AMD Ryzen 3 3100U vs Intel Core Ultra 5 245 Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a decisive advantage for the Intel Core Ultra 5 245 across every measurable workload. The AMD Ryzen 3 3100U wins zero head-to-head comparisons, while the Intel part wins all 11 recorded tests. The largest margin appears in passmark_find_prime_numbers, where the Intel processor scores 365 against the AMD’s 18, a delta of -95.1%. Similarly, passmark_floating_point_math shows the Intel part at 120,548 versus 5,854, also a -95.1% difference. These two tests measure raw computational throughput, and the gap is enormous.

The smallest relative gap is in passmark_single_thread, where the Intel Core Ultra 5 245 scores 4,394 versus the Ryzen 3 3100U’s 1,592, a delta of -63.8%. Even in single-threaded performance, where the older AMD architecture might be expected to compete more closely, the Intel part is roughly 2.75 times faster. The same score appears in the passmark_singlethread test, confirming consistency in the measurement.

In multi-threaded workloads, the Intel part delivers 38,706 in passmark_multithread against the AMD’s 3,348, a -91.4% delta. This aligns with the core count disparity: the Intel processor has 14 cores and 14 threads, while the AMD has 2 cores and 2 threads. The data compression test shows the Intel part at 400,942 versus 38,455, a -90.4% difference. Data encryption favors Intel at 30,236 versus 1,972, a -93.5% gap. Extended instructions follow the same pattern: 33,304 for Intel, 2,116 for AMD, a -93.6% delta.

The physics test, often indicative of gaming or simulation performance, shows the Intel part at 2,569 versus 232 for AMD, a -91% difference. Random string sorting, a memory and cache sensitive workload, places Intel at 49,140 and AMD at 4,666, a -90.5% gap. Integer math shows Intel at 91,187 versus 8,873, a -90.3% difference. Across all categories, the Intel Core Ultra 5 245 outperforms the AMD Ryzen 3 3100U by margins ranging from roughly 64% to over 95%. The database’s average benchmark score confirms this: the Intel part averages 48,995, while the AMD averages 6,247. The Intel processor sits in the 90th percentile of all CPUs, while the AMD sits in the 62nd percentile.

Architecture Differences

The two processors come from fundamentally different design eras. The AMD Ryzen 3 3100U uses the Picasso codename, built on the Zen+ architecture, and is manufactured on a 12 nm process at GlobalFoundries. The Intel Core Ultra 5 245 uses the Arrow Lake-S architecture, is built on a 3 nm process at TSMC, and belongs to the Core Ultra Series 2 generation. The transistor counts differ dramatically: the AMD chip packs 4,940 million transistors on a 210 mm² die, while the Intel chip contains 17,800 million transistors on a 243 mm² die. The Intel die is only slightly larger physically, but holds more than three and a half times the transistors.

Core and thread configuration separates the two further. AMD provides 2 cores and 2 threads, with a base clock of 1.90 GHz and a boost clock of 3.20 GHz. Intel provides 14 cores and 14 threads, with a base clock of 3.50 GHz and a boost clock of 5.10 GHz. The Intel part does not use simultaneous multithreading; each core handles one thread. The AMD part also lacks hyperthreading, so thread count equals core count for both.

Cache hierarchies reflect the performance gap. The AMD processor has 96 KB of L1 cache per core, 512 KB of L2 per core, and 4 MB of shared L3 cache. The Intel processor has 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3 cache. The Intel L3 cache is six times larger, and its per-core L2 is nearly six times larger. Memory support diverges as well: AMD uses DDR4 with dual-channel access and a memory bandwidth of 38.4 GB/s, while Intel uses DDR5 with dual-channel access and a memory bandwidth of 102.4 GB/s. Intel also supports ECC memory, a feature absent from the AMD part.

The integrated graphics differ in name and capability. AMD includes Radeon Vega 8 graphics, while Intel includes Arc Xe-LPG Graphics 64EU. PCIe support also separates them: AMD provides Gen 3, while Intel provides Gen 5 with 20 lanes from the CPU. The AMD part uses AMD Socket FP5, a mobile socket, while the Intel part uses Intel Socket 1851, a desktop socket. The AMD processor is marked for the mobile segment, while the Intel processor is marked for the desktop segment. Both are currently active in production. The Intel part carries a launch MSRP of $270; the AMD part has no recorded launch MSRP.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 5 245 has an average benchmark score of 48,995, while the AMD Ryzen 3 3100U has an average score of 6,247. The Intel part ranks in the 90th percentile of all CPUs, versus the 62nd percentile for AMD.

Q: How large is the single-thread performance gap?

A: In passmark_single_thread, the Intel Core Ultra 5 245 scores 4,394, and the AMD Ryzen 3 3100U scores 1,592. The delta is -63.8%, meaning Intel is approximately 2.75 times faster in single-threaded work.

Q: What are the core and thread counts for each processor?

A: The AMD Ryzen 3 3100U has 2 cores and 2 threads. The Intel Core Ultra 5 245 has 14 cores and 14 threads. Neither processor uses simultaneous multithreading.

Q: What memory types do the two processors support?

A: The AMD Ryzen 3 3100U supports DDR4 memory with dual-channel access and a bandwidth of 38.4 GB/s. The Intel Core Ultra 5 245 supports DDR5 memory with dual-channel access and a bandwidth of 102.4 GB/s. Intel also supports ECC memory; AMD does not.

Q: Which processor has a larger L3 cache?

A: The Intel Core Ultra 5 245 has 24 MB of shared L3 cache. The AMD Ryzen 3 3100U has 4 MB of shared L3 cache. Intel’s L3 cache is six times larger.

Q: What manufacturing processes are used?

A: The AMD Ryzen 3 3100U uses a 12 nm process at GlobalFoundries. The Intel Core Ultra 5 245 uses a 3 nm process at TSMC. Intel’s transistor count is 17,800 million versus AMD’s 4,940 million.

The Verdict

The data points to a clear conclusion for users who need raw throughput. The Intel Core Ultra 5 245 dominates every recorded benchmark, with margins exceeding 90% in most tests. Its 14 cores, 14 threads, 5.10 GHz boost clock, and 24 MB L3 cache give it a structural advantage that the AMD Ryzen 3 3100U cannot offset. The Intel part also benefits from a newer 3 nm process, DDR5 memory support, and a much higher memory bandwidth of 102.4 GB/s.

The AMD Ryzen 3 3100U, by contrast, offers a power-efficient mobile design with a 15 W TDP, a 12 nm process, and DDR4 support. Its 2 cores and 2 threads limit multi-threaded performance, and its 3.20 GHz boost clock trails Intel’s 5.10 GHz. The AMD part’s 62nd percentile ranking places it below the Intel part’s 90th percentile in the database’s overall CPU distribution.

For desktop workloads where compute density matters, the Intel Core Ultra 5 245 is the only rational choice based on this data. For mobile devices where the AMD part is specified, the comparison is less direct because the Intel part is a desktop component on a different socket. Users constrained to the AMD mobile platform will find the 3100U adequate for light tasks, but the benchmark results indicate severe limitations in multi-threaded and memory-intensive applications.

Specification Differences

The two processors differ across nearly every recorded specification field.

• Cores: AMD has 2, Intel has 14.
• Threads: AMD has 2, Intel has 14.
• Base clock: AMD runs at 1.90 GHz, Intel at 3.50 GHz.
• Boost clock: AMD reaches 3.20 GHz, Intel reaches 5.10 GHz.
• TDP: AMD is rated at 15 W, Intel at 65 W.
• Socket: AMD uses AMD Socket FP5, Intel uses Intel Socket 1851.
• Codename: AMD uses Picasso, Intel uses Arrow Lake-S.
• Process node: AMD uses 12 nm, Intel uses 3 nm.
• Foundry: AMD uses GlobalFoundries, Intel uses TSMC.
• Transistors: AMD has 4,940 million, Intel has 17,800 million.
• Die size: AMD measures 210 mm², Intel measures 243 mm².
• L1 cache: AMD has 96 KB per core, Intel has 192 KB per core.
• L2 cache: AMD has 512 KB per core, Intel has 3 MB per core.
• L3 cache: AMD has 4 MB shared, Intel has 24 MB shared.
• Memory support: AMD uses DDR4, Intel uses DDR5.
• Memory bandwidth: AMD delivers 38.4 GB/s, Intel delivers 102.4 GB/s.
• ECC memory: AMD does not support it, Intel supports it.
• PCIe: AMD uses Gen 3, Intel uses Gen 5 with 20 lanes from the CPU.
• Integrated graphics: AMD uses Radeon Vega 8, Intel uses Arc Xe-LPG Graphics 64EU.
• Market segment: AMD is mobile, Intel is desktop.
• Release date: AMD is dated 2026-05-31, Intel is dated 2025-01-06.
• Launch MSRP: Intel is listed at $270, AMD has no recorded value.

Where Each One Wins

The Intel Core Ultra 5 245 wins in every benchmark category recorded. It takes passmark_data_compression, passmark_data_encryption, passmark_extended_instructions, passmark_find_prime_numbers, passmark_floating_point_math, passmark_integer_math, passmark_multithread, passmark_physics, passmark_random_string_sorting, passmark_single_thread, and passmark_singlethread. The margins range from -63.8% to -95.1%. Its wins are largest in prime number finding and floating point math, where it outperforms AMD by over 95%. Its smallest win is in single-threaded tasks, but that is still a dominant margin.

The AMD Ryzen 3 3100U wins no benchmark comparisons in this dataset. Its only strengths are relative and contextual. It uses a 15 W TDP, which suits fanless or low-power mobile designs. It pairs with the AMD Socket FP5, indicating a mobile platform. Its 12 nm process and Picasso architecture are older, but the part remains active in production. For workloads that fit within a 2-core, 2-thread envelope, such as basic office tasks or legacy software, the 3100U can function, but the recorded data shows no scenario where it exceeds the Intel part.

Where the AMD part might be chosen is in systems that require its specific socket, power envelope, or integrated Radeon Vega 8 graphics. The Intel part, with its Arc Xe-LPG Graphics 64EU, targets desktop builds. The database does not include a head-to-head graphics benchmark, so GPU performance cannot be compared directly. Based on CPU benchmarks alone, the Intel Core Ultra 5 245 is the superior processor in every measured dimension.