CPU Comparison

The Intel Core 5 120U and Intel Core i3-13100F present a stark contrast in design philosophy: one is a 10-core mobile processor with a 15W TDP, while the other is a 4-core desktop chip with a 58W TDP. Despite their architectural kinship, the benchmark data reveals a complex picture where raw core count doesn't always dictate victory, and the desktop part's higher clock speeds and power budget often, but not always, overcome the mobile part's numerical core advantage. The Core i3-13100F takes 11 of the 19 head-to-head benchmarks, but the Core 5 120U counters with significant wins in several key workloads, making the choice highly dependent on specific usage patterns.

Head-to-Head Benchmarks

The most dramatic single result in this comparison is in Cinebench R23 multi-core, where the Intel Core i3-13100F scores 12,458 against the Core 5 120U's 6,659, a massive 46.5% advantage. This is the largest delta in any test and highlights the desktop chip's ability to sustain high clocks across its four performance cores under load. The i3-13100F also wins Geekbench multi-core by 23.1% (7,655 vs 5,888) and Cinebench R15 multi-core by 8.3% (1,255 vs 1,150.5), reinforcing its multi-threaded dominance in sustained compute scenarios.

However, the Core 5 120U posts an unexpected win in Cinebench R20 multi-core, scoring 5,349 versus 5,232, a 2.2% margin. This is a notable reversal of the R15 and R23 results, suggesting the mobile chip's efficiency-oriented design can sometimes outperform when the workload scales differently across benchmark versions. The Core 5 120U also wins Passmark integer math by 21.5% (52,280 vs 43,038) and Passmark data encryption by 23% (10,453 vs 8,496), showing that its 10 cores provide a real advantage in certain parallel integer workloads that the desktop chip's four cores cannot match.

Single-core results are surprisingly close despite the different clock speeds. The Core i3-13100F edges out the Core 5 120U in Cinebench R23 single-core by a razor-thin 0.1% (1,758 vs 1,756.5) and in Passmark single-thread by 3.6% (3,609 vs 3,479). Yet the Core 5 120U wins Cinebench R15 single-core by a staggering 38.4% (245 vs 177) and Cinebench R20 single-core by 2.3% (755 vs 738). The R15 result is anomalous when compared to the other single-core tests, but it is a clear data point in the mobile chip's favor. The i3-13100F also wins Geekbench single-core by 16% (2,056 vs 1,727), suggesting that in modern single-threaded workloads, the desktop chip's higher base clock of 3.40 GHz versus 1.40 GHz provides a tangible edge.

In the remaining workloads, the split is clear. The Core 5 120U wins Passmark floating-point math by 7.5% (36,026 vs 33,510), Passmark random string sorting by 15% (19,060 vs 16,569), and Passmark multithread by 2.4% (15,042 vs 14,687). The Core i3-13100F counters with wins in Passmark data compression by 1% (168,043 vs 166,432), Passmark extended instructions by 18.5% (11,407 vs 9,299), Passmark find prime numbers by 13.1% (61 vs 53), and Passmark physics by 11.2% (1,055 vs 937). The overall score average reflects this balance: the Core 5 120U has an average benchmark score of 17,898, while the i3-13100F sits at 17,653, a 0.2% difference that places them in nearly identical percentile positions (72nd vs 71st percentile of all CPUs).

Where Each One Wins

The Intel Core i3-13100F is the clear winner for sustained multi-core rendering and compute tasks. Its 46.5% lead in Cinebench R23 multi-core and 23.1% lead in Geekbench multi-core make it the more capable processor for video encoding, 3D rendering, and other workloads that can fully utilize all available cores for extended periods. The desktop chip's 58W TDP allows it to maintain high boost clocks without the thermal constraints of the mobile part. It also takes the physics simulation test by 11.2%, which is relevant for scientific computing and certain game physics engines.

The Intel Core 5 120U, despite its mobile pedigree, wins in several areas that benefit from a higher core count with lower per-core intensity. Its 21.5% lead in integer math and 23% lead in data encryption indicate that tasks like cryptographic operations and certain database workloads perform better on its 10 cores. The 15% advantage in random string sorting further suggests that sorting and data manipulation tasks see a benefit from the additional threads. The mobile chip also wins Passmark multithread by 2.4%, which is a general throughput metric that captures mixed workloads.

For single-threaded responsiveness, the picture is mixed. The i3-13100F leads in Geekbench single-core by 16% and Passmark single-thread by 3.6%, which are modern indicators of day-to-day application responsiveness. However, the Core 5 120U's 38.4% win in Cinebench R15 single-core is too large to ignore, even if it appears to be an outlier compared to other single-core tests. In practical terms, the desktop chip likely offers smoother performance in lightly-threaded applications, but the mobile chip is not far behind in most metrics.

Architecture Differences

Both processors share the same Raptor Lake architecture and are built on Intel's 10 nm process node, so the fundamental CPU design is identical. However, they belong to different platform segments: the Core 5 120U is a Raptor Lake-U part designed for mobile devices, while the Core i3-13100F is a Raptor Lake-S part for desktops. This distinction drives most of the architectural differences.

The Core 5 120U has 10 cores and 12 threads, while the Core i3-13100F has only 4 cores and 8 threads. This suggests the mobile part uses a hybrid design with performance and efficiency cores, while the desktop part uses only performance cores. Both have the same L1 cache at 80 KB per core and L2 cache at 1.25 MB per core, and both share a 12 MB L3 cache. The process node is identical at 10 nm, and both are manufactured by Intel. The die size differs, with the i3-13100F listed at 163 mm², while the Core 5 120U has no die size listed.

The key architectural divergence is the integrated graphics. The Core 5 120U includes Iris Xe Graphics with 80 execution units, making it a complete system-on-chip for laptops. The Core i3-13100F has no integrated graphics at all, meaning it requires a discrete GPU for any display output. This is a fundamental difference in their target use cases: the mobile chip is designed for thin-and-light laptops where a separate GPU is optional, while the desktop chip is intended for builds with a dedicated graphics card. Additionally, the Core 5 120U uses the Intel BGA 1744 socket, which is soldered to the motherboard, while the i3-13100F uses the Intel Socket 1700, which is socketed and replaceable.

Specification Differences

The most obvious specification difference is core count: the Core 5 120U has 10 cores and 12 threads, while the Core i3-13100F has 4 cores and 8 threads. This gives the mobile part a 6-core and 4-thread advantage. Clock speeds also differ substantially: the Core 5 120U has a base clock of 1.40 GHz and a boost clock of 5.00 GHz, while the Core i3-13100F has a base clock of 3.40 GHz and a boost clock of 4.50 GHz. The desktop chip's base clock is 2.0 GHz higher, but the mobile chip's boost clock is 0.5 GHz higher.

The TDP is a stark contrast: the Core 5 120U consumes 15W, while the Core i3-13100F consumes 58W, a difference of 43W. This reflects their respective market segments: mobile efficiency versus desktop performance. The sockets are different (BGA 1744 vs Socket 1700), and the PCIe support differs: the Core 5 120U supports Gen 4 with 8 lanes (CPU only), while the Core i3-13100F supports Gen 5 with 20 lanes (CPU only). The integrated graphics presence is also a differentiator, with the Core 5 120U featuring Iris Xe Graphics 80EU and the i3-13100F having none.

The release dates and launch pricing also differ. The Core 5 120U was released on 2024-01-07 with no launch MSRP listed, while the Core i3-13100F was released on 2023-01-03 with a launch MSRP of $109. Both support DDR4 and DDR5 memory via dual-channel configuration, and neither supports ECC memory. Neither processor has an unlocked multiplier. The Core 5 120U's part number is SRM7P, while the i3-13100F's is SRMBV.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 5 120U has 10 cores and 12 threads, while the Intel Core i3-13100F has 4 cores and 8 threads.

Q: Does the Intel Core i3-13100F include integrated graphics?

A: No, the Intel Core i3-13100F has no integrated graphics, whereas the Intel Core 5 120U includes Iris Xe Graphics with 80 execution units.

Q: What is the TDP difference between the two processors?

A: The Intel Core 5 120U has a TDP of 15W, while the Intel Core i3-13100F has a TDP of 58W, making the desktop chip 43W higher.

Q: Which processor has the higher boost clock speed?

A: The Intel Core 5 120U has a boost clock of 5.00 GHz, which is 0.5 GHz higher than the Intel Core i3-13100F's 4.50 GHz boost clock.

Q: How do their average benchmark scores compare?

A: The Intel Core 5 120U has an average benchmark score of 17,898, while the Intel Core i3-13100F scores 17,653, a difference of 0.2% in favor of the mobile chip.

Q: What is the release date and launch MSRP of the Intel Core i3-13100F?

A: The Intel Core i3-13100F was released on 2023-01-03 with a launch MSRP of $109.

The Verdict

The data presents a clear choice based on workload priority. If sustained multi-threaded performance for rendering, video encoding, or other CPU-intensive desktop tasks is the primary requirement, the Intel Core i3-13100F is the superior option. Its 46.5% lead in Cinebench R23 multi-core and 23.1% lead in Geekbench multi-core demonstrate that its four high-clock cores can outperform the mobile chip's ten lower-power cores in long-duration compute. The 58W TDP and Socket 1700 platform also make it a more versatile choice for desktop builders who can pair it with any LGA1700 cooler and a discrete GPU.

However, the Intel Core 5 120U is not without its strengths. Its 21.5% win in integer math and 23% win in data encryption make it a better fit for workloads that scale across many threads with lighter per-thread demands, such as certain database operations, compression tasks, and cryptographic functions. Its 15W TDP makes it dramatically more power-efficient, and the integrated Iris Xe Graphics means it can operate as a complete system without a discrete GPU, which is essential for laptops and compact systems. The 38.4% win in Cinebench R15 single-core also suggests that in certain legacy single-threaded workloads, the mobile chip can be surprisingly fast.

For users building a desktop PC with a dedicated graphics card, the Intel Core i3-13100F is the data-backed choice for maximum compute throughput. For users prioritizing portability, power efficiency, or a system without a discrete GPU, the Intel Core 5 120U offers a compelling blend of multi-threaded capability and integrated graphics. The overall average scores are nearly identical, 17,898 vs 17,653, indicating that neither chip is a clear overall victor. The decision ultimately rests on whether the application mix favors the desktop chip's sustained multi-core power or the mobile chip's broader thread count and efficiency. The i3-13100F's 46.5% Cinebench R23 lead is a decisive factor for creators, while the Core 5 120U's encryption and integer math wins are decisive for those specific workloads.