AMD Ryzen 7 9850X3D vs Intel Core Ultra 5 225H Comparison

AMD Ryzen 7 9850X3D and Intel Core Ultra 5 225H represent two distinct approaches to processor design: one is a high-power desktop flagship built for maximum throughput, the other a low-power mobile chip optimized for efficiency. The database records 15 head-to-head benchmark comparisons between the two, with the AMD part winning 14 and the Intel part winning 1. The average benchmark score for the Ryzen 7 9850X3D is 58386, placing it in the 92nd percentile of all CPUs, while the Core Ultra 5 225H averages 31508, good for the 82nd percentile. These figures establish a clear performance hierarchy, but the nature of the wins and the architectural context explain why the gap varies so widely by workload.

Where Each One Wins

The Ryzen 7 9850X3D dominates the overwhelming majority of recorded workloads. Its wins span rendering, compression, encryption, integer math, prime number finding, multithreaded tasks, physics simulation, string sorting, and single-thread performance. The largest margins come in physics simulation, where the AMD part scores 4171 against 1877 for the Intel chip, a 122.2% advantage, and in prime number finding, where the AMD score of 435 is 97.7% higher than Intel's 220. Extended instructions show a 79.2% lead for AMD (39272 vs 21915), and integer math follows at 79.7% (123140 vs 68520). Data compression favors AMD by 67.4% (474501 vs 283451). These are compute-heavy tasks that benefit from raw core performance, large caches, and high clock speeds.

The Intel Core Ultra 5 225H wins exactly one benchmark: floating point math. It scores 86540 against AMD's 81998, a 5.2% margin. This is a notable exception to the pattern, indicating that the Intel architecture handles floating-point workloads with particular efficiency relative to its other capabilities. The win is significant for users whose workloads are dominated by floating-point calculations, but it is the only area where Intel shows an advantage.

The split is clear: AMD wins in virtually every category that stresses integer throughput, cache-sensitive operations, and multi-threaded scaling, while Intel wins narrowly in a single floating-point test. For general-purpose productivity, rendering, and simulation, the Ryzen part is the stronger choice. For specialized floating-point number crunching, the Intel chip has a measurable edge.

Architecture Differences

The two processors are built on fundamentally different design philosophies. The Ryzen 7 9850X3D is a desktop part from AMD's 9000 series, using the Zen 5 architecture on the Granite Ridge codename. It is fabricated on a 4 nm process at TSMC, with 8 cores and 16 threads. The chip has a base clock of 4.70 GHz and a boost clock of 5.60 GHz, with a TDP of 120 watts. It uses AMD Socket AM5 and supports DDR5 memory over a dual-channel bus with 89.6 GB/s of bandwidth. The cache hierarchy is notable: 80 KB of L1 per core, 1 MB of L2 per core, and 96 MB of shared L3 cache. This large L3 pool is characteristic of the X3D line and explains its strength in cache-sensitive workloads. The chip also supports ECC memory, has a Gen 5 PCIe interface with 24 lanes, and includes integrated Radeon Graphics. It has an unlocked multiplier and a launch MSRP of $499.

The Intel Core Ultra 5 225H belongs to the Core Ultra Series 2, using the Arrow Lake architecture on the Arrow Lake-H codename. It is a mobile part fabricated on a 3 nm process at TSMC, with 14 cores and 14 threads. The core count is higher than AMD's, but there are no hyper-threading threads, so thread count equals core count. Base clock is 1.70 GHz with a boost of 4.90 GHz, and TDP is just 28 watts, reflecting its mobile target. It uses Intel BGA 2049, supports DDR5 and LPDDR5X memory over a dual-channel bus with 102.4 GB/s of bandwidth, which is higher than the AMD part's memory bandwidth. L1 cache is 192 KB per core, L2 is 3 MB per core, and L3 is 18 MB shared, substantially smaller than AMD's 96 MB. ECC memory is not supported. PCIe is Gen 5 with 8 lanes, and integrated graphics are Arc Graphics 130T. The multiplier is locked.

The process node difference is slight, with Intel at 3 nm versus AMD at 4 nm, but the transistor counts and die sizes are not recorded for Intel, while AMD lists 8,315 million transistors on a 70.6 mm² die. The memory bandwidth advantage goes to Intel (102.4 GB/s vs 89.6 GB/s), but the cache advantage goes decisively to AMD. The combination of higher clocks, larger L3 cache, and SMT threads explains why AMD wins most benchmarks despite having fewer physical cores.

FAQ

Q: Why does the AMD Ryzen 7 9850X3D win so many more benchmarks than the Intel Core Ultra 5 225H?

A: The database shows the AMD part has a 92nd percentile average score versus 82nd for Intel, and it wins 14 of 15 head-to-head tests. The primary factors are its higher boost clock (5.60 GHz vs 4.90 GHz), its 96 MB shared L3 cache versus 18 MB, and its 16 threads versus 14, which together produce large advantages in cache-sensitive and multithreaded workloads.

Q: The Intel chip has more cores (14 vs 8), so why does it lose in multithreaded tests?

A: Although Intel has more cores, it has fewer threads (14 vs 16) and much lower clock speeds (1.70 GHz base vs 4.70 GHz base). In Cinebench R23 multicore, AMD scores 22807 against Intel's 14629.5, a 55.9% difference. The AMD chip's higher clocks and larger cache outweigh the core count deficit in the recorded tests.

Q: Is there any workload where the Intel Core Ultra 5 225H outperforms the AMD chip?

A: Yes, in floating point math. Intel scores 86540 versus AMD's 81998, a 5.2% margin. This is the only benchmark in the head-to-head set where Intel wins, and it suggests the Arrow Lake architecture has a specific strength in floating-point calculations.

Q: How do the two chips compare in single-thread performance?

A: AMD leads in every single-thread test. In Cinebench R23 single-core, AMD scores 2228 versus 1969, a 13.2% lead. In PassMark single-thread, AMD scores 4704 versus 4258, a 10.5% lead. The AMD chip's higher boost clock and more efficient Zen 5 core design account for this consistent advantage.

Q: What is the significance of the 96 MB L3 cache on the AMD chip?

A: The large shared L3 cache helps workloads that repeatedly access the same data. Evidence appears in data compression, where AMD scores 474501 versus 283451, a 67.4% lead, and in random string sorting, where AMD leads by 47.9% (49764 vs 33654). These tasks benefit from keeping more data on-chip.

Q: How do the chips compare in memory bandwidth?

A: Intel has the higher memory bandwidth at 102.4 GB/s versus AMD's 89.6 GB/s. Despite this, AMD wins most memory-sensitive benchmarks, indicating that cache size and latency matter more than raw bandwidth in the recorded tests.

Specification Differences

The two processors differ across nearly every major specification. The AMD Ryzen 7 9850X3D uses 8 cores and 16 threads, while the Intel Core Ultra 5 225H uses 14 cores and 14 threads. Base clocks are 4.70 GHz for AMD and 1.70 GHz for Intel, with boost clocks of 5.60 GHz and 4.90 GHz respectively. TDP differs substantially: 120 watts for AMD versus 28 watts for Intel. The AMD part is a desktop chip on AMD Socket AM5, while Intel is mobile on Intel BGA 2049. Architecture differs, with Zen 5 (Granite Ridge) versus Arrow Lake (Arrow Lake-H). Process nodes are 4 nm for AMD and 3 nm for Intel, both at TSMC.

Cache configurations are markedly different. AMD has 80 KB L1 per core, 1 MB L2 per core, and 96 MB shared L3. Intel has 192 KB L1 per core, 3 MB L2 per core, and 18 MB shared L3. Memory support shows AMD using DDR5 only, while Intel supports DDR5 and LPDDR5X. Memory bandwidth is 89.6 GB/s for AMD and 102.4 GB/s for Intel. ECC memory is supported on AMD but not on Intel. PCIe lanes are 24 for AMD versus 8 for Intel, both Gen 5. Integrated graphics are Radeon Graphics on AMD and Arc Graphics 130T on Intel. AMD has an unlocked multiplier; Intel's is locked. The release dates differ, with Intel launching earlier. AMD lists a launch MSRP of $499; Intel has no recorded launch MSRP.

Head-to-Head Benchmarks

The largest win for the AMD Ryzen 7 9850X3D comes in PassMark physics, where it scores 4171 against Intel's 1877, a 122.2% advantage. This is more than double the Intel score and indicates a massive gap in simulation performance. The next largest margin is in prime number finding, where AMD scores 435 versus 220, a 97.7% lead. Integer math follows closely at 79.7% (123140 vs 68520), and extended instructions at 79.2% (39272 vs 21915). These are all compute-intensive integer workloads where AMD's higher clocks and larger cache provide a decisive edge.

In Cinebench R23 multicore, AMD leads by 55.9% (22807 vs 14629.5), and in R15 multicore by 48.1% (3551 vs 2397.5). Data compression shows a 67.4% lead for AMD (474501 vs 283451), and random string sorting a 47.9% lead (49764 vs 33654). Multithread performance in PassMark shows AMD ahead by 46.9% (41318 vs 28119). Single-thread tests show smaller but consistent margins: Cinebench R23 single-core is 13.2% in AMD's favor (2228 vs 1969), R15 single-core is 18.9% (343 vs 288.5), and PassMark single-thread is 10.5% (4704 vs 4258). Data encryption is the closest AMD win, at 6.7% (22856 vs 21428).

The sole Intel win is in floating point math, where the Core Ultra 5 225H scores 86540 against AMD's 81998, a 5.2% margin. This is the only benchmark where the Intel chip records a higher score, and it shows that the Arrow Lake architecture has a specific strength in floating-point throughput that is not matched by its integer performance.

The Verdict

The recorded data supports a clear split in use cases. The AMD Ryzen 7 9850X3D is the stronger processor for nearly every measured workload. It wins 14 of 15 head-to-head benchmarks, with margins ranging from 6.7% in data encryption to 122.2% in physics simulation. Its higher clock speeds, 16 threads, and 96 MB L3 cache make it the choice for rendering, compression, integer math, multithreaded applications, and general productivity. The 92nd percentile ranking and average score of 58386 confirm its position as a high-end desktop part.

The Intel Core Ultra 5 225H is the better option only for workloads dominated by floating-point math, where its 86540 score beats AMD's 81998. Its lower TDP of 28 watts, mobile form factor, and higher memory bandwidth of 102.4 GB/s make it suitable for portable systems, but the benchmark data shows it trails AMD by large margins in most compute tasks. The 82nd percentile ranking and average score of 31508 place it in a lower performance tier. Users seeking maximum throughput should choose the AMD part, while those with specific floating-point requirements and a need for a low-power mobile chip may find the Intel part adequate.