AMD Ryzen 5 3500U vs AMD Ryzen Threadripper 3970X Comparison

The benchmark data presents a stark contrast between a mobile efficiency part and a desktop flagship. The AMD Ryzen Threadripper 3970X dominates every shared benchmark, but the AMD Ryzen 5 3500U serves a fundamentally different purpose. The data shows a 4-0 sweep for the Threadripper, with the largest deltas occurring in multi-threaded workloads, yet the 3500U's existence is justified by its market segment, not its raw performance.

Head-to-Head Benchmarks

The most decisive victory for the AMD Ryzen Threadripper 3970X comes in Cinebench R15 multi-core, where it scores 5405 against the Ryzen 5 3500U's 650. This represents a delta of -88%, meaning the Threadripper is roughly 8.3 times faster in this heavily threaded render test. The 32-core, 64-thread processor leverages its massive parallel throughput to an extreme degree, while the 4-core, 8-thread mobile chip is simply outclassed in this arena.

Single-core performance tells a similar story, though the margin narrows. In Cinebench R15 single-core, the Threadripper scores 762 versus the 3500U's 143, a delta of -81.2%. The Geekbench single-core test shows a smaller gap: the Threadripper's 1653 beats the 3500U's 870 by -47.4%. This indicates that while the Threadripper's Zen 2 architecture at a 4.50 GHz boost clock provides a substantial per-thread advantage, the 3500U's Zen+ design is not entirely embarrassed in lightly threaded tasks.

The Geekbench multi-core result reinforces the multi-threaded theme. The Threadripper's 20112 dwarfs the 3500U's 2508, a -87.5% delta. Across all four head-to-head tests, the Threadripper wins decisively, but the single-core deltas are significantly smaller than the multi-core ones. This suggests that the 3500U's 3.70 GHz boost clock is competitive in absolute terms, but the Threadripper's higher 4.50 GHz boost and superior IPC from Zen 2 still win out. The data shows the Threadripper is not merely more capable; it is in a different performance class entirely.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Ryzen 5 3500U has an average benchmark score of 11176, while the Ryzen Threadripper 3970X has an average of 10841. This puts the 3500U slightly ahead in this aggregate metric, despite losing all head-to-head tests.

Q: How does the Threadripper 3970X compare to its nearest rivals?

A: The Threadripper's average score of 10841 is 2.1% lower than the Intel Core i7-6700's 11074 and 2.5% lower than the AMD EPYC 9224's 11118. It is 2.7% higher than the Intel Core i7-4790's 10556 and 2.8% higher than the AMD EPYC 7D12's 10547.

Q: What is the performance gap in the Geekbench multi-core test?

A: The Threadripper scores 20112, which is 87.5% higher than the 3500U's 2508. This is one of the largest deltas in the head-to-head comparison, reflecting the massive core count difference.

Q: Does the Ryzen 5 3500U have any benchmark wins over the Threadripper?

A: No. In the four shared tests (Cinebench R15 multi-core and single-core, Geekbench multi-core and single-core), the Threadripper wins all of them. The 3500U has zero wins in the head-to-head data.

Q: What is the launch MSRP of the Threadripper 3970X?

A: The launch MSRP for the AMD Ryzen Threadripper 3970X is $1999. The Ryzen 5 3500U has no listed launch MSRP in the data.

Q: How does the 3500U's single-thread performance compare to its multi-thread performance?

A: The 3500U scores 1924 in both Passmark single-thread and Passmark singlethread tests. Its Passmark multithread score is 6858, which is roughly 3.6 times higher, indicating that its 8 threads provide meaningful scaling in multithreaded workloads.

Architecture Differences

The two processors are built on fundamentally different architectures. The Ryzen 5 3500U uses the Zen+ architecture on a 12 nm process node, manufactured by GlobalFoundries. The Ryzen Threadripper 3970X uses the newer Zen 2 architecture on a 7 nm process node, manufactured by TSMC. This process advantage is a key differentiator, allowing the Threadripper to pack more transistors and operate at higher clocks.

The transistor count reflects this difference. The 3500U has 4,940 million transistors on a 210 mm² die, while the Threadripper has 15,200 million transistors spread across 4x 74 mm² dies. The Threadripper's chiplet design is a Zen 2 hallmark, enabling higher yields and more cores. The 3500U's monolithic die is typical for a mobile part, prioritizing power efficiency over scalability.

Cache configurations also differ significantly. The 3500U has 96 KB of L1 cache per core and 512 KB of L2 per core, with 4 MB of shared L3 cache. The Threadripper has 64 KB of L1 per core and 512 KB of L2 per core, but a massive 128 MB of L3 cache. This 32x difference in L3 cache is a major factor in the Threadripper's ability to feed its 32 cores with data, especially in multi-threaded workloads that benefit from large shared pools of fast memory.

The Threadripper also supports PCIe Gen 4, while the 3500U is limited to PCIe Gen 3. This allows the desktop part to use faster storage and graphics interconnects. The Threadripper has a higher base clock of 3.70 GHz and boost clock of 4.50 GHz, versus the 3500U's 2.10 GHz base and 3.70 GHz boost. The 3500U includes integrated Radeon Vega 8 graphics, while the Threadripper has no integrated graphics, requiring a discrete GPU.

Specification Differences

The most obvious specification difference is core count: the Threadripper has 32 cores and 64 threads, while the 3500U has 4 cores and 8 threads. This 8x core advantage is the primary driver of the multi-threaded benchmark results. The Threadripper's TDP of 280 watts is drastically higher than the 3500U's 15 watts, reflecting the desktop part's power-hungry nature versus the mobile chip's efficiency focus.

The sockets are incompatible: the 3500U uses AMD Socket FP5, while the Threadripper uses AMD Socket TRX4. The memory bus also differs, with the 3500U supporting dual-channel DDR4 and the Threadripper supporting quad-channel DDR4. The Threadripper has a listed memory bandwidth of 102.4 GB/s, while the 3500U has no listed bandwidth figure. The Threadripper's multiplier is unlocked, allowing overclocking, while the 3500U's multiplier is locked.

The release dates differ by roughly ten months, with the 3500U launching on 2019-01-05 and the Threadripper on 2019-11-24. The Threadripper has a launch MSRP of $1999, while the 3500U has no listed launch MSRP. The market segments are distinct: Mobile for the 3500U and Desktop for the Threadripper. The production status for both is Active.

The Verdict

The data is unambiguous: the AMD Ryzen Threadripper 3970X is vastly superior in every measured benchmark. For any workload that can utilize multiple cores, the Threadripper is the clear choice. Its 5405 Cinebench R15 multi-core score versus the 3500U's 650 is a landslide victory. Even in single-core tasks, where the gap is smallest, the Threadripper's 762 versus 143 in Cinebench R15 single-core shows a 81.2% advantage. Anyone needing maximum compute performance should pick the Threadripper, provided they can accommodate its 280-watt TDP and desktop platform.

The Ryzen 5 3500U, however, is not without merit. Its market segment is Mobile, and its 15-watt TDP makes it suitable for laptops where power consumption and heat are critical. Its average benchmark score of 11176 is actually higher than the Threadripper's 10841, a quirk driven by the different benchmark suites used for each processor. The 3500U's integrated Radeon Vega 8 graphics eliminate the need for a discrete GPU in basic systems. For users who prioritize portability and battery life over raw performance, the 3500U is the appropriate choice.

The verdict from the data is that these processors are not direct competitors. The Threadripper wins every head-to-head test, but the 3500U's design goals are orthogonal to raw performance. The Threadripper is for workstations and heavy multi-threaded workloads, while the 3500U is for thin-and-light laptops. Choosing between them depends entirely on the use case, not on benchmark scores alone.

Where Each One Wins

The AMD Ryzen Threadripper 3970X wins every category where performance is the sole criterion. In multi-threaded rendering, the Cinebench R15 multi-core score of 5405 versus 650 makes it the definitive choice. In general multi-core computing, the Geekbench multi-core score of 20112 versus 2508 is equally decisive. Even in single-threaded tasks, the Threadripper wins, with a Cinebench R15 single-core score of 762 versus 143. The Threadripper also wins in contexts that require high memory bandwidth, given its quad-channel support and 102.4 GB/s bandwidth, and its PCIe Gen 4 support for modern peripherals.

The AMD Ryzen 5 3500U wins in scenarios where power efficiency is paramount. Its 15-watt TDP is a fraction of the Threadripper's 280 watts, making it the only viable option for battery-powered devices. The integrated Radeon Vega 8 graphics provide a complete package without a discrete GPU. While it loses all head-to-head benchmarks, its higher average benchmark score of 11176 versus 10841 suggests that in its own benchmark suite, it performs competitively relative to other processors in its class. The 3500U also wins on platform cost and complexity, as it uses a mainstream mobile socket and dual-channel memory, which are less expensive to implement than the TRX4 platform.

The data supports a clear split: the Threadripper for performance-critical desktop workloads, and the 3500U for mobile computing where efficiency and integration matter more than raw speed. The 3500U's 66th percentile ranking versus all CPUs matches the Threadripper's, indicating that both are solid mid-pack performers in their respective contexts, despite their divergent architectures and specifications.