AMD Ryzen 3 3100U vs Intel Core Ultra 9 285 Comparison

The AMD Ryzen 3 3100U and the Intel Core Ultra 9 285 occupy opposite ends of the performance spectrum, and the recorded benchmark data confirms a decisive, one-sided comparison. The Ryzen 3 3100U, a 3000 series mobile chip, delivers a modest average benchmark score of 6247, while the Core Ultra 9 285, a desktop flagship from the Core Ultra Series 2, posts an average of 75488. This 12-fold difference in average score sets the stage for a detailed examination of where each processor wins and what architectural choices drive the gap.

Where Each One Wins

The head-to-head benchmark results are unambiguous: the Intel Core Ultra 9 285 wins all 11 recorded comparisons against the AMD Ryzen 3 3100U. The Ryzen 3 3100U does not secure a single victory in any tested workload, from data compression to single-threaded tasks. This means the AMD chip cannot claim an advantage in any of the measured categories, including integer math, floating point math, encryption, physics, or sorting.

The Intel chip’s wins are not marginal. In floating point math, the Core Ultra 9 285 scores 194988 against the Ryzen 3 3100U’s 5854, a delta of -97 percent from the AMD processor’s perspective. Data encryption shows a similar chasm: 46949 for Intel versus 1972 for AMD, a -95.8 percent delta. Even in the closest relative comparison, single-thread performance, the Intel chip leads with 4881 points versus 1592, a -67.4 percent delta. The data indicates that the Ryzen 3 3100U is positioned for basic mobile tasks, while the Core Ultra 9 285 is engineered for high-throughput desktop workloads. The only nuance is that the Ryzen chip’s percentile rank of 62 places it above a majority of all CPUs in the database, but its absolute scores remain far below the Intel processor’s 95th percentile standing.

Architecture Differences

The two processors are built on fundamentally different architectures and manufacturing processes. The AMD Ryzen 3 3100U uses the Picasso codename, part of the Ryzen 3 generation built on the Zen+ microarchitecture, and is fabricated on a 12 nm process at GlobalFoundries. The Intel Core Ultra 9 285 uses the Arrow Lake architecture, specifically Arrow Lake-S, and is built on a 3 nm process at TSMC.

The transistor counts reflect the scale difference. The AMD chip integrates 4,940 million transistors on a 210 mm² die, while the Intel chip packs 17,800 million transistors on a 243 mm² die. Die size is similar, but the Intel processor fits more than three times the transistors into a comparable area, enabled by the denser 3 nm node.

Cache hierarchies diverge sharply. The Ryzen 3 3100U has 96 KB of L1 cache per core and 512 KB of L2 per core, with 4 MB of shared L3 cache. The Core Ultra 9 285 uses 192 KB of L1 per core and 3 MB of L2 per core, with 36 MB of shared L3. The Intel chip’s L3 cache is nine times larger, which directly supports its multi-threaded and data-heavy workloads.

Integrated graphics differ as well. The AMD chip carries Radeon Vega 8 graphics, while the Intel chip includes Arc Xe-LPG Graphics with 64 execution units. Memory support also sets them apart: the Ryzen 3 3100U uses DDR4 with a dual-channel bus and 38.4 GB/s bandwidth, whereas the Core Ultra 9 285 uses DDR5, also dual-channel, but with 102.4 GB/s bandwidth. The Intel chip supports ECC memory, the AMD chip does not. PCIe connectivity favors Intel with Gen 5 and 20 CPU lanes, versus Gen 3 on the AMD side.

Head-to-Head Benchmarks

The largest proportional gaps appear in compute-heavy tests. Floating point math shows the Intel Core Ultra 9 285 scoring 194988 against the Ryzen 3 3100U’s 5854, a 33-fold difference. Integer math follows with 164869 versus 8873, a 18.6-fold gap. Extended instructions, which test SIMD and specialized operations, yield 45357 for Intel versus 2116 for AMD, a 21.4-fold difference. Prime number finding, a pure integer loop test, shows 459 versus 18, a 25.5-fold gap.

Data compression and encryption also heavily favor Intel. Compression scores 602121 versus 38455, a 15.7-fold difference. Encryption scores 46949 versus 1972, a 23.8-fold difference. Random string sorting, which stresses memory access patterns, shows 73651 versus 4666, a 15.8-fold gap. The multithread score, a broad measure of parallel throughput, is 56602 versus 3348, a 16.9-fold difference. Physics simulation scores 3598 versus 232, a 15.5-fold gap.

The single-thread tests show the smallest relative gap, but it remains substantial. The Intel chip scores 4881 versus 1592, a 3.1-fold difference. This indicates that even on a per-core basis, the Arrow Lake architecture’s higher clock speeds and newer microarchitecture deliver significantly more performance. The base clock of 2.50 GHz and boost clock of 5.60 GHz on the Intel chip compare to 1.90 GHz base and 3.20 GHz boost on the AMD chip.

Specification Differences

The two processors differ across nearly every recorded specification field. The AMD Ryzen 3 3100U has 2 cores and 2 threads, while the Intel Core Ultra 9 285 has 24 cores and 24 threads. Base clocks are 1.90 GHz versus 2.50 GHz, and boost clocks are 3.20 GHz versus 5.60 GHz. Thermal design power is 15 watts for the AMD chip versus 65 watts for the Intel chip, reflecting the mobile versus desktop market segments.

Socket types are incompatible: AMD Socket FP5 for the Ryzen 3 3100U and Intel Socket 1851 for the Core Ultra 9 285. The AMD chip’s production status is listed as Active, and the Intel chip is also Active. Release dates differ, with the AMD chip dated 2026-05-31 and the Intel chip dated 2024-12-31. The Intel processor has a launch MSRP of $579, while the AMD chip has no recorded launch price.

The Intel chip is marked for the Desktop segment, while the AMD chip is marked for Mobile. The AMD part number is YM3100C4T2OFG, and the Intel part number is SRQD4. Neither processor has an unlocked multiplier. The AMD chip’s generation is listed as "Ryzen 3 (Zen+ (Picasso))", while the Intel chip’s generation is "Ultra 9 (Arrow Lake)".

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 9 285 has 24 cores and 24 threads, while the AMD Ryzen 3 3100U has 2 cores and 2 threads.

Q: What is the average benchmark score difference?

A: The Intel Core Ultra 9 285 has an average benchmark score of 75488, compared to 6247 for the AMD Ryzen 3 3100U, a difference of roughly 69241 points.

Q: Does the AMD chip win any head-to-head test?

A: No. The recorded data shows the Intel Core Ultra 9 285 wins all 11 head-to-head benchmarks, with the AMD Ryzen 3 3100U recording zero wins.

Q: Which processor has a larger L3 cache?

A: The Intel Core Ultra 9 285 has 36 MB of shared L3 cache, while the AMD Ryzen 3 3100U has 4 MB of shared L3 cache.

Q: What memory types do the two processors support?

A: The AMD Ryzen 3 3100U supports DDR4 memory with 38.4 GB/s bandwidth, while the Intel Core Ultra 9 285 supports DDR5 memory with 102.4 GB/s bandwidth.

Q: Which processor supports ECC memory?

A: The Intel Core Ultra 9 285 supports ECC memory, while the AMD Ryzen 3 3100U does not.

The Verdict

The data indicates that the Intel Core Ultra 9 285 is the dominant processor in every measured category. Its 24 cores, 36 MB L3 cache, DDR5 memory support, and 5.60 GHz boost clock produce benchmark scores that are consistently 15 to 33 times higher than the AMD Ryzen 3 3100U across multi-threaded workloads, and 3.1 times higher in single-threaded tests. The Intel chip’s 95th percentile ranking versus the AMD chip’s 62nd percentile confirms its position as a high-end desktop part.

The AMD Ryzen 3 3100U, with 2 cores, a 15 watt TDP, and DDR4 support, is clearly aimed at low-power mobile systems. Its average score of 6247 places it near rivals like the AMD Ryzen Threadripper 1950X (6231, 0.3 percent delta) and the Intel Core i9-7940X (6147, 1.6 percent delta), indicating it performs in the range of older high-end desktop chips, but its 2-core design limits its ceiling. The Intel Core Ultra 9 285, by contrast, sits alongside AMD EPYC server parts, with its nearest rival being the AMD EPYC 8224P (75582, -0.1 percent delta).

For users seeking maximum multi-threaded throughput, data encryption, or floating point performance, the Core Ultra 9 285 is the only choice in this comparison. For ultra-low-power mobile use, the Ryzen 3 3100U offers a functional baseline, but the benchmark data shows it cannot compete with the Intel chip in any recorded workload. The verdict is clear: the Intel Core Ultra 9 285 wins on every measurable axis.