Ryzen AI 7 445 has an average score of 26936. The 5500X3D's average score is about 27% higher than the mobile chip's average score.

Q: Which processor has the higher TDP?

A: The AMD Ryzen 5 5500X3D has a TDP of 105 watts, while the AMD Ryzen AI 7 445 has a TDP of 28 watts. The desktop chip uses 77 more watts of power, which is a direct result of its larger cache and higher sustained performance envelope.

Q: What is the difference in memory bandwidth?

A: The AMD Ryzen 5 5500X3D has a memory bandwidth of 51.2 GB/s, while the AMD Ryzen AI 7 445 has a memory bandwidth of 89.6 GB/s. The mobile chip's bandwidth is 38.4 GB/s higher, which supports its floating-point performance.

Specification Differences

The two processors differ in several key specifications. The most obvious is the process node: the Ryzen 5 5500X3D is built on a 7 nm process, while the Ryzen AI 7 445 is built on a 4 nm process. The architecture also differs, with the 5500X3D using Zen 3 and the Ryzen AI 7 445 using Zen 5. The codenames are Vermeer for the desktop part and Gorgon Point for the mobile part.

The die size is listed only for the 5500X3D, at 74 mm². The Ryzen AI 7 445 has no recorded die size in the database. The L1 cache is 64 KB per core on the 5500X3D versus 80 KB per core on the Ryzen AI 7 445. The L2 cache is 512 KB per core on the 5500X3D versus 1 MB per core on the Ryzen AI 7 445. The L3 cache is 96 MB shared on the 5500X3D versus 4 MB on the Ryzen AI 7 445.

Socket compatibility is different: the 5500X3D uses AMD Socket AM4, while the Ryzen AI 7 445 uses AMD Socket FP8. Memory support differs as well: the 5500X3D uses DDR4, while the Ryzen AI 7 445 uses DDR5 and LPDDR5X. The memory bandwidth is 51.2 GB/s for the desktop chip and 89.6 GB/s for the mobile chip. PCIe lane counts also differ, with the 5500X3D having 20 Gen 4 lanes and the Ryzen AI 7 445 having 14 Gen 4 lanes.

The TDP is 105 watts for the 5500X3D and 28 watts for the Ryzen AI 7 445. The base clock is 3.00 GHz for the desktop chip and 2.00 GHz for the mobile chip. The boost clock is 4.00 GHz for the desktop chip and 4.60 GHz for the mobile chip. The integrated graphics are N/A for the 5500X3D and Radeon 840M for the Ryzen AI 7 445. The market segments are Desktop for the 5500X3D and Mobile for the Ryzen AI 7 445. The release dates are June 2025 for the 5500X3D and January 2026 for the Ryzen AI 7 445. Both have locked multipliers.

Head-to-Head Benchmarks

The head-to-head benchmark data reveals the full scope of the performance difference. The largest win for the Ryzen 5 5500X3D is in the find prime numbers test. The desktop chip scores 170, while the Ryzen AI 7 445 scores 56. This is a 203.6% delta, meaning the 5500X3D is more than three times faster in this test. This is the single most lopsided result in the comparison.

The Physics test is the second-largest win for the 5500X3D. It scores 2282 against the Ryzen AI 7 445's 976, a 133.8% advantage. This result is consistent with the prime number finding, as both tests stress the integer execution pipeline. The data encryption test shows a 32.8% lead for the 5500X3D, with scores of 13967 and 10519. This is a substantial margin and suggests the desktop chip's larger cache helps with cryptographic workloads.

The multithread test gives the 5500X3D a 12.4% lead, with scores of 20363 and 18115. This is a solid win for the desktop part. The data compression test shows a 6.8% lead, with scores of 230392 and 215812. The integer math test is closer, with the 5500X3D scoring 60033 and the Ryzen AI 7 445 scoring 58332, a 2.9% delta. The extended instructions test and random string sorting test are near ties, with the 5500X3D leading by 0.6% and 0.8%, respectively.

The Ryzen AI 7 445 wins the single-thread test by a wide margin. It scores 3591 against the 5500X3D's 2941, an 18.1% advantage. This is the mobile chip's most significant win and shows that its higher boost clock of 4.60 GHz and newer Zen 5 architecture provide a real single-core speed advantage. The floating point math test also goes to the Ryzen AI 7 445, with a score of 39362 versus 34511, a 12.3% lead. This suggests the Zen 5 cores have a more efficient floating-point unit.

The overall win count is 8 for the 5500X3D and 3 for the Ryzen AI 7 445. The 5500X3D's wins are concentrated in multi-threaded, cache-heavy, and integer-intensive workloads. The Ryzen AI 7 445's wins are in single-thread and floating-point workloads. The data indicates that the desktop chip is the stronger all-around performer, while the mobile chip holds a specific advantage in lightly threaded tasks and floating-point math.