AMD Ryzen 9 8945HX vs AMD Ryzen Embedded 9700X Comparison

FAQ

Q: How do the core counts compare between the AMD Ryzen 9 8945HX and the AMD Ryzen Embedded 9700X?

A: The Ryzen 9 8945HX has 16 cores and 32 threads, while the Ryzen Embedded 9700X has 8 cores and 16 threads. This gives the mobile processor twice the thread count of the embedded part.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen Embedded 9700X boosts to 5.50 GHz, slightly ahead of the Ryzen 9 8945HX, which boosts to 5.40 GHz. The embedded chip also has a higher base clock at 3.80 GHz versus 2.50 GHz.

Q: What are the process node differences?

A: The Ryzen 9 8945HX uses a 5 nm TSMC process with 13,140 million transistors across a dual-chip design (2x 71 mm²). The Ryzen Embedded 9700X uses a 4 nm TSMC process with 8,315 million transistors on a 70.6 mm² die.

Q: Do both processors support ECC memory?

A: No. The Ryzen Embedded 9700X supports ECC memory, while the Ryzen 9 8945HX does not. Both support DDR5 memory in a dual-channel configuration.

Q: What is the market segment for each chip?

A: The Ryzen 9 8945HX is a mobile processor (8000 series, Dragon Range) designed for laptops, while the Ryzen Embedded 9700X is a desktop-class embedded processor (9000 series, Granite Ridge) in the Ryzen Embedded lineup.

Q: Which processor has a higher memory bandwidth rating?

A: The Ryzen Embedded 9700X has a memory bandwidth of 89.6 GB/s, while the Ryzen 9 8945HX is rated at 83.2 GB/s. The embedded chip is ahead on paper in this metric.

Where Each One Wins

The recorded data shows a clear split between the two processors based on workload type and platform priorities. The Ryzen 9 8945HX is the multithreaded heavyweight. Its 16 cores and 32 threads give it a substantial advantage in heavily parallel workloads. The benchmark suite for the 8945HX includes a Cinebench R23 multi-core score of 42,713, which reflects strong scaling across its 32 threads. In contrast, the Ryzen Embedded 9700X has no recorded benchmark scores in the database, so its measured performance cannot be directly quantified against the mobile part.

The Ryzen Embedded 9700X wins on platform-level attributes. It supports ECC memory, which is a meaningful feature for embedded and reliability-focused deployments. Its 4 nm process node is denser than the 5 nm node used by the 8945HX, and its higher base clock of 3.80 GHz suggests better responsiveness in lightly threaded tasks, even though no direct single-thread benchmarks exist for it. Its desktop socket (AM5) and desktop market segment indicate a different intended environment than the mobile FL1 socket of the 8945HX.

For mobile computing, the Ryzen 9 8945HX is the only viable option of the two, given its mobile market segment and lower 55 W TDP. For embedded systems that require ECC memory and a desktop-style socket, the Ryzen Embedded 9700X holds the advantage. The data indicates that these are not direct competitors but rather two parts optimized for different environments, with the 8945HX delivering raw multi-threaded capability and the 9700X offering platform features suited to embedded applications.

Architecture Differences

The architecture gap between these two processors is significant. The Ryzen 9 8945HX is built on Zen 4 with the Dragon Range codename, part of the 8000 series generation. It uses a 5 nm TSMC process and packs 13,140 million transistors across a dual-chiplet design with a total die size of 2x 71 mm². The Ryzen Embedded 9700X, by contrast, is a Zen 5 design under the Granite Ridge codename, part of the 9000 series generation. It uses a 4 nm TSMC process with 8,315 million transistors on a single 70.6 mm² die.

Cache organization differs as well. The 8945HX has 64 KB of L1 cache per core and 1 MB of L2 per core, with a 64 MB L3 cache. The 9700X has 80 KB of L1 per core and 1 MB of L2 per core, but only 32 MB of shared L3 cache. This means the mobile processor has twice the total L3 capacity, which can benefit certain workloads that rely heavily on large working sets.

The integrated graphics also differ. The 8945HX uses a Radeon 610M iGPU, while the 9700X features a generic Radeon Graphics solution. Neither part includes 3D V-Cache, and both have unlocked multipliers. The memory support is DDR5 for both, but the 9700X adds ECC capability, a feature absent from the 8945HX. PCIe support is Gen 5 for both, though the 8945HX provides 28 CPU-only lanes versus 24 for the 9700X.

The architecture differences point to a generational shift. The Zen 5-based 9700X uses a newer process node and a newer core architecture, which explains its higher clock speeds despite fewer cores. The Zen 4-based 8945HX compensates with a much larger core count and bigger L3 cache, making it a different kind of performance animal.

Specification Differences

The two processors diverge on nearly every major specification. Core count is 16 versus 8, and threads are 32 versus 16. Base clocks are 2.50 GHz for the 8945HX and 3.80 GHz for the 9700X. Boost clocks are closer, at 5.40 GHz versus 5.50 GHz, giving the embedded chip a slight edge. TDP is 55 W for the mobile part and 65 W for the embedded part, a modest difference given the core count disparity.

The sockets are completely different: the 8945HX uses AMD Socket FL1, while the 9700X uses AMD Socket AM5. The process node is 5 nm versus 4 nm. Transistor counts are 13,140 million versus 8,315 million, and die sizes are 2x 71 mm² versus 70.6 mm². L1 cache per core is 64 KB versus 80 KB, L2 cache per core is 1 MB for both, and L3 cache is 64 MB versus 32 MB (shared). Memory bandwidth is 83.2 GB/s versus 89.6 GB/s. ECC memory support is false for the 8945HX and true for the 9700X. PCIe lanes are 28 versus 24, both Gen 5. Integrated graphics are Radeon 610M versus Radeon Graphics. Market segments are Mobile versus Desktop. Release dates are April 22, 2025 for the 8945HX and October 6, 2025 for the 9700X. Both are marked Active in production status, both have unlocked multipliers, and neither has a launch MSRP in the database.

Head-to-Head Benchmarks

The head-to-head benchmark dataset is empty, and the Ryzen Embedded 9700X has no recorded benchmark scores in the database. Therefore, the measured performance comparison relies entirely on the benchmarks logged for the Ryzen 9 8945HX and its position among rivals.

The 8945HX holds a 95th percentile ranking among all CPUs in the database, with an average benchmark score of 76,212. Its nearest rivals include the Intel Core Ultra 9 285HX, which scores 76,155 on average, placing the 8945HX 0.1% ahead. The AMD EPYC Embedded 8224P and AMD Ryzen Threadripper PRO 9945WX both score higher on average (76,492 and 76,513 respectively), putting the 8945HX 0.4% behind each. The AMD Ryzen 9 9950X3D scores 75,779, which is 0.6% lower than the 8945HX.

In Cinebench tests, the 8945HX delivers a multi-core score of 42,713 in R23, a single-core score of 6,030 in R23, a multi-core score of 17,939 in R20, and a single-core score of 2,532 in R20. The older R15 test shows a multi-core score of 4,305 and a single-core score of 607. PassMark results include a multi-thread score of 51,405, a single-thread score of 3,907, integer math at 195,180, floating-point math at 117,453, data compression at 677,755, data encryption at 40,836, extended instructions at 49,823, prime number finding at 262, random string sorting at 78,781, and physics at 2,168.

Since the 9700X lacks recorded scores, the data cannot confirm how the Zen 5 architecture translates to measured performance. The closest comparison available is through architectural differences: the 9700X has a higher boost clock and newer process node, but the 8945HX has double the cores and double the L3 cache. The benchmark data shows the 8945HX sits comfortably in the top percentile of all CPUs, surrounded by high-end desktop and workstation parts. Without benchmark data for the 9700X, the database records no direct wins for either processor in head-to-head testing.