AMD Ryzen Embedded 8840U vs AMD Ryzen Embedded 9700X Comparison

Head-to-Head Benchmarks

The database contains no recorded benchmark scores for either the AMD Ryzen Embedded 8840U or the AMD Ryzen Embedded 9700X. Both processors show an average benchmark score of zero, and the head-to-head benchmark table is empty. The wins counter for each processor is zero, meaning there are no measured performance comparisons to draw from in the recorded data.

Because no benchmark results exist for these two parts, the percentile ranking for both is identical at 50. This places each processor in the exact middle of the database's CPU performance distribution, but this percentile is based on the absence of data rather than on actual measured performance. The lack of benchmark entries means the database cannot currently differentiate these two processors by raw performance scores.

What can be compared directly from the recorded specifications is the clock speed envelope. The Ryzen Embedded 8840U has a base clock of 3.30 GHz and a boost clock of 5.10 GHz. The Ryzen Embedded 9700X has a base clock of 3.80 GHz and a boost clock of 5.50 GHz. The 9700X leads in both metrics, with a 0.50 GHz higher base clock and a 0.40 GHz higher boost clock. These clock differences suggest the 9700X has a higher frequency ceiling, but without benchmark scores, the practical performance gap cannot be quantified.

The thermal design power values differ substantially. The 8840U is rated at 28 watts, while the 9700X is rated at 65 watts. This 37 watt difference in TDP indicates the 9700X is designed to sustain higher power draw, which typically correlates with higher sustained performance under load. However, the database contains no measurements confirming how this TDP difference translates into actual benchmark outcomes.

The Verdict

The data cannot support a performance verdict between these two processors. With zero benchmark scores recorded for either unit, there is no measured evidence that one outperforms the other in any workload. The only objective differentiators available are the specification fields, which show the 9700X with higher clocks, higher TDP, newer architecture generation, and a different socket.

For a builder selecting between these two, the recorded data indicates the 9700X is the higher-clocked part with a 5.50 GHz boost versus 5.10 GHz on the 8840U. The 9700X also belongs to the Zen 5 architecture generation per the database, while the 8840U belongs to Zen 4. The 9700X has double the L3 cache at 32 MB shared versus 16 MB shared on the 8840U. These specification advantages align with the 9700X's higher 65 watt TDP.

The 8840U is the lower-power option at 28 watts, uses the AMD Socket FP8, and carries the Radeon 780M integrated graphics. The 9700X uses AMD Socket AM5, has an unlocked multiplier, and lists Radeon Graphics as its integrated solution. The 8840U is classified as a mobile segment part, while the 9700X is classified as desktop. The 9700X has a later release date of 2025-10-06 compared to 2024-04-01 for the 8840U.

Neither processor has a recorded launch MSRP in the database, so no price-based comparison is possible. The production status for both is listed as Active.

Where Each One Wins

Based strictly on recorded specifications, the Ryzen Embedded 9700X holds advantages in several measurable fields. It has a higher base clock of 3.80 GHz versus 3.30 GHz, and a higher boost clock of 5.50 GHz versus 5.10 GHz. Its L3 cache is 32 MB shared, double the 16 MB shared on the 8840U. The L1 cache per core is 80 KB on the 9700X versus 64 KB on the 8840U. The PCIe interface is Gen 5 with 24 lanes on the 9700X, compared to Gen 4 with 20 lanes on the 8840U. The multiplier is unlocked on the 9700X, which allows overclocking, while the 8840U has a locked multiplier.

The Ryzen Embedded 8840U wins in power efficiency based on the recorded TDP. At 28 watts, it consumes less than half the power budget of the 9700X at 65 watts. The 8840U also has a larger transistor count at 25,000 million compared to 8,315 million on the 9700X, and a larger die size at 178 mm² versus 70.6 mm². The 8840U lists Radeon 780M as its integrated graphics, which is a specific model designation, whereas the 9700X lists the generic Radeon Graphics.

Both processors share identical memory support specifications. Each supports DDR5 memory in a dual-channel configuration with a memory bandwidth of 89.6 GB/s. Both support ECC memory. Both have 8 cores and 16 threads. Both use a 4 nm process node from TSMC.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen Embedded 9700X has a boost clock of 5.50 GHz, which is 0.40 GHz higher than the 5.10 GHz boost clock on the AMD Ryzen Embedded 8840U.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen Embedded 8840U and the AMD Ryzen Embedded 9700X are listed with ECC memory support enabled.

Q: What is the TDP difference between the two processors?

A: The AMD Ryzen Embedded 8840U has a TDP of 28 watts, while the AMD Ryzen Embedded 9700X has a TDP of 65 watts. The 9700X is rated for 37 watts higher power draw.

Q: Are both processors built on the same process node?

A: Yes, both processors use a 4 nm process node fabricated by TSMC.

Q: Which processor has more L3 cache?

A: The AMD Ryzen Embedded 9700X has 32 MB of shared L3 cache, which is double the 16 MB of shared L3 cache on the AMD Ryzen Embedded 8840U.

Q: Do the two processors use the same socket?

A: No. The AMD Ryzen Embedded 8840U uses AMD Socket FP8, while the AMD Ryzen Embedded 9700X uses AMD Socket AM5.

Q: Which processor has an unlocked multiplier?

A: The AMD Ryzen Embedded 9700X has an unlocked multiplier. The AMD Ryzen Embedded 8840U has a locked multiplier.

Architecture Differences

The AMD Ryzen Embedded 8840U is built on the Zen 4 architecture with the codename Hawk Point. Its generation is listed as Ryzen Embedded (Zen 4 (Hawk Point)). The AMD Ryzen Embedded 9700X uses the Zen 5 architecture with the codename Granite Ridge. Its generation is listed as Ryzen Embedded (Zen 5 (Granite Ridge)). The architecture field for the 9700X is empty in the database, but the codename and generation fields confirm the Zen 5 designation.

Both processors are fabricated on a 4 nm process node at TSMC, but their physical characteristics differ substantially. The 8840U contains 25,000 million transistors on a die size of 178 mm². The 9700X contains 8,315 million transistors on a die size of 70.6 mm². The 8840U has a much larger transistor count and die area despite using the same process node, which reflects the different design goals of the two chips.

The cache hierarchy differs in the L1 and L3 levels. The 8840U has 64 KB of L1 cache per core, while the 9700X has 80 KB of L1 cache per core. Both have 1 MB of L2 cache per core. The shared L3 cache is 16 MB on the 8840U and 32 MB on the 9700X. Neither processor has a 3D V-Cache variant recorded.

The integrated graphics solutions differ. The 8840U carries the Radeon 780M, while the 9700X carries a generic Radeon Graphics solution. The database does not specify the compute unit count, clock speed, or shading units for either integrated GPU, so no direct graphics performance comparison is possible from the recorded data.

Specification Differences

The two processors diverge across multiple specification fields. The base clock differs by 0.50 GHz: 3.30 GHz on the 8840U versus 3.80 GHz on the 9700X. The boost clock differs by 0.40 GHz: 5.10 GHz on the 8840U versus 5.50 GHz on the 9700X.

The TDP ratings differ by 37 watts: 28 watts on the 8840U versus 65 watts on the 9700X. The sockets are different: AMD Socket FP8 on the 8840U versus AMD Socket AM5 on the 9700X. The PCIe interface differs in both generation and lane count: Gen 4 with 20 lanes on the 8840U versus Gen 5 with 24 lanes on the 9700X.

The market segment classification differs: the 8840U is listed as Mobile, while the 9700X is listed as Desktop. The multiplier unlock status differs: locked on the 8840U, unlocked on the 9700X. The release dates differ: 2024-04-01 for the 8840U and 2025-10-06 for the 9700X.

The part numbers differ: the 8840U has an unknown part number, while the 9700X has the part number 100-000001404E. The cache hierarchy differs at the L1 and L3 levels: 64 KB per core L1 and 16 MB shared L3 on the 8840U, versus 80 KB per core L1 and 32 MB shared L3 on the 9700X.

The transistor count and die size differ: 25,000 million transistors and 178 mm² on the 8840U, versus 8,315 million transistors and 70.6 mm² on the 9700X. The integrated graphics differ: Radeon 780M on the 8840U versus Radeon Graphics on the 9700X.

The shared specifications include 8 cores, 16 threads, 1 MB L2 cache per core, DDR5 memory support, dual-channel memory bus, 89.6 GB/s memory bandwidth, ECC memory support, 4 nm process node, TSMC foundry, and Active production status. Neither processor has a recorded launch MSRP in the database.