Intel Core i3-12100E vs Intel Core i5-10600KF Comparison

The Intel Core i5-10600KF and Intel Core i3-12100E represent two distinct generations of Intel desktop engineering, separated by roughly two years of process and microarchitecture evolution. The i5-10600KF is a 6-core, 12-thread Comet Lake part on the 14 nm node, while the i3-12100E is a 4-core, 8-thread Alder Lake-S chip built on the 10 nm node. Despite the core count disadvantage, the newer i3 holds its own in several workloads, and the head-to-head data reveals a nuanced split rather than a straightforward generational sweep.

Head-to-Head Benchmarks

The most decisive victories for the Intel Core i5-10600KF come in multi-threaded and memory-intensive tasks. In PassMark’s random string sorting test, the i5-10600KF scores 26,532 against 16,089 for the i3-12100E, a 64.9% advantage. That is the largest single benchmark gap in the entire comparison. The i5 also dominates data compression with a score of 211,643 versus 160,112, a 32.2% lead. Extended instructions follow the same pattern: 14,167 for the i5 versus 10,814 for the i3, a 31% margin. Integer math performance favors the older chip as well, with 47,508 points against 40,885, a 16.2% difference. These results align with the i5’s six physical cores and twelve threads, which provide a clear edge in workloads that scale with core count and memory bandwidth.

The i3-12100E, however, wins the single-threaded and lightly threaded contests by substantial margins. In Geekbench single-core, the i3 scores 2,202 versus 1,671 for the i5, a 24.1% difference. PassMark single-thread also favors the i3, 3,438 to 2,908, a 15.4% lead. The i3’s newer Alder Lake architecture delivers a significantly higher instructions-per-clock, which shows up immediately in these tests. Physics simulation in PassMark is another strong point for the i3: 1,185 versus 810, a 31.6% advantage. Prime number finding favors the i3 as well, 63 to 45, a 28.6% lead. Floating point math goes to the i3 by 7.5%, with 31,919 points versus 29,521. Data encryption is the i3’s biggest win in percentage terms: 8,069 versus 4,832, a 40.1% margin, suggesting the newer core’s dedicated cryptography instructions are markedly more efficient.

In Cinebench, the older i5 actually wins every single test, but only by narrow margins. Cinebench R15 multi-core: 1,209 versus 1,164, a 3.9% lead. R15 single-core: 170 versus 164, a 3.7% lead. R20 multi-core: 5,041 versus 4,854, a 3.9% lead. R20 single-core: 711 versus 685, a 3.8% lead. R23 multi-core: 12,003 versus 11,559, a 3.8% lead. R23 single-core: 1,694 versus 1,631, a 3.9% lead. These are consistent, but the margins are small enough that real-world differences would be difficult to perceive. The i5’s extra two cores and four threads give it an edge in multi-core Cinebench, while its higher base clock of 4.10 GHz compared to 3.20 GHz on the i3 helps in single-core Cinebench, despite the i3’s architectural advantage.

GeekBench multi-core is nearly a tie: the i3 scores 7,661 versus 7,633 for the i5, a 0.4% difference in favor of the newer chip. PassMark multi-thread is similarly close, with the i3 at 14,271 and the i5 at 14,169, a 0.7% margin. These near-dead heats indicate that the i3’s four faster cores can almost match the i5’s six slower cores in certain mixed workloads, but the i5 retains the advantage in pure multi-threaded rendering tasks.

The overall win tally is 10 for the i5-10600KF and 9 for the i3-12100E across the 19 head-to-head benchmarks, but the magnitude of the wins matters more than the count. The i5’s largest wins are in the 30% to 65% range, while the i3’s largest wins are in the 15% to 40% range. The average benchmark score in the database shows the i3 slightly ahead overall: 16,853 versus 16,228 for the i5, a difference of about 3.9%. Both CPUs sit at the 70th percentile among all CPUs tracked, meaning they belong to the same performance tier despite their generational gap.

Where Each One Wins

The Intel Core i5-10600KF is the clear choice for multi-threaded production workloads that are not heavily dependent on single-core speed. Video rendering in Cinebench, data compression, integer math, and random string sorting all benefit from the i5’s six cores and twelve threads. The 32.2% lead in data compression and the 64.9% lead in string sorting are significant for database operations, file archiving, and any workload that moves large amounts of text or structured data. The i5 also wins in extended instructions, which indicates better throughput for SIMD-heavy code. For users who run parallel batch jobs, compile large codebases, or process media, the i5-10600KF provides a tangible performance cushion.

The Intel Core i3-12100E wins in single-threaded responsiveness and in workloads that use modern instruction sets. The 24.1% Geekbench single-core lead and the 15.4% PassMark single-thread lead translate to faster application launch times, snappier web browsing, and better performance in legacy software that only uses one or two cores. The i3’s 40.1% lead in data encryption is particularly relevant for security software, VPNs, and disk encryption, where the newer core’s AES-NI implementation is markedly stronger. Physics simulation, which often relies on single-threaded collision detection and rigid body calculations, also favors the i3 by 31.6%. The i3’s floating point math advantage of 7.5% further supports its use in scientific and engineering applications that are not fully parallelized.

In mixed workloads, the two are nearly indistinguishable. GeekBench multi-core and PassMark multi-thread both land within 1% of each other, so the choice between them for general productivity tasks will come down to other factors such as platform features rather than raw compute.

Architecture Differences

The foundational difference is the process node: the i5-10600KF uses Intel’s 14 nm process, while the i3-12100E uses the 10 nm node. This node shrink allows the i3 to fit a smaller die, measured at 163 mm², whereas the i5’s die size is not recorded in the database. The i5’s Comet Lake architecture is a refinement of Intel’s Skylake lineage, while the i3’s Alder Lake-S architecture represents a major redesign with higher IPC and support for newer platform features.

Core counts diverge sharply: the i5 has 6 cores and 12 threads, the i3 has 4 cores and 8 threads. The i5’s L1 cache is 64 KB per core, while the i3’s is 80 KB per core. L2 cache is 256 KB per core on the i5 versus 1.25 MB per core on the i3, a significant increase that helps the i3 keep more data close to the cores. Both share 12 MB of L3 cache, so the total cache hierarchy is comparable in size but distributed differently. The i3’s larger per-core L2 cache likely contributes to its strong single-threaded performance.

Clock speeds tell a similar story to the benchmarks. The i5 runs at a base clock of 4.10 GHz and boosts to 4.80 GHz. The i3 runs at 3.20 GHz base and 4.20 GHz boost. Despite the lower clocks, the i3 wins most single-threaded tests, which points to a large IPC advantage from the Alder Lake architecture. The i5’s higher clocks help it win Cinebench single-core by roughly 3.7% to 3.9%, but that is a small margin compared to the 15% to 24% leads the i3 achieves in other single-threaded benchmarks.

Memory support also differs. The i5 supports DDR4 only, with dual-channel memory and a recorded bandwidth of 42.7 GB/s. The i3 supports both DDR4 and DDR5, also dual-channel, though no bandwidth figure is recorded. The i3’s support for DDR5 opens a path to higher memory bandwidth in future builds, though the database does not quantify that advantage. PCIe connectivity is another differentiator: the i5 offers PCIe Gen 3 with 16 lanes from the CPU, while the i3 offers PCIe Gen 5 with 20 lanes. That gives the i3 platform more modern I/O headroom for high-speed SSDs and GPUs.

The i5 has no integrated graphics, as indicated by the null field for that spec. The i3 includes UHD Graphics 730, which means it can drive a display without a discrete GPU. The i5’s part number is SRH6S, the i3’s is SRL6U. The i5 has an unlocked multiplier for overclocking, while the i3 is locked. The i5’s TDP is 95 watts, the i3’s is 60 watts, indicating a lower thermal envelope for the newer chip.

FAQ

Q: Which CPU has the higher average benchmark score in the database?

A: The Intel Core i3-12100E has a higher average benchmark score of 16,853, compared to 16,228 for the Intel Core i5-10600KF.

Q: How much faster is the i5-10600KF in Cinebench R23 multi-core?

A: The i5 scores 12,003 versus 11,559 for the i3, a margin of 3.8%.

Q: What is the largest single benchmark lead for the i3-12100E?

A: In PassMark data encryption, the i3 scores 8,069 against 4,832 for the i5, a 40.1% advantage.

Q: Do both CPUs support ECC memory?

A: No, both the i5-10600KF and the i3-12100E have ECC memory support set to false.

Q: Does either CPU include integrated graphics?

A: The i5-10600KF has no integrated graphics. The i3-12100E includes UHD Graphics 730.

Q: Which CPU has an unlocked multiplier?

A: The Intel Core i5-10600KF has an unlocked multiplier for overclocking. The Intel Core i3-12100E does not.

Specification Differences

The two CPUs differ in several core specifications. The i5-10600KF has 6 cores and 12 threads, while the i3-12100E has 4 cores and 8 threads. Base clocks are 4.10 GHz for the i5 and 3.20 GHz for the i3, with boost clocks of 4.80 GHz and 4.20 GHz respectively. TDP is 95 watts for the i5 and 60 watts for the i3. The i5 uses Intel Socket 1200, the i3 uses Intel Socket 1700. Architecture is Comet Lake for the i5 and Alder Lake for the i3, with process nodes of 14 nm and 10 nm respectively. The i5’s L1 cache is 64 KB per core, the i3’s is 80 KB per core. L2 cache is 256 KB per core for the i5 and 1.25 MB per core for the i3. L3 cache is 12 MB shared on both. Memory support is DDR4 for the i5 and DDR4 plus DDR5 for the i3. Memory bandwidth is recorded at 42.7 GB/s for the i5, with no figure for the i3. PCIe is Gen 3 with 16 lanes for the i5 and Gen 5 with 20 lanes for the i3. Integrated graphics are absent on the i5 and present as UHD Graphics 730 on the i3. The i5 has an unlocked multiplier, the i3 is locked. Release dates are April 2020 for the i5 and January 2022 for the i3. The i3 carries a launch MSRP of $125.