Intel Core i5-1135G7

The Intel Core i5-1135G7 is a mobile processor built on the Tiger Lake architecture, targeting thin-and-light laptops. It packs 4 cores and 8 threads, with a base clock of 1500.00 MHz and a boost clock of 4.20 GHz. The chip is manufactured on Intel’s 10 nm process, with a die size of 144 mm², and it integrates Iris Xe Graphics G7 80EU. This part has reached end-of-life status, having launched on 2020-09-01 with a launch MSRP of $309. Its average benchmark score sits at 9620, placing it in the 70th percentile of all CPUs, which signals a solid mid-tier performer for its class.

Single-Thread vs Multi-Thread Behavior

The benchmark data reveals a clear split between single-thread and multi-thread performance. In 3DMark, the single-thread score is 801, while the 2-thread score jumps to 1348 — a 68% improvement, showing that the second core adds substantial throughput for lightly threaded tasks. The 4-thread score climbs to 1995, and the 8-thread score reaches 2475, indicating that scaling is present but diminishing. The max-threads score of 2713 is only 9.6% above the 8-thread result, which underscores that the 4-core/8-thread configuration is the ceiling; adding more threads beyond that yields minimal gains.

Cinebench results reinforce this pattern. In Cinebench R23, the single-core score is 1141, while the multi-core score is 8082 — a ratio of roughly 7.1x. That is a strong multi-thread scaling for a 4-core part, though not linear, since 8 threads should ideally produce closer to 8x. The R20 results show 479 single-core and 3394 multi-core, a 7.1x ratio again, while R15 shows 114 single-core and 814 multi-core, a 7.1x ratio as well. This consistency suggests the scheduler and thermal headroom allow the chip to sustain near-peak performance across all cores during short bursts.

For real workloads, this behavior means the i5-1135G7 excels in tasks that use a few fast cores — such as web browsing, office productivity, and light photo editing — where the 4.20 GHz boost clock can be leveraged. Multi-threaded applications like video encoding or 3D rendering will see good gains from the 8 threads, but the chip is not a workstation-class part. The PassMark data shows a single-thread score of 2640, which is competitive for its generation, but the multithread score of 9512 indicates that heavy parallel loads will still be limited by the physical core count. Data compression scores 103380, while floating-point math hits 19221 and integer math reaches 31814 — these are all indicative of a balanced design that favors bursty, single-thread-heavy workloads over sustained all-core tasks.

Power and Thermals

The i5-1135G7 carries a TDP of 15 watts, which places it firmly in the ultra-low-power mobile segment. This TDP class is typical for thin-and-light laptops where cooling is constrained and battery life is prioritized. The 10 nm process node helps keep power draw manageable, but the 4.20 GHz boost clock will still generate heat under load. A capable air cooler with a small heatpipe or a modest fan solution should suffice for this chip, as the 15 W envelope is well within the range of standard laptop cooling designs.

Given the low TDP, the chip is unlikely to require exotic cooling solutions. The base clock of 1500.00 MHz is conservative, allowing the processor to idle efficiently and only ramp up to boost speeds when needed. The 8 MB of shared L3 cache and 1.25 MB L2 per core help reduce memory traffic, which indirectly lowers power consumption. The integrated Iris Xe Graphics G7 80EU also shares the thermal budget, so sustained gaming or GPU-heavy tasks will pull power away from the CPU cores. In practice, users should expect the chip to run warm during sustained multi-threaded loads but remain cool during typical office usage. The lack of an unlocked multiplier means no overclocking headroom, so thermals are managed entirely by the laptop’s firmware and cooling design.

How It Compares

Intel Core i5-1035G1: The nearest rival, the i5-1035G1, posts an average score of 9691, which is 0.7% higher than the i5-1135G7’s 9620. This delta is negligible in real-world terms, meaning the two chips are effectively tied in overall performance. The i5-1135G7’s faster boost clock and newer architecture do not translate into a measurable advantage in the aggregate benchmark data.

AMD EPYC 7402P: The EPYC 7402P, a server-class part, scores 9529, which is 1% lower than the i5-1135G7. This is a surprising comparison given the EPYC’s enterprise pedigree, but the delta is small enough to be within run-to-run variance. The i5-1135G7 holds a slight edge in this particular benchmark suite, though the EPYC’s core count would dominate in server workloads not represented here.

Intel Core i7-7700HQ: The older i7-7700HQ scores 9498, which is 1.3% lower than the i5-1135G7. Despite being a higher-tier part from a previous generation, the 7700HQ’s older architecture and higher power draw do not give it an advantage in these tests. The i5-1135G7’s newer Tiger Lake design and higher boost clock help it edge out the 4-year-old chip.

Intel Core i7-1165G7: The i7-1165G7, a higher-binned sibling in the same generation, scores 9787, which is 1.7% higher than the i5-1135G7. This is the largest delta among the rivals, but still a modest gap. The i7’s extra graphics execution units and slightly higher clocks likely account for the difference, but the i5-1135G7 remains within striking distance.

FAQ

Q: What is the core and thread count of the Intel Core i5-1135G7?

A: The processor has 4 cores and 8 threads, as listed in the benchmark data.

Q: What is the boost clock speed?

A: The boost clock is 4.20 GHz, while the base clock is 1500.00 MHz.

Q: Does the i5-1135G7 support ECC memory?

A: No, ECC memory is not supported. The chip supports DDR4 and LPDDR4X memory in a dual-channel configuration.

Q: What integrated graphics does it feature?

A: It includes Iris Xe Graphics G7 80EU, which is integrated directly into the processor.

Q: What is the production status of this CPU?

A: The i5-1135G7 is marked as end-of-life, meaning it is no longer in active production.

Q: How does it perform in single-threaded tasks?

A: In 3DMark single-thread, it scores 801, and in Cinebench R23 single-core, it scores 1141. PassMark single-thread score is 2640, indicating strong performance for lightly threaded workloads.

Benchmark Performance

The i5-1135G7’s average benchmark score of 9620 places it in the 70th percentile of all CPUs, which is a respectable position for a mobile part. When compared to its nearest rivals, the margins are tight. The i5-1035G1 leads by just 0.7%, with a score of 9691, meaning the two chips are effectively interchangeable in aggregate performance. The AMD EPYC 7402P trails by 1% at 9529, a surprising result given its server-class positioning, but the benchmark suite favors the i5’s single-thread agility. The i7-7700HQ is 1.3% behind at 9498, showing that generational improvements in the i5 more than compensate for the older i7’s higher tier. The i7-1165G7 leads by 1.7% at 9787, the largest gap among rivals, but still a minor difference that would be hard to notice in daily use.

Diving into specific tests, the 3DMark scores show a clear progression: 1348 at 2 threads, 1995 at 4 threads, and 2475 at 8 threads. The jump from 2 to 4 threads is a 48% gain, while the jump from 4 to 8 threads is 24%, indicating that the hyper-threading adds meaningful but diminishing returns. The max-threads score of 2713 is only 9.6% above the 8-thread result, confirming that the chip is fully utilized at 8 threads. In Cinebench R23, the multi-core score of 8082 is 7.1x the single-core score of 1141, which is a strong scaling ratio for a 4-core part. The R20 results (3394 multi-core vs 479 single-core) and R15 results (814 multi-core vs 114 single-core) both show the same 7.1x ratio, suggesting consistent performance across different workload lengths.

PassMark data reveals specific strengths: integer math at 31814 and floating-point math at 19221 indicate solid arithmetic performance, while data encryption at 5465 and extended instructions at 7406 show the chip handles security and SIMD workloads capably. The find prime numbers test scores just 34, which is a low number but typical for a CPU without specialized integer-heavy optimizations. Random string sorting scores 12625, and physics scores 577, both of which are moderate for the class. The multithread score of 9512 and single-thread score of 2640 align with the overall average of 9620, confirming that the chip is well-balanced. The data compression score of 103380 is notably high, suggesting the chip handles file compression tasks efficiently. Overall, the i5-1135G7 delivers performance that is competitive with its direct rivals, with margins of less than 2% in all cases, making it a solid choice for mainstream mobile computing.