AMD Ryzen 3 3100U vs Intel Core i5-13400E Comparison

Architecture Differences

The AMD Ryzen 3 3100U and Intel Core i5-13400E represent two fundamentally different design philosophies. The Ryzen 3 3100U is built on the Zen+ (Picasso) architecture using a 12 nm process at GlobalFoundries, while the Core i5-13400E uses Intel's Raptor Lake architecture on a 10 nm process at Intel's own foundries. This process gap is significant, as the smaller Intel node allows for substantially higher transistor density and efficiency in the same physical footprint.

The core configurations could not be more different. The Ryzen 3 3100U is a dual-core processor with 2 threads, whereas the Core i5-13400E offers 10 cores and 16 threads. This 5x core count difference and 8x thread count difference directly explains the massive performance gulf in multithreaded workloads. The Ryzen 3 3100U relies on a simple symmetric design, while the Core i5-13400E adopts Intel's hybrid architecture with performance and efficiency cores, though the database does not break down the exact core mix.

Clock speeds also favor Intel substantially. The Ryzen 3 3100U has a base clock of 1.90 GHz and a boost clock of 3.20 GHz. The Core i5-13400E operates at a base clock of 2.40 GHz and boosts to 4.60 GHz. The Intel part enjoys both a higher starting frequency and a much higher ceiling, which translates into better single-threaded responsiveness.

Cache hierarchies differ in both capacity and organization. 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 Core i5-13400E offers 80 KB of L1 per core, but a much larger 1.25 MB of L2 per core, and 20 MB of shared L3 cache. While the per-core L1 is smaller on the Intel part, the 5x larger L3 pool is a substantial advantage for workloads that benefit from larger working sets.

Memory support diverges as well. The Ryzen 3 3100U supports only DDR4 memory, while the Core i5-13400E supports both DDR4 and DDR5. Both use dual-channel memory buses, and the Ryzen 3 3100U has a recorded memory bandwidth of 38.4 GB/s; the Intel part's bandwidth is not recorded in the database. The Intel processor also supports ECC memory, while the AMD part does not.

PCIe connectivity is another differentiator. The Ryzen 3 3100U uses PCIe Gen 3, while the Core i5-13400E supports PCIe Gen 5 with 16 lanes available from the CPU. This gives the Intel platform substantially more headroom for high-bandwidth peripherals and storage.

The integrated graphics also differ. The Ryzen 3 3100U includes Radeon Vega 8 graphics, while the Core i5-13400E ships with UHD Graphics 730. Both are integrated solutions, but the database does not include comparative graphics benchmarks for these two parts.

The Ryzen 3 3100U is a mobile processor on AMD Socket FP5 with a 15 W TDP, while the Core i5-13400E is a desktop part on Intel Socket 1700 with a 65 W TDP. The power envelope difference is substantial, reflecting the intended usage scenarios: ultraportable laptops versus desktop systems.

Where Each One Wins

The use-case split is stark. The Ryzen 3 3100U is designed for low-power mobile computing. Its 15 W TDP makes it suitable for thin-and-light laptops where battery life and thermal management take priority over raw performance. The integrated Radeon Vega 8 graphics provide a reasonable baseline for everyday tasks and light media consumption without requiring a discrete GPU.

The Core i5-13400E is a desktop processor aimed at productivity and content creation workloads. With 10 cores and 16 threads, it excels in multithreaded applications such as video rendering, software compilation, and scientific computing. The 65 W TDP allows it to sustain higher clocks under load, and the PCIe Gen 5 support makes it a fit for systems with modern SSDs and GPUs.

Benchmark data reinforces this split. The Ryzen 3 3100U scores 8,873 in PassMark integer math and 5,854 in floating point math. The Core i5-13400E does not have comparable PassMark entries in the database, but its Cinebench results are decisive. In Cinebench R23 multicore, the Core i5-13400E scores 22,950, while the Ryzen 3 3100U has no Cinebench entry to compare directly. The recorded data shows the Intel part dominating in threaded workloads.

For single-threaded tasks, the Core i5-13400E's Cinebench R23 single-core score of 3,240 and R20 single-core score of 1,360 indicate strong per-core performance. The Ryzen 3 3100U's PassMark single-thread score of 1,592 is its only comparable single-threaded data point, and while the test suites differ, the clock speed advantage of the Intel part suggests it leads in lightly threaded scenarios.

The AMD part does have a niche: its low power draw and mobile form factor make it appropriate for battery-powered devices where the Intel desktop part cannot operate. The 15 W TDP versus 65 W TDP is a clear differentiator. The Ryzen 3 3100U also carries a smaller die at 210 mm² compared to the Intel's 215 mm², though both are physically similar in size.

Head-to-Head Benchmarks

The database does not include direct head-to-head benchmark entries between these two processors, so the comparison relies on their respective benchmark suites. The divergence in available tests is itself informative: the Ryzen 3 3100U has PassMark data across multiple workloads, while the Core i5-13400E has Cinebench scores.

The largest recorded advantage for the Core i5-13400E comes from its multithreaded Cinebench results. In Cinebench R23 multicore, the Intel part scores 22,950. The Ryzen 3 3100U has no Cinebench R23 entry, but its PassMark multithread score of 3,348 provides a proxy for threaded performance. Comparing across suites, the Intel part's multicore capability is on a different tier entirely, consistent with its 10-core, 16-thread configuration versus the AMD's 2-core, 2-thread design.

In single-threaded performance, the Core i5-13400E scores 3,240 in Cinebench R23 single-core and 326 in Cinebench R15 single-core. The Ryzen 3 3100U scores 1,592 in PassMark single-thread. While these are different benchmarks, the Intel part's higher boost clock of 4.60 GHz versus 3.20 GHz strongly suggests it wins in single-threaded workloads.

The Ryzen 3 3100U shows some relative strengths in specific PassMark sub-tests. Its data compression score of 38,455 is notable, though this cannot be compared directly to any Intel score in the database. The AMD part also scores 4,666 in random string sorting and 2,116 in extended instructions. These numbers indicate that the dual-core Picasso chip handles certain algorithmic tasks better than its modest core count might suggest, but the lack of comparable Intel data limits the strength of this conclusion.

The average benchmark scores place these processors close together in the database's overall ranking. The Ryzen 3 3100U has an average benchmark score of 6,247, while the Core i5-13400E averages 6,638. The Intel part leads by roughly 6.3%. Both processors sit at the 62nd percentile among all CPUs, indicating they occupy similar positions in the overall performance distribution despite their architectural differences.

Nearest rival data provides additional context. The Ryzen 3 3100U sits within 1.6% of processors like the AMD Ryzen Threadripper 1950X (0.3% ahead), AMD EPYC 7272 (1% ahead), Intel Core i9-10920X (1.6% behind), and Intel Core i9-7940X (1.6% ahead). The Core i5-13400E is within 0.5% of the AMD Ryzen Threadripper 2950X (0.1% behind), Intel Core i9-9940X (0.3% behind), Intel Core i9-12900E (0.4% ahead), and Intel Pentium Gold G6405 (0.5% ahead). These tight margins suggest that in the database's overall scoring, both chips land in a crowded performance band.

Specification Differences

The following fields differ between the two processors:

• Cores: AMD Ryzen 3 3100U has 2, Intel Core i5-13400E has 10
• Threads: AMD Ryzen 3 3100U has 2, Intel Core i5-13400E has 16
• Base clock: 1.90 GHz versus 2.40 GHz
• Boost clock: 3.20 GHz versus 4.60 GHz
• TDP: 15 W versus 65 W
• Socket: AMD Socket FP5 versus Intel Socket 1700
• Codename: Picasso versus Raptor Lake-S
• Generation: Ryzen 3 (Zen+ Picasso) versus Core i5 (Raptor Lake)
• Process node: 12 nm versus 10 nm
• Foundry: GlobalFoundries versus Intel
• Transistors: 4,940 million versus not recorded
• Die size: 210 mm² versus 215 mm²
• L1 cache per core: 96 KB versus 80 KB
• L2 cache per core: 512 KB versus 1.25 MB
• L3 cache shared: 4 MB versus 20 MB
• Memory support: DDR4 only versus DDR4 and DDR5
• Memory bandwidth: 38.4 GB/s versus not recorded
• ECC memory support: No versus Yes
• PCIe: Gen 3 versus Gen 5, 16 lanes (CPU only)
• Integrated graphics: Radeon Vega 8 versus UHD Graphics 730
• Market segment: Mobile versus Desktop
• Part number: YM3100C4T2OFG versus SRMG5
• Release date: 2026-05-31 versus 2023-01-03

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i5-13400E has 10 cores and 16 threads, while the AMD Ryzen 3 3100U has 2 cores and 2 threads.

Q: How do their clock speeds compare?

A: The AMD Ryzen 3 3100U has a base clock of 1.90 GHz and a boost of 3.20 GHz. The Intel Core i5-13400E has a base clock of 2.40 GHz and a boost of 4.60 GHz.

Q: Which processor supports ECC memory?

A: The Intel Core i5-13400E supports ECC memory. The AMD Ryzen 3 3100U does not.

Q: What memory types does each processor support?

A: The AMD Ryzen 3 3100U supports DDR4 memory only, with a recorded bandwidth of 38.4 GB/s. The Intel Core i5-13400E supports both DDR4 and DDR5 memory.

Q: What are their average benchmark scores?

A: The AMD Ryzen 3 3100U has an average benchmark score of 6,247, while the Intel Core i5-13400E scores 6,638. Both sit at the 62nd percentile among all CPUs.

Q: What market segments are these processors designed for?

A: The AMD Ryzen 3 3100U is a mobile processor with a 15 W TDP, while the Intel Core i5-13400E is a desktop processor with a 65 W TDP.