AMD Ryzen 3 3100U vs Intel Core i5-14400T Comparison

The AMD Ryzen 3 3100U and Intel Core i5-14400T occupy different corners of the processor market, one a low-power mobile part and the other a desktop chip with a much larger core count. The recorded benchmark data shows a decisive performance gap across every measured workload, with the Intel processor winning all 11 head-to-head comparisons. This analysis breaks down the magnitude of those differences, the architectural reasons behind them, and what the numbers mean for potential use cases.

Head-to-Head Benchmarks

The Intel Core i5-14400T dominates every single benchmark recorded in the head-to-head comparison. The largest margin appears in floating point math, where the Intel chip scores 49139 against the AMD part's 5854, a delta of -88.1 percent. This means the AMD processor delivers only about 12 percent of the Intel chip's floating point throughput. Integer math shows a similar pattern: Intel scores 65667 versus AMD's 8873, a -86.5 percent delta. These two results indicate a fundamental difference in raw compute capability, not just a minor clock speed advantage.

Data compression benchmarks reinforce the gap. The Intel Core i5-14400T scores 235636 in PassMark data compression, while the Ryzen 3 3100U manages 38455, a -83.7 percent difference. Data encryption follows at -85.1 percent, with Intel at 13244 and AMD at 1972. Extended instruction workloads show Intel at 14562 versus AMD's 2116, a -85.5 percent delta. The consistency of these margins across different task types suggests the Intel processor's advantage is structural, tied to core count and memory subsystem rather than any single optimization.

The multithreaded score is particularly telling. Intel's 20223 dwarfs AMD's 3348, a -83.4 percent difference. The Ryzen 3 3100U has 2 cores and 2 threads, while the Core i5-14400T has 10 cores and 16 threads, so the parallel workload gap aligns with the hardware configuration. Physics simulation shows Intel at 1244 versus AMD's 232, a -81.4 percent delta. Random string sorting delivers Intel 25181 against AMD 4666, a -81.5 percent difference. Prime number finding, often a test of integer throughput and cache behavior, shows Intel at 73 versus AMD's 18, a -75.3 percent delta.

The closest relative margin is in single-threaded performance. Intel scores 3512 in PassMark single-thread, AMD scores 1592, a -54.7 percent delta. This is still a substantial lead, but it is smaller than the multithreaded gaps, indicating that per-core efficiency differences are less extreme than the raw core count disparity. The single-thread result also reflects the Intel chip's 4.50 GHz boost clock against the AMD part's 3.20 GHz boost clock, a difference that matters in lightly threaded applications.

Across all 11 head-to-head tests, the Intel Core i5-14400T wins every one. The AMD Ryzen 3 3100U records zero wins. The average benchmark score tells the same story: the Intel processor averages 27166 across its benchmark suite, while the AMD part averages 6247. That places the Intel chip in the 79th percentile of all CPUs in the database, compared to the 62nd percentile for the Ryzen 3 3100U. The Intel chip's nearest rivals by average score include the Intel Core i9-9900K at 27097 (a 0.3 percent difference) and the AMD Ryzen 7 5700G at 27051 (a 0.4 percent difference), confirming that the 14400T sits in capable company. The Ryzen 3 3100U's nearest rivals include the AMD Ryzen Threadripper 1950X at 6231 (a 0.3 percent difference) and the Intel Core i9-7940X at 6147 (a 1.6 percent difference), placing it far down the performance ladder.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core i5-14400T has an average benchmark score of 27166, while the AMD Ryzen 3 3100U has an average of 6247. The Intel chip also sits in the 79th percentile of all CPUs, compared to the 62nd percentile for the AMD part.

Q: How much faster is the Intel Core i5-14400T in single-threaded performance?

A: In PassMark single-thread testing, the Intel processor scores 3512 versus the AMD processor's 1592, a -54.7 percent delta. This is the smallest margin between the two chips across all head-to-head tests.

Q: What is the biggest performance gap between the two processors?

A: The largest gap is in floating point math, where the Intel Core i5-14400T scores 49139 and the AMD Ryzen 3 3100U scores 5854, a -88.1 percent delta. Integer math is close behind at -86.5 percent.

Q: Does the AMD Ryzen 3 3100U win any head-to-head benchmarks?

A: No. The head-to-head data records 11 tests, and the Intel Core i5-14400T wins all 11. The AMD processor has 0 wins.

Q: How do the core counts compare between the two chips?

A: The AMD Ryzen 3 3100U has 2 cores and 2 threads. The Intel Core i5-14400T has 10 cores and 16 threads, which explains the large multithreaded benchmark gap of -83.4 percent.

Q: What memory types does each processor support?

A: The AMD Ryzen 3 3100U supports DDR4 only, with dual-channel memory. The Intel Core i5-14400T supports both DDR4 and DDR5, also dual-channel.

The Verdict

The data points to a clear hierarchy. The Intel Core i5-14400T delivers more than four times the average benchmark score of the AMD Ryzen 3 3100U, and it wins every recorded workload comparison. The multithreaded results, physics simulation, and math-heavy tests all show margins of 80 percent or more in Intel's favor. The single-thread margin is smaller at -54.7 percent, but still decisive. The AMD Ryzen 3 3100U's 62nd percentile ranking places it near processors like the AMD Ryzen Threadripper 1950X and Intel Core i9-7940X, both older high-end parts. The Intel chip's 79th percentile ranking places it alongside the Intel Core i9-9900K and AMD Ryzen 7 5700G, which are much more recent designs.

The AMD part is a mobile processor with a 15 watt TDP, while the Intel chip is a desktop processor with a 35 watt TDP. Those power envelopes explain part of the performance difference, but not all of it. The Intel chip also has five times the cores, four times the threads, and a larger shared L3 cache. The Ryzen 3 3100U is built on a 12 nm process from GlobalFoundries, while the Intel Core i5-14400T uses a 10 nm process from Intel. The combination of newer process technology, more cores, and higher boost clocks gives the Intel processor an insurmountable lead in every measurable category.

For workloads that depend on parallel throughput, such as video encoding, compilation, or scientific computation, the Intel Core i5-14400T is the only viable choice between these two based on the recorded scores. For single-threaded responsiveness, the Intel chip still leads by a wide margin. The AMD Ryzen 3 3100U remains an active product in the database, but its benchmark profile places it in a completely different performance class.

Specification Differences

The two processors differ in nearly every core specification. The AMD Ryzen 3 3100U has 2 cores and 2 threads, while the Intel Core i5-14400T has 10 cores and 16 threads. Base clocks are 1.90 GHz for the AMD part and 1.50 GHz for the Intel part, but boost clocks reverse the order: 3.20 GHz for AMD and 4.50 GHz for Intel. TDP differs substantially, with the AMD chip rated at 15 watts and the Intel chip at 35 watts. Sockets are incompatible: AMD uses Socket FP5, Intel uses Socket 1700.

Cache configurations diverge sharply. The AMD Ryzen 3 3100U has 96 KB of L1 cache per core, 512 KB of L2 per core, and 4 MB of shared L3 cache. The Intel Core i5-14400T has 80 KB of L1 per core, 1.25 MB of L2 per core, and 20 MB of shared L3 cache. The Intel chip's L3 cache is five times larger. Memory support differs as well: AMD supports DDR4 only, Intel supports both DDR4 and DDR5. The AMD part has a listed memory bandwidth of 38.4 GB/s, while no bandwidth figure is recorded for the Intel chip. ECC memory support is absent on the AMD part and present on the Intel part.

PCIe generation differs, with AMD listed as Gen 3 and Intel listed as Gen 5 with 16 lanes from the CPU. Integrated graphics are different models: AMD uses Radeon Vega 8, Intel uses UHD Graphics 730. The market segment also differs, with the AMD chip classified as Mobile and the Intel chip as Desktop. The Intel Core i5-14400T has a launch MSRP of $221. No launch MSRP is recorded for the AMD Ryzen 3 3100U.

Architecture Differences

The AMD Ryzen 3 3100U is part of the 3000 series, codenamed Picasso, and belongs to the Ryzen 3 generation built on Zen+ architecture. It uses a 12 nm process from GlobalFoundries, with 4,940 million transistors on a 210 mm² die. The Intel Core i5-14400T is part of the Core 14th Gen series, codenamed Raptor Lake-R, and belongs to the Core i5 generation built on Raptor Lake architecture. It uses a 10 nm process from Intel, with a 215 mm² die size and no transistor count recorded.

The Zen+ architecture in the AMD part is an older design, originally developed for low-power mobile systems. The Raptor Lake Refresh architecture in the Intel part is a newer desktop design with a hybrid core arrangement, though the data does not specify performance versus efficiency core types. The Intel processor's larger L2 cache per core, 1.25 MB versus 512 KB, and its much larger shared L3 cache, 20 MB versus 4 MB, contribute to its benchmark advantage. The AMD part's 12 nm process node is a full generation behind Intel's 10 nm node, and the transistor density difference is reflected in the die sizes: 210 mm² for AMD versus 215 mm² for Intel, despite Intel packing 10 cores into that space versus AMD's 2 cores.

The AMD part uses an older PCIe Gen 3 interface, while the Intel chip uses PCIe Gen 5 with 16 CPU lanes. Memory architecture also differs, with Intel supporting both DDR4 and DDR5 while AMD is limited to DDR4. The Intel chip's ECC memory support is absent on the AMD part, a meaningful feature for certain workstation applications. The integrated graphics differ in brand and capability, though no benchmark scores for graphics are recorded in the data. The AMD part is a mobile processor with a 15 watt TDP, reflecting its Picasso design target, while the Intel part is a desktop processor with a 35 watt TDP, reflecting a low-power variant of a mainstream desktop architecture.