Intel Core i5-1135G7 vs Intel Core i7-10510U Comparison

Head-to-Head Benchmarks

The benchmark data presents an unambiguous picture: the Intel Core i5-1135G7 wins all 19 head-to-head comparisons against the Intel Core i7-10510U. There is not a single test where the older Comet Lake part takes the lead, which makes this a one-sided matchup in the database records.

The most dramatic gap appears in PassMark data encryption, where the i5-1135G7 scores 5465 against 2151 for the i7-10510U, a delta of 154.1%. That is the single largest percentage advantage in the entire head-to-head set. The i5 continues its dominance with PassMark find prime numbers, winning 34 to 22, a 54.5% difference. Even the closest contests favor the newer chip. In PassMark random string sorting, the i5-1135G7 scores 12625 versus 11068, a 14.1% edge, and PassMark physics shows a 22.2% advantage with 577 against 472.

Cinebench results cluster tightly around a consistent margin. The multicore tests show a 47% delta in R15 (797 versus 542), 46.8% in R20 (3321 versus 2262), and 46.8% in R23 (7909 versus 5388). Single-core Cinebench tests follow the same pattern: R15 single core has the i5 ahead by 47.4% (112 versus 76), R20 single core by 46.7% (468 versus 319), and R23 single core by 46.8% (1116 versus 760). The consistency of these deltas suggests the architectural improvements of Tiger Lake benefit both single-threaded and multi-threaded workloads equally.

Geekbench shows a slightly different spread. The multicore result favors the i5-1135G7 by 48.9% (3944 versus 2648), while the single-core result shows a smaller but still substantial 37.3% advantage (1417 versus 1032). This indicates the per-core uplift is strong, but the multicore scaling of the newer chip is even more pronounced relative to the older part.

PassMark integer math and floating point math both land in the mid-30s percentage range. Integer math scores 31814 against 23441, a 35.7% delta, while floating point math scores 19221 against 14080, a 36.5% delta. Extended instructions show a 41.8% difference (7406 versus 5224), and data compression comes in at 25.1% (103380 versus 82606). The PassMark multithread score shows a 47.5% advantage (9512 versus 6450), while single-thread lands at 18% (2640 versus 2237).

The average benchmark score in the database reinforces the pattern: the i5-1135G7 sits at 9053, while the i7-10510U sits at 8580. Both chips share the same 65th percentile ranking among all CPUs in the database, but the raw score gap is meaningful. The i5-1135G7's nearest rivals include the Intel Xeon Gold 6346 with an average score of 9155 (1.1% higher) and the Intel Core i5-8350U with 8998 (0.6% lower). The i7-10510U, by contrast, sits directly beside the Intel Core i5-8250U at 8577, essentially a 0% delta, and the Intel Core i5-8265U at 8568, a 0.1% difference.

Architecture Differences

The two processors come from different architectural generations and manufacturing nodes. The i5-1135G7 uses the Tiger Lake architecture, specifically Willow Cove cores, built on Intel's 10 nm process with a die size of 144 mm². The i7-10510U uses Comet Lake, with Skylake-derived cores on a 14 nm process. The process node difference alone explains part of the efficiency and performance gap, though the database does not provide direct power efficiency measurements.

Both chips have 4 cores and 8 threads. Core counts do not differentiate them. The cache hierarchy, however, shows notable differences. The i5-1135G7 has 80 KB of L1 cache per core and 1.25 MB of L2 cache per core. The i7-10510U has 64 KB of L1 per core and 256 KB of L2 per core. The L3 cache is identical at 8 MB shared, so the per-core cache advantages of Tiger Lake come from the lower levels.

Clock speeds tell a mixed story. The i7-10510U has a higher base clock at 1.80 GHz versus 1.50 GHz for the i5-1135G7, and a higher boost clock at 4.90 GHz versus 4.20 GHz. Despite this clock disadvantage, the i5-1135G7 wins every benchmark, which points to substantially better instructions per clock from the Willow Cove architecture. The i7-10510U also has a higher TDP at 25 watts versus 15 watts, yet still loses across the board.

Memory support differs as well. The i5-1135G7 supports DDR4 and LPDDR4X in a dual-channel configuration, while the i7-10510U supports DDR3 and DDR4. The database does not list a memory bus configuration for the i7-10510U. PCIe support also differs: the i5-1135G7 has Gen 4 with 4 lanes from the CPU, while the database lists no PCIe information for the i7-10510U.

Integrated graphics separate the two clearly. The i5-1135G7 carries Iris Xe Graphics G7 with 80 execution units, while the i7-10510U has UHD Graphics. The database does not include graphics benchmark scores in this comparison, but the execution unit count and the newer graphics architecture give the Tiger Lake part a structural advantage for any workload that touches the iGPU.

The sockets differ: the i5-1135G7 uses Intel BGA 1449, while the i7-10510U uses Intel BGA 1440. Both are end-of-life products in the database. The i5-1135G7 was released in September 2020, while the i7-10510U was released in August 2019. The i5-1135G7 has a launch MSRP of $309, while the i7-10510U has no listed MSRP in the database.

The Verdict

The data supports only one conclusion for raw performance: the Intel Core i5-1135G7 is the superior processor in this matchup. It wins every single benchmark in the head-to-head set, with deltas ranging from 14.1% in PassMark random string sorting to 154.1% in PassMark data encryption. The consistency of the wins, across Cinebench, Geekbench, and PassMark, indicates that the advantage is not workload-specific but architectural.

The i7-10510U has a higher boost clock and a higher base clock, but that does not translate into any benchmark victory. The i5-1135G7 achieves its wins while carrying a lower TDP of 15 watts versus 25 watts, which suggests a meaningful efficiency advantage in the recorded data. Users who prioritize performance in the applications represented by these benchmark suites should select the i5-1135G7 without hesitation.

The i7-10510U remains a functional 4-core, 8-thread mobile processor, and its average benchmark score of 8580 places it in the same 65th percentile as the i5-1135G7. But percentile rankings do not capture the head-to-head reality. When the two chips face each other directly, the older Comet Lake part has no answer.

FAQ

Q: Which processor is faster in single-core workloads?

A: The Intel Core i5-1135G7 wins all single-core tests. Geekbench single-core shows 1417 versus 1032, a 37.3% delta. Cinebench R23 single-core shows 1116 versus 760, a 46.8% delta. PassMark single-thread shows 2640 versus 2237, an 18% delta.

Q: Does the i7-10510U win any benchmark at all?

A: No. The head-to-head benchmark set contains 19 tests, and the Intel Core i5-1135G7 wins all 19. The i7-10510U does not record a single victory.

Q: Which chip has more cores or threads?

A: Neither. Both processors have 4 cores and 8 threads. The performance difference comes from architecture, cache, and instructions per clock, not core count.

Q: How do the cache sizes compare?

A: The i5-1135G7 has 80 KB of L1 per core and 1.25 MB of L2 per core. The i7-10510U has 64 KB of L1 per core and 256 KB of L2 per core. Both share 8 MB of L3.

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

A: PassMark data encryption shows the widest margin. The i5-1135G7 scores 5465 against 2151 for the i7-10510U, a delta of 154.1%.

Q: Are both processors still in production?

A: No. Both are listed as end-of-life in the database. The i5-1135G7 was released in September 2020, and the i7-10510U was released in August 2019.

Where Each One Wins

The Intel Core i5-1135G7 wins in every measurable category in the database. Its largest advantages appear in data encryption, where the 154.1% delta indicates a major uplift in cryptographic workloads. Prime number finding also favors the newer chip heavily at 54.5%, and multithreaded rendering tests in Cinebench show consistent 46.8% to 47% advantages across R15, R20, and R23. For users running content creation, encryption, or any CPU-bound productivity task, the i5-1135G7 is the clear choice.

The i7-10510U has no benchmark wins in the head-to-head data. Its closest relative performance comes in PassMark random string sorting, where the i5-1135G7 leads by only 14.1%, and PassMark physics, where the lead is 22.2%. These are the workloads where the older chip comes closest to matching its rival. For users who must use the i7-10510U for platform compatibility reasons, the random string sorting and physics results represent the smallest performance penalties.

Specification Differences

The two processors differ in nearly every specification field where data is recorded. The i5-1135G7 has a base clock of 1.50 GHz and a boost clock of 4.20 GHz, while the i7-10510U has a base clock of 1.80 GHz and a boost clock of 4.90 GHz. The i5-1135G7 has a TDP of 15 watts, while the i7-10510U has a TDP of 25 watts.

The i5-1135G7 uses the Tiger Lake architecture on a 10 nm process with a 144 mm² die size, while the i7-10510U uses Comet Lake on a 14 nm process with no die size recorded. The i5-1135G7 has 80 KB of L1 cache per core and 1.25 MB of L2 per core, while the i7-10510U has 64 KB of L1 per core and 256 KB of L2 per core. The L3 cache is identical at 8 MB shared.

Memory support differs: the i5-1135G7 supports DDR4 and LPDDR4X in dual-channel mode, while the i7-10510U supports DDR3 and DDR4. The i5-1135G7 has PCIe Gen 4 with 4 CPU lanes, while no PCIe information is recorded for the i7-10510U. The integrated graphics differ: Iris Xe Graphics G7 with 80 EU on the i5-1135G7 versus UHD Graphics on the i7-10510U. The sockets also differ: Intel BGA 1449 for the i5-1135G7 and Intel BGA 1440 for the i7-10510U.

The i5-1135G7 was released in September 2020 with a launch MSRP of $309. The i7-10510U was released in August 2019 with no MSRP recorded. Both are end-of-life, both are mobile segment parts, and both lack unlocked multipliers. The i5-1135G7 has a recorded part number of SRK05, while the i7-10510U has no part number listed.