AMD Ryzen 3 3100U vs AMD Ryzen Threadripper 9970X Comparison

The Verdict

The recorded data draws an unusually clear line between these two AMD processors. The AMD Ryzen Threadripper 9970X wins all 11 head-to-head benchmark comparisons, with the smallest advantage appearing in single-threaded work. The Ryzen 3 3100U, a 2-core, 2-thread mobile part from the 3000 series, sits at the 62nd percentile among all CPUs. The Threadripper 9970X, a 32-core, 64-thread desktop processor from the 9000 series, sits at the 99th percentile.

The Ryzen 3 3100U belongs in low-power mobile systems where its 15 W TDP and integrated Radeon Vega 8 graphics remove the need for a separate GPU. Its average benchmark score of 6247 places it within 1.6% of the Intel Core i9-7940X and 0.3% of the AMD Ryzen Threadripper 1950X, which shows that its aggregate performance is competitive with much older high-core-count desktop parts in the database.

The Threadripper 9970X is for compute-heavy desktop workloads. Its average benchmark score of 279778 puts it 0.2% behind the Intel Xeon 6780E and 2.5% ahead of the AMD EPYC 9555P. It carries a launch MSRP of $2499. It also supports ECC memory, offers 80 PCIe Gen 5 lanes from the CPU, and has an unlocked multiplier. Users who need maximum multi-threaded throughput on a desktop socket should choose the Threadripper. Users who need a compact, low-power mobile processor with built-in graphics should choose the Ryzen 3 3100U. There is no overlap in use cases.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Threadripper 9970X has 32 cores and 64 threads. The AMD Ryzen 3 3100U has 2 cores and 2 threads.

Q: How large is the performance gap in multi-threaded work?

A: In the PassMark multi-thread test, the Threadripper 9970X scores 107399 while the Ryzen 3 3100U scores 3348. The delta is -96.9%, meaning the Threadripper outperforms the 3100U by a factor of roughly 32 times.

Q: Does either processor include integrated graphics?

A: The Ryzen 3 3100U includes Radeon Vega 8 integrated graphics. The Threadripper 9970X has no integrated graphics (listed as N/A), so it requires a discrete GPU.

Q: What memory types do the two processors support?

A: The Ryzen 3 3100U supports DDR4 memory in a dual-channel configuration with 38.4 GB/s of bandwidth. The Threadripper 9970X supports DDR5 memory in a quad-channel configuration with 204.8 GB/s of bandwidth.

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

A: The Threadripper 9970X scores 4530 in the PassMark single-thread test. The Ryzen 3 3100U scores 1592. The delta is -64.9%, which is the smallest relative gap of any benchmark in the comparison.

Q: Are these processors in the same market segment?

A: No. The Ryzen 3 3100U is a mobile processor, while the Threadripper 9970X is a desktop processor. They use different sockets (FP5 for the 3100U, sTR5 for the 9970X).

Architecture Differences

The two processors come from different generations and manufacturing technologies. The Ryzen 3 3100U uses the Picasso codename, part of the Zen+ architecture, fabricated on a 12 nm process at GlobalFoundries. The Threadripper 9970X uses the Shimada Peak codename with the Zen 5 architecture, fabricated on a 4 nm process at TSMC. The transistor counts reflect the scale difference: the 3100U contains 4,940 million transistors on a 210 mm² die, while the 9970X contains 33,260 million transistors across four 70.6 mm² dies.

Cache organization differs substantially. The Ryzen 3 3100U provides 96 KB of L1 cache per core, 512 KB of L2 per core, and 4 MB of shared L3 cache. The Threadripper 9970X provides 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of L3 cache. The Threadripper also supports ECC memory, which the 3100U does not.

The memory controllers are generationally distinct. The 3100U uses a dual-channel DDR4 controller with 38.4 GB/s of bandwidth. The 9970X uses a quad-channel DDR5 controller with 204.8 GB/s of bandwidth, a 5.3 times increase in theoretical memory throughput. PCIe support also differs: the 3100U is limited to Gen 3, while the 9970X provides Gen 5 with 80 lanes from the CPU only.

Specification Differences

The core and thread counts form the most obvious divide. The Ryzen 3 3100U offers 2 cores and 2 threads; the Threadripper 9970X offers 32 cores and 64 threads. Clock speeds follow the same pattern. The 3100U runs at a 1.90 GHz base clock and a 3.20 GHz boost clock. The 9970X runs at a 4.00 GHz base clock and a 5.40 GHz boost clock.

Thermal design power differs by a factor of more than 23. The 3100U has a 15 W TDP; the 9970X has a 350 W TDP. The sockets are incompatible: AMD Socket FP5 for the 3100U versus AMD Socket sTR5 for the 9970X.

The process node and foundry differ. The 3100U uses a 12 nm node at GlobalFoundries; the 9970X uses a 4 nm node at TSMC. The 9970X has an unlocked multiplier, while the 3100U does not. The 3100U features Radeon Vega 8 integrated graphics; the 9970X has no integrated graphics. The 3100U supports DDR4 memory, the 9970X supports DDR5. The 3100U lacks ECC support; the 9970X includes it. The 3100U uses a dual-channel memory bus; the 9970X uses a quad-channel bus. The 3100U has Gen 3 PCIe; the 9970X has Gen 5 with 80 lanes from the CPU.

Release dates are separated by roughly a year. The 3100U has a release date of 2026-05-31, while the 9970X has a release date of 2025-07-29. Both are listed as Active in production status. The 3100U is a mobile part; the 9970X is a desktop part. The 9970X has a launch MSRP of $2499; the 3100U has no launch MSRP recorded.

Head-to-Head Benchmarks

The Threadripper 9970X dominates every recorded benchmark, but the magnitude of the win varies significantly by workload. The largest relative advantage appears in extended instructions, where the 9970X scores 142342 against the 3100U's 2116, a delta of -98.5%. Floating-point math shows a similar pattern: 309719 versus 5854, a -98.1% delta. Integer math follows at 465378 versus 8873, also -98.1%.

Data compression shows the 9970X scoring 1757998 against the 3100U's 38455, a -97.8% delta. Data encryption shows 86765 versus 1972, a -97.7% delta. Random string sorting shows 191445 versus 4666, a -97.6% delta. The find prime numbers test shows 615 versus 18, a -97.1% delta. The physics test shows 6835 versus 232, a -96.6% delta, which is the smallest multi-threaded gap in the set. The multithread test shows 107399 versus 3348, a -96.9% delta.

The single-thread tests show the closest competition. The 9970X scores 4530 in both passmark_single_thread and passmark_singlethread; the 3100U scores 1592 in both. The delta is -64.9%. This means that in purely single-core work, the Threadripper is still about 2.8 times faster, but the gap narrows considerably compared to multi-threaded workloads. In the multithread test, the Threadripper's advantage is roughly 32 times, which aligns closely with the 16-fold difference in core count and the higher clock speeds.

The benchmark data also contextualizes the 3100U's position among its nearest rivals. Its average score of 6247 sits 0.3% above the AMD Ryzen Threadripper 1950X and 1% above the AMD EPYC 7272. It sits 1.6% below the Intel Core i9-7940X and 1.6% below the Intel Core i9-10920X. These deltas place the 3100U in a narrow performance band relative to those older high-core parts, despite having only 2 cores. The Threadripper 9970X, by contrast, sits 0.2% below the Intel Xeon 6780E, 2% below the AMD EPYC 9565, 2.2% below the Intel Xeon 696X, and 2.5% below the AMD EPYC 9555P. The data confirms the 9970X is tightly clustered with current-generation server and workstation parts, while the 3100U clusters with older enthusiast desktop silicon.

The overall benchmark scores reinforce the gap. The 3100U averages 6247 across all recorded tests; the 9970X averages 279778. The 9970X's average is approximately 44.8 times higher. The percentile rankings reflect this: the 3100U sits at the 62nd percentile of all CPUs, while the 9970X sits at the 99th percentile. In every measured category, from encryption to prime number finding, the Threadripper 9970X delivers a decisive performance advantage, with the single-thread tests representing the only area where the older mobile chip remains within striking distance.