AMD Ryzen AI 7 450 vs AMD Ryzen Embedded 8645HS Comparison

The AMD Ryzen AI 7 450 and the AMD Ryzen Embedded 8645HS are both 4 nm TSMC parts on the AMD Socket FP8 platform, but they are built for different roles. The Ryzen AI 7 450 is a mobile processor from the Ryzen AI 400 generation, using the Gorgon Point codename with a mix of Zen 5 and Zen 5c cores. The Ryzen Embedded 8645HS belongs to the 8000 series, carries the Hawk Point codename, and uses Zen 4 architecture. The database shows the Ryzen AI 7 450 with a percentile rank of 87 against all CPUs, while the Embedded 8645HS sits at the 50th percentile. That gap alone signals a wide performance chasm, but the benchmark data for the embedded chip is not recorded in the database, leaving the comparison reliant on architectural and specification differences.

Where Each One Wins

The Ryzen AI 7 450 is designed for high-output mobile computing. It has 8 cores and 16 threads, which is two cores and four threads more than the Embedded 8645HS. Its boost clock reaches 5.10 GHz, slightly higher than the embedded part’s 5.00 GHz. The database records a Cinebench R23 multicore score of 18316 for the Ryzen AI 7 450, and a single-core score of 2038. It also posts a Cinebench R15 multicore score of 2713 and a single-core score of 215. In PassMark tests, the Ryzen AI 7 450 scores 26350 in multithread, 3901 in single-thread, 88531 in integer math, 54447 in floating-point math, 315906 in data compression, 16247 in data encryption, 22400 in extended instructions, 35648 in random string sorting, 1578 in physics, and 89 in find prime numbers. These numbers place it well above the 50th percentile, and its nearest rivals in the database include the AMD Ryzen 7 PRO 8840HS, the AMD Ryzen 7 PRO 8845HS, the AMD EPYC 4245P, and the AMD Ryzen 7 9800X3D. The Ryzen AI 7 450 trails the Ryzen 7 PRO 8840HS by 0.3 percent in average benchmark score, leads the Ryzen 7 PRO 8845HS by 0.4 percent, leads the EPYC 4245P by 0.7 percent, and trails the Ryzen 7 9800X3D by 0.7 percent. That places it in a tight performance cluster with those four chips, all within roughly one percent of each other.

The Ryzen Embedded 8645HS is built for embedded systems, not for peak mobile performance. It has 6 cores and 12 threads, a base clock of 4.30 GHz, and a boost clock of 5.00 GHz. Its TDP is 45 watts, which is higher than the Ryzen AI 7 450’s 28 watts. The embedded part uses Zen 4 architecture with a 16 MB shared L3 cache, double the 8 MB L3 cache of the Ryzen AI 7 450. It also has 25,000 million transistors on a 178 mm² die, while the Ryzen AI 7 450 has a 195 mm² die with no transistor count listed. The Embedded 8645HS supports DDR5 memory only, while the Ryzen AI 7 450 supports both DDR5 and LPDDR5X. The embedded part has 20 PCIe Gen 4 lanes from the CPU, compared to 16 lanes on the Ryzen AI 7 450. Its integrated graphics are the Radeon 760M, whereas the Ryzen AI 7 450 uses the Radeon 860M. No benchmark scores are recorded for the Embedded 8645HS in the database, so its wins are defined by its specifications: higher base clock, larger L3 cache, more PCIe lanes, and a higher TDP envelope. Those traits suit always-on, thermally constrained embedded workloads that prioritize consistent throughput over burst performance.

Architecture Differences

The architectural split is clear. The Ryzen AI 7 450 uses Zen 5 and Zen 5c cores in the Gorgon Point design, which is part of the Ryzen AI 400 generation. The Embedded 8645HS uses Zen 4 cores in the Hawk Point design, which belongs to the Ryzen Embedded generation. Both are fabricated on a 4 nm process at TSMC, so the node is identical. The die size differs: the Ryzen AI 7 450 measures 195 mm², while the Embedded 8645HS measures 178 mm². The transistor count for the embedded part is listed at 25,000 million; the Ryzen AI 7 450 has no transistor count recorded.

Cache layouts diverge significantly. The Ryzen AI 7 450 has 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 8 MB of L3 cache. The Embedded 8645HS has 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. That means the embedded part offers double the L3 capacity, which benefits workloads with large working sets that fit within the shared cache. The Zen 5 architecture in the Ryzen AI 7 450 is newer, and the mixed Zen 5 / Zen 5c core arrangement indicates a hybrid design where some cores may favor performance and others efficiency, though the database does not specify the core split.

Memory support differs as well. The Ryzen AI 7 450 supports DDR5 and LPDDR5X, giving it flexibility for thin-and-light mobile designs that use soldered low-power memory. The Embedded 8645HS supports DDR5 only. Both use dual-channel memory buses with 89.6 GB/s bandwidth, and both support ECC memory. PCIe connectivity favors the embedded part: 20 Gen 4 lanes from the CPU versus 16 Gen 4 lanes from the CPU on the Ryzen AI 7 450. That extra lane count is important for embedded applications that need to attach multiple controllers, storage devices, or network interfaces directly to the processor.

The integrated graphics also differ. The Ryzen AI 7 450 carries the Radeon 860M, while the Embedded 8645HS carries the Radeon 760M. The database does not provide benchmark scores for either GPU, so no performance comparison can be made from measured data. The production status for both is Active, and neither has a launch MSRP recorded.

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is empty, and the Embedded 8645HS has no recorded benchmark scores. That means every numeric comparison must come from the Ryzen AI 7 450’s own results and its nearest-rival deltas. The Ryzen AI 7 450’s Cinebench R23 multicore score of 18316 and single-core score of 2038 indicate strong throughput for a 28-watt mobile chip. Its PassMark multithread score of 26350 and single-thread score of 3901 confirm balanced performance across both parallel and single-threaded tasks. The integer math score of 88531 and floating-point math score of 54447 show solid compute capability, while the data compression score of 315906 and random string sorting score of 35648 point to strong memory and cache efficiency.

Without any benchmark results for the Embedded 8645HS, the only measurable wins come from specifications. The Embedded 8645HS has a higher base clock of 4.30 GHz versus 2.00 GHz on the Ryzen AI 7 450. That base clock advantage means the embedded part starts at a much higher operating frequency and does not need to rely on boost states for baseline workloads. The boost clocks are close: 5.00 GHz on the embedded part versus 5.10 GHz on the Ryzen AI 7 450. The L3 cache is 16 MB shared on the embedded part versus 8 MB on the Ryzen AI 7 450, which is a 100 percent increase in capacity. The PCIe lane count is 20 versus 16, a 25 percent increase. The TDP is 45 watts versus 28 watts, which allows the embedded part to sustain higher clocks under continuous load, assuming adequate cooling.

The Ryzen AI 7 450 wins on core count, thread count, boost clock, newer architecture, memory type flexibility, and the more advanced integrated graphics tier. It has 8 cores and 16 threads versus 6 cores and 12 threads, a 33 percent core advantage and a 33 percent thread advantage. Its boost clock is 0.10 GHz higher. It uses Zen 5 and Zen 5c cores versus Zen 4, and supports LPDDR5X in addition to DDR5. The Radeon 860M is a newer graphics unit than the Radeon 760M.

The nearest-rival comparison for the Ryzen AI 7 450 shows it sits within a narrow band of high-end chips. It trails the AMD Ryzen 7 PRO 8840HS by 0.3 percent in average benchmark score, leads the AMD Ryzen 7 PRO 8845HS by 0.4 percent, leads the AMD EPYC 4245P by 0.7 percent, and trails the AMD Ryzen 7 9800X3D by 0.7 percent. All four rivals have average scores around 39,200 to 39,800, while the Ryzen AI 7 450 has an average benchmark score of 39485. That places it essentially at parity with those parts, all of which are presumably higher-power or desktop-class processors. The Ryzen AI 7 450 achieves that level of performance within a 28-watt TDP, which is notable, but the database does not include TDP figures for those rivals, so no direct efficiency comparison is possible.

The Embedded 8645HS has no rivals listed and no average benchmark score, so its performance class cannot be inferred from measured data. Its 50th percentile rank against all CPUs suggests it lands in the middle of the database, but with no recorded scores, that rank stands alone.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen AI 7 450 has 8 cores and 16 threads. The AMD Ryzen Embedded 8645HS has 6 cores and 12 threads.

Q: What are the boost clock speeds of both processors?

A: The Ryzen AI 7 450 boosts to 5.10 GHz. The Embedded 8645HS boosts to 5.00 GHz.

Q: How does the L3 cache compare between the two?

A: The Ryzen AI 7 450 has 8 MB of L3 cache. The Embedded 8645HS has 16 MB of shared L3 cache.

Q: Which processor supports LPDDR5X memory?

A: The Ryzen AI 7 450 supports both DDR5 and LPDDR5X. The Embedded 8645HS supports DDR5 only.

Q: What is the TDP difference?

A: The Ryzen AI 7 450 has a 28-watt TDP. The Embedded 8645HS has a 45-watt TDP.

Q: Which processor has more PCIe lanes from the CPU?

A: The Embedded 8645HS has 20 Gen 4 lanes from the CPU. The Ryzen AI 7 450 has 16 Gen 4 lanes from the CPU.

Specification Differences

The two processors differ in architecture, core configuration, clock speeds, cache, memory support, PCIe lanes, integrated graphics, die size, and generation.

The Ryzen AI 7 450 uses Zen 5 and Zen 5c architecture with the Gorgon Point codename, while the Embedded 8645HS uses Zen 4 with the Hawk Point codename. The Ryzen AI 7 450 has 8 cores and 16 threads; the Embedded 8645HS has 6 cores and 12 threads. Base clocks are 2.00 GHz on the Ryzen AI 7 450 and 4.30 GHz on the Embedded 8645HS. Boost clocks are 5.10 GHz and 5.00 GHz, respectively. TDP is 28 watts for the Ryzen AI 7 450 and 45 watts for the Embedded 8645HS.

Cache configurations differ: the Ryzen AI 7 450 has 80 KB of L1 per core, 1 MB of L2 per core, and 8 MB of L3. The Embedded 8645HS has 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. Memory support is DDR5 and LPDDR5X on the Ryzen AI 7 450 versus DDR5 only on the Embedded 8645HS. Both use dual-channel memory with 89.6 GB/s bandwidth and support ECC. PCIe is Gen 4 with 16 lanes on the Ryzen AI 7 450 and Gen 4 with 20 lanes on the Embedded 8645HS.

The integrated graphics are Radeon 860M on the Ryzen AI 7 450 and Radeon 760M on the Embedded 8645HS. Die size is 195 mm² for the Ryzen AI 7 450 and 178 mm² for the Embedded 8645HS. The Embedded 8645HS has a recorded transistor count of 25,000 million; the Ryzen AI 7 450 does not list one. The Ryzen AI 7 450 belongs to the Ryzen AI 400 generation, while the Embedded 8645HS belongs to the Ryzen Embedded generation. Both use the AMD Socket FP8, are manufactured on a 4 nm process at TSMC, have locked multipliers, and are listed as Active in production. Neither has a launch MSRP recorded.