AMD Ryzen 7 9800X3D vs AMD Ryzen 7 PRO 8845HS Comparison

The AMD Ryzen 7 9800X3D and AMD Ryzen 7 PRO 8845HS are both 8-core, 16-thread processors, but they are engineered for entirely different environments. The 9800X3D is a desktop part with a 120 W TDP, while the 8845HS is a 45 W mobile processor. The benchmark data reveals a clear split: the desktop chip dominates in raw compute throughput, while the mobile chip posts surprising wins in specific Cinebench tests. This analysis breaks down the head-to-head results, architectural differences, and the use cases where each processor is the rational choice.

Head-to-Head Benchmarks

The data shows a decisive victory for the AMD Ryzen 7 9800X3D, which wins 12 of the 15 head-to-head comparisons. The largest margin comes in the PassMark find prime numbers test, where the 9800X3D scores 423 against the 8845HS’s 87, a delta of 386.2%. This is not a marginal gain; it indicates a fundamental advantage in integer-heavy, latency-sensitive workloads. Similarly, the 9800X3D leads by 194% in PassMark physics (4083 vs 1389), and by 52.6% in extended instructions (38808 vs 25434). These results suggest that the desktop processor’s higher base clock of 4.70 GHz and larger cache provide a massive edge in tasks that depend on single-thread responsiveness and complex instruction processing.

In multi-threaded throughput, the 9800X3D continues its dominance. It scores 40009 in PassMark multithread versus 28572 for the 8845HS, a 40% advantage. The data compression test shows a 36.1% lead (468017 vs 343952), and floating-point math sees a 34.8% gap (79456 vs 58965). Integer math is closer but still favors the desktop chip by 19.5% (116709 vs 97625). Even in random string sorting, where memory latency often matters, the 9800X3D wins by 15.9% (48526 vs 41867). The single-thread PassMark score is 17.8% higher for the 9800X3D (4430 vs 3762), and data encryption shows an 8.2% advantage (22158 vs 20487). Across the board, the 9800X3D is the faster processor for compute-heavy tasks.

The AMD Ryzen 7 PRO 8845HS, however, wins three tests, all from the Cinebench suite. The most striking is Cinebench R23 single-core, where the 8845HS scores 3468 against the 9800X3D’s 2080, a delta of -40% (meaning the 9800X3D is 40% slower). This is an enormous reversal. The 8845HS also wins Cinebench R23 multi-core (24565 vs 23230, a -5.4% delta) and Cinebench R15 single-core (349 vs 328, a -6% delta). The Cinebench R15 multi-core test is the exception, with the 9800X3D winning 3647 to 2476, a 47.3% margin. These conflicting results suggest that the 8845HS’s Zen 4 architecture, despite its lower clocks, has an advantage in the specific rendering workload measured by Cinebench R23, possibly due to better sustained performance in that benchmark’s particular instruction mix.

The overall average benchmark scores reflect this split. The 9800X3D has an average score of 39768, while the 8845HS sits at 39325. The 9800X3D’s nearest rival, the AMD Ryzen 7 PRO 8840HS, scores 39603 with a deltaPct of 0.4%, meaning the 9800X3D is only 0.4% faster than that chip. The 8845HS’s nearest rival, the AMD EPYC 4245P, scores 39215 with a 0.3% delta, indicating the 8845HS is 0.3% faster. Both processors sit in the same performance tier overall, with the 9800X3D at the 87th percentile and the 8845HS at the 86th percentile of all CPUs. The head-to-head deltas, however, show that the distribution of wins is not even, with the 9800X3D winning the majority by large margins and the 8845HS winning fewer tests but by significant margins in Cinebench R23.

Architecture Differences

The two processors are built on different Zen microarchitectures. The AMD Ryzen 7 9800X3D uses Zen 5 with the Granite Ridge codename, while the AMD Ryzen 7 PRO 8845HS uses Zen 4 with the Hawk Point codename. Both are manufactured on the 4 nm process at TSMC, but the similarities end there. The 9800X3D has a die size of 70.6 mm² and contains 8,315 million transistors. The 8845HS, conversely, has a much larger die at 178 mm² and packs 25,000 million transistors. This difference is largely due to the 8845HS’s integrated Radeon 780M graphics, which requires substantial silicon area, whereas the 9800X3D has a more modest Radeon Graphics solution.

Cache configuration is a major differentiator. The 9800X3D has 80 KB of L1 cache per core and 1 MB of L2 per core, identical to the 8845HS’s L2. However, the L3 cache is vastly different: the 9800X3D has 96 MB of shared L3, while the 8845HS has only 16 MB. This 6x difference in L3 capacity is likely a key factor in the 9800X3D’s wins in data compression and find prime numbers, as larger caches reduce memory latency for repeated access patterns. The 8845HS’s smaller cache may explain its lower scores in those specific tests.

Clock speeds also favor the desktop part. The 9800X3D has a base clock of 4.70 GHz and a boost clock of 5.20 GHz. The 8845HS has a base clock of 3.80 GHz and a boost clock of 5.10 GHz. The 9800X3D’s higher base clock is critical for sustained workloads, while the boost clocks are closer. The TDPs reflect their market segments: the 9800X3D draws 120 W, while the 8845HS is rated for just 45 W. This power envelope difference explains why the 8845HS can exist in a mobile chassis and why the 9800X3D requires a desktop socket (AM5 vs FP7). The 9800X3D also supports PCIe Gen 5 with 24 lanes, while the 8845HS supports PCIe Gen 4 with 20 lanes. Both support DDR5 memory with dual-channel buses and 89.6 GB/s bandwidth, and both support ECC memory.

The 9800X3D has an unlocked multiplier, making it overclockable, while the 8845HS is locked. The release dates differ: the 9800X3D launched on 2024-11-06, and the 8845HS launched on 2024-04-15. The 9800X3D has a launch MSRP of $479, while the 8845HS has no listed launch MSRP. The 9800X3D is part of the 9000 series and targets the desktop market, while the 8845HS is in the 8000 series and targets the mobile market.

FAQ

Q: Which processor has a higher single-thread score in PassMark?

A: The AMD Ryzen 7 9800X3D scores 4430 in PassMark single-thread, versus 3762 for the AMD Ryzen 7 PRO 8845HS, a 17.8% advantage.

Q: The 8845HS wins Cinebench R23 multi-core. By how much?

A: The 8845HS scores 24565 in Cinebench R23 multi-core, while the 9800X3D scores 23230. This is a -5.4% delta, meaning the 9800X3D is 5.4% slower in that test.

Q: What is the largest single benchmark margin between the two?

A: The largest margin is in PassMark find prime numbers, where the 9800X3D scores 423 versus the 8845HS’s 87, a delta of 386.2%.

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

A: Yes, both are built on the 4 nm process at TSMC. However, the 9800X3D uses the Zen 5 architecture, while the 8845HS uses Zen 4.

Q: How much L3 cache does each processor have?

A: The 9800X3D has 96 MB of shared L3 cache, while the 8845HS has 16 MB of shared L3 cache.

Q: Which processor has a higher base clock?

A: The 9800X3D has a base clock of 4.70 GHz, which is higher than the 8845HS’s 3.80 GHz base clock.

Specification Differences

The two processors differ in several core specifications. The architecture is different: Zen 5 for the 9800X3D versus Zen 4 for the 8845HS. The base clock differs significantly: 4.70 GHz versus 3.80 GHz. The boost clock is closer, with 5.20 GHz versus 5.10 GHz. The TDP is a major divergence: 120 W for the 9800X3D and 45 W for the 8845HS. The socket is also different: AMD Socket AM5 for the desktop part and AMD Socket FP7 for the mobile part.

The cache hierarchy shows differences in L1 and L3. The 9800X3D has 80 KB of L1 per core, while the 8845HS has 64 KB per core. L2 is the same at 1 MB per core. L3 is 96 MB shared for the 9800X3D versus 16 MB shared for the 8845HS. The process node is the same (4 nm), but the transistor count and die size differ: 8,315 million transistors and 70.6 mm² for the 9800X3D, versus 25,000 million transistors and 178 mm² for the 8845HS.

PCIe support differs: Gen 5 with 24 lanes for the 9800X3D, and Gen 4 with 20 lanes for the 8845HS. The integrated graphics are different, with the 9800X3D featuring Radeon Graphics and the 8845HS featuring Radeon 780M. The multiplier is unlocked on the 9800X3D but locked on the 8845HS. The market segment is Desktop versus Mobile, and the release dates are 2024-11-06 versus 2024-04-15. The launch MSRP for the 9800X3D is $479, while the 8845HS has no launch MSRP listed.

The Verdict

The data indicates that the AMD Ryzen 7 9800X3D is the superior processor for raw performance in most workloads. It wins 12 of 15 head-to-head tests, with particularly large margins in compute-heavy tasks like PassMark physics, extended instructions, and data compression. Its 96 MB L3 cache and higher base clock provide a clear advantage in the benchmark results. The 8845HS, however, is not without merit. Its wins in Cinebench R23 single-core and multi-core are substantial, showing that in certain rendering workloads, it can outperform the 9800X3D despite its lower TDP.

For a desktop user seeking maximum compute performance, the 9800X3D is the clear choice based on the data. Its higher average benchmark score (39768 vs 39325) and 87th percentile ranking support this. For a mobile user, the 8845HS is the only viable option given its 45 W TDP and FP7 socket, but the data shows it can hold its own in specific tasks. The 8845HS’s wins in Cinebench R23 suggest that its Zen 4 architecture is well-optimized for that particular workload, but the 9800X3D’s broader dominance across the rest of the benchmarks makes it the overall winner.

Where Each One Wins

The AMD Ryzen 7 9800X3D wins in scenarios that demand high throughput and low latency. Its wins in PassMark multithread (40009 vs 28572), data compression (468017 vs 343952), and floating-point math (79456 vs 58965) make it the better option for scientific computing, data analysis, and content creation that relies on these operations. The 386.2% advantage in find prime numbers and the 194% advantage in physics also point to strengths in simulation and mathematical modeling. For any workload that can utilize its 96 MB L3 cache, the 9800X3D is the better performer.

The AMD Ryzen 7 PRO 8845HS wins in specific Cinebench workloads. The Cinebench R23 single-core score of 3468 versus 2080 is a 40% advantage, which is the largest single-score delta in its favor. This suggests that in rendering tasks that are heavily dependent on single-core performance, the 8845HS is superior. Its Cinebench R23 multi-core win (24565 vs 23230) also shows that in certain multi-threaded rendering scenarios, it can beat the desktop chip. These wins are notable, but they are isolated to the Cinebench suite. For users whose primary workload is Cinebench rendering, the 8845HS is the better choice; for everything else, the 9800X3D is the data-backed pick.