Intel Core 5 120U vs Intel Core 7 253PE Comparison

Head-to-Head Benchmarks

The benchmark comparison between the Intel Core 5 120U and the Intel Core 7 253PE is decisively one-sided. Across all 17 recorded head-to-head tests, the Core 7 253PE takes the win. The largest margin appears in Cinebench R23 multicore, where the Core 7 253PE scores 24,880 against 6,659 for the Core 5 120U, a delta of 73.2%. This is the single biggest gap in the dataset, and it highlights a fundamental difference in sustained multi-threaded capability.

The single-core story is closer but still favors the Core 7 253PE. In Cinebench R23 single-core, the Core 7 253PE posts 3,512 versus 1,756.5, exactly 50% ahead. The PassMark single-thread test shows a narrower margin: 3,955 versus 3,479, a 12% advantage. That 12% gap is the smallest delta recorded between the two parts, indicating that per-thread performance is the most competitive area for the Core 5 120U, though it still trails.

Cinebench R20 multicore shows a 48.8% deficit for the Core 5 120U, with scores of 5,349 against 10,449. The R15 multicore test tells a similar story: 1,150.5 versus 2,507, a 54.1% gap. In R15 single-core, the Core 7 253PE leads 354 to 245, a 30.8% advantage. These Cinebench results, spanning three generations of the render benchmark, consistently place the Core 7 253PE roughly 30% to 50% ahead in single-thread workloads and 49% to 73% ahead in multi-thread workloads.

PassMark's specialized tests reinforce the pattern. Data compression favors the Core 7 253PE by 50.9%, with scores of 339,133 versus 166,432. Data encryption shows a 43.1% lead for the Core 7 253PE: 18,385 versus 10,453. Extended instructions, a test of SIMD-heavy code, goes to the Core 7 253PE by 57.4%, 21,806 against 9,299. The prime number search test shows a 61.6% gap, 138 versus 53. Floating point math, integer math, multithread, physics, and random string sorting all land in a similar band, with the Core 7 253PE leading by 41.8% to 55.5%.

For the Core 5 120U, there is no single benchmark where it records a win. Its best relative showing is the PassMark single-thread test, where the 12% deficit is the closest margin in the entire comparison. The data confirms that the Core 7 253PE is the stronger processor in every measured workload, with the widest gaps appearing in heavily parallelized rendering tasks and the narrowest gap in lightly threaded integer work.

Architecture Differences

The two processors share Intel as the manufacturer and a 10 nm process node, but the similarities largely end there. The Core 5 120U is built on Raptor Lake, specifically the Raptor Lake-U codename, and targets the mobile segment. It uses the Intel BGA 1744 socket, runs at a 15 W TDP, and has a base clock of 1.40 GHz with a boost clock of 5.00 GHz. The Core 7 253PE, by contrast, uses the Bartlett Lake codename and targets the desktop segment. It fits the Intel Socket 1700, draws 65 W, and operates at a 2.50 GHz base clock with a 5.50 GHz boost clock.

Both parts have 10 cores, but threading differs significantly. The Core 5 120U supports 12 threads, while the Core 7 253PE supports 20 threads. That extra thread count comes from full Hyper-Threading support across the core configuration, and it is one of the main reasons for the large multicore deltas observed in the benchmark data.

Cache configurations also diverge. The Core 5 120U provides 80 KB of L1 per core, 1.25 MB of L2 per core, and 12 MB of shared L3 cache. The Core 7 253PE also uses 80 KB of L1 per core, but its L2 grows to 2 MB per core and its shared L3 jumps to 33 MB. The larger cache hierarchy on the Core 7 253PE contributes to its advantage in data-heavy PassMark tests such as compression and encryption.

Memory support is similar on paper, with both parts accepting DDR4 and DDR5 in a dual-channel configuration. The Core 7 253PE, however, lists a measured memory bandwidth of 89.6 GB/s, a figure not provided for the Core 5 120U. ECC memory is supported on the Core 7 253PE but not on the Core 5 120U, a meaningful distinction for workstation reliability use. PCIe connectivity also differs: the Core 5 120U offers Gen 4 with 8 lanes, while the Core 7 253PE provides Gen 5 with 16 lanes. The desktop part clearly has broader I/O headroom.

Integrated graphics differ as well. The Core 5 120U uses Iris Xe Graphics with 80 execution units, while the Core 7 253PE ships with the more modest UHD Graphics 730. The mobile part's GPU is more capable for light graphics work, though the benchmark set does not include any GPU tests to quantify this.

Release timing is also notable. The Core 5 120U launched on January 7, 2024, while the Core 7 253PE is dated March 8, 2026. The Core 7 253PE carries a launch MSRP of $384. The Core 5 120U has no recorded launch MSRP. Both parts are listed as Active in production status, and neither has an unlocked multiplier.

The Verdict

The recorded data points to a clear hierarchy. The Core 7 253PE wins every benchmark in the head-to-head set, with margins ranging from 12% in PassMark single-thread to 73.2% in Cinebench R23 multicore. Its average benchmark score of 40,557 places it in the 87th percentile of all CPUs in the database. The Core 5 120U averages 17,898 and sits in the 72nd percentile. The Core 7 253PE also lands among rivals such as the Intel Core 5 223PE, Intel Core Ultra X7 368H, and AMD Ryzen 9 7940H, all within 0.3% of its average score. The Core 5 120U, by comparison, sits near the AMD Ryzen 5 3600XT, Intel Core 5 221TE, and Intel Core 7 350, with deltas of 0.2% to 0.7%.

The Core 5 120U is a 15 W mobile part with a 5.00 GHz boost clock and 12 threads. It is designed for battery-conscious laptops, where its lower TDP and integrated Iris Xe Graphics matter more than raw throughput. The Core 7 253PE is a 65 W desktop processor with 20 threads, a 5.50 GHz boost clock, 33 MB of L3 cache, and Gen 5 PCIe. It is built for sustained performance in threaded workloads.

Users who prioritize single-thread responsiveness will still find the Core 7 253PE ahead, but the 12% margin in PassMark single-thread is modest. Users who run rendering, compression, encryption, or any heavily threaded code will see a much larger benefit from the Core 7 253PE. The Core 5 120U's best case is as a low-power mobile chip where the 15 W TDP and BGA 1744 socket fit a thin-and-light chassis. The Core 7 253PE's best case is as a desktop workhorse where 65 W, Socket 1700, and 20 threads are acceptable trade-offs.

FAQ

Q: Which processor has more threads?

A: The Intel Core 7 253PE has 20 threads, while the Intel Core 5 120U has 12 threads. Both have 10 cores.

Q: What is the largest benchmark gap between the two?

A: The largest gap is in Cinebench R23 multicore, where the Core 7 253PE scores 24,880 versus 6,659 for the Core 5 120U, a delta of 73.2%.

Q: Which processor has the larger L3 cache?

A: The Intel Core 7 253PE has 33 MB of shared L3 cache. The Intel Core 5 120U has 12 MB of shared L3 cache.

Q: Do both processors support ECC memory?

A: No. The Intel Core 7 253PE supports ECC memory. The Intel Core 5 120U does not.

Q: What is the closest benchmark result between the two?

A: The closest result is in the PassMark single-thread test, where the Core 7 253PE scores 3,955 and the Core 5 120U scores 3,479, a 12% delta.

Q: Which processor has the higher boost clock?

A: The Intel Core 7 253PE has a boost clock of 5.50 GHz. The Intel Core 5 120U has a boost clock of 5.00 GHz.

Where Each One Wins

The Intel Core 7 253PE wins in every benchmark category recorded. Its strongest advantages appear in multi-threaded and data-intensive workloads. Cinebench R23 multicore shows a 73.2% lead, Cinebench R15 multicore shows a 54.1% lead, and Cinebench R20 multicore shows a 48.8% lead. PassMark extended instructions, floating point math, integer math, and find prime numbers all show the Core 7 253PE ahead by 54.2% to 61.6%. Data compression and encryption also favor the Core 7 253PE by 50.9% and 43.1%, respectively. The Core 7 253PE's 20 threads, 33 MB L3 cache, and 5.50 GHz boost clock drive these results.

The Intel Core 5 120U does not win any recorded benchmark, but its closest margins reveal where it is least disadvantaged. The PassMark single-thread test shows only a 12% gap, and the Cinebench R15 single-core test shows a 30.8% gap. These results indicate that the Core 5 120U is comparatively stronger in lightly threaded, single-core tasks than in heavily parallelized workloads. Its 15 W TDP, Iris Xe Graphics 80EU, and BGA 1744 socket also position it for mobile designs where power draw and integrated graphics matter. The desktop-bound Core 7 253PE, with its 65 W TDP, UHD Graphics 730, and Socket 1700, is the choice for anyone running threaded desktop workloads, based strictly on the benchmark data.