Intel Core i5-7500 vs Intel Core i5-8365U Comparison

The Verdict

The benchmark data splits this comparison almost down the middle, but the direction of the wins tells the real story. The Intel Core i5-7500 takes 14 of 17 head-to-head tests, including every Cinebench R15, R20, and R23 run, both single-core and multi-core. The Intel Core i5-8365U wins only 3 tests, but those wins are concentrated in workloads where its 8 threads can be exploited: data encryption, integer math, and random string sorting.

For users needing a desktop workhorse with consistent performance across rendering, compression, and legacy instruction workloads, the Core i5-7500 is the clear pick. It edges ahead in nearly every mainstream productivity benchmark, often by small but consistent margins. For mobile users who prioritize encryption throughput and integer-heavy parallel workloads, the Core i5-8365U offers a compelling counterpoint, though its overall benchmark average trails the desktop part.

The database places the Core i5-8365U at the 65th percentile of all CPUs, with an average benchmark score of 8708. The Core i5-7500 sits at the 64th percentile with an average score of 8208. Despite the mobile chip's higher percentile ranking, the desktop chip's closest rivals include the Intel Core i3-8100 at a 1% delta, while the mobile chip's nearest rivals include the Intel Core i7-8565U at a 0.5% delta. The data suggests the 8365U's average is buoyed by its strong parallel performance, while the 7500 delivers more consistent results across the board.

Architecture Differences

The two processors represent different Intel design philosophies from different eras. The Core i5-8365U uses the Whiskey Lake architecture, specifically the Whiskey Lake-U codename, built on a 14 nm process. It is a mobile part with a 15 W TDP, housed in the Intel BGA 1528 socket. The Core i5-7500 uses the Kaby Lake architecture with the Kaby Lake codename, also on 14 nm, but it is a desktop part with a 65 W TDP, housed in the Intel Socket 1151.

The core counts are identical at 4 physical cores, but the threading strategy diverges sharply. The 8365U supports 8 threads via Hyper-Threading, while the 7500 is limited to 4 threads with no simultaneous multithreading. This explains why the mobile chip wins in integer math and encryption, workloads that scale with thread count. The cache hierarchy is identical: 64 KB L1 per core, 256 KB L2 per core, and 6 MB shared L3.

The clock speeds tell a different story. The 8365U has a base clock of 1600 MHz and a boost clock of 4.10 GHz. The 7500 has a base clock of 3.40 GHz and a boost clock of 3.80 GHz. The desktop chip starts much higher and boosts lower, while the mobile chip starts very low but reaches a higher peak. This reflects the power envelope difference: the 15 W mobile part must idle low to stay within thermal limits, while the 65 W desktop part can sustain higher clocks throughout.

Both use DDR4 memory with dual-channel support and 38.4 GB/s bandwidth. Both lack ECC memory support. Both use PCIe Gen 3 with 16 lanes from the CPU. The integrated graphics differ: the 8365U has UHD Graphics 620, while the 7500 has HD 630. The 8365U was released in April 2019 and is marked end-of-life, while the 7500 was released in January 2017 and remains active in production. The 8365U carries a launch MSRP of $297.

Head-to-Head Benchmarks

The Cinebench results show a consistent pattern of narrow victories for the Core i5-7500. In Cinebench R15 multi-core, the 7500 scores 517 against the 8365U's 509, a 1.5% lead. Single-core R15 shows 72 versus 71, a 1.4% edge. R20 multi-core shows 2155 versus 2121, a 1.6% lead, and R20 single-core shows 304 versus 299, also 1.6%. R23 multi-core shows 5133 versus 5050, again 1.6%, and R23 single-core shows 724 versus 713, a 1.5% margin. These are small but consistent gaps, suggesting the desktop chip's higher base clock provides a steady advantage in rendering workloads, even when the mobile chip's 8 threads should theoretically help in multi-core tests.

The PassMark suite reveals where the 8365U's extra threads pay dividends. The most dramatic win is in integer math, where the 8365U scores 22021 against the 7500's 15768, a 39.7% blowout. This is the largest delta in the entire comparison. Data encryption also favors the mobile chip: 2006 versus 1817, a 10.4% lead. Random string sorting goes to the 8365U by a narrow 1.2% margin: 10256 versus 10134.

The 7500 dominates the remaining PassMark tests. Extended instructions show a 27.2% lead for the desktop chip: 6971 versus 5074. Find prime numbers favors the 7500 by 32.1%: 28 versus 19. Data compression shows an 8.4% advantage: 83250 versus 76239. Physics favors the desktop chip by 10.4%: 471 versus 422. Single-thread performance shows an 8% lead: 2253 versus 2073. Floating point math is nearly tied, with the 7500 ahead by just 0.5%: 13174 versus 13110. Multithread performance is close too, with the 7500 ahead by 0.9%: 6028 versus 5976.

The pattern is clear: the 8365U wins where thread count matters most, while the 7500 wins in nearly everything else, often by substantial margins in instruction-heavy and single-threaded workloads. The 7500's single-thread score of 2253 versus 2073 highlights the advantage of a 3.40 GHz base clock versus the 8365U's 1600 MHz base.

Specification Differences

The two processors differ in several key specifications. The 8365U has 8 threads against the 7500's 4 threads. The 8365U has a base clock of 1600 MHz against 3.40 GHz for the 7500. The 8365U boosts to 4.10 GHz against 3.80 GHz for the 7500. The 8365U has a TDP of 15 W against 65 W for the 7500. The 8365U uses the Intel BGA 1528 socket, while the 7500 uses Intel Socket 1151.

The architectures differ: Whiskey Lake-U versus Kaby Lake. The integrated graphics differ: UHD Graphics 620 versus HD 630. The market segments differ: Mobile versus Desktop. The production status differs: End-of-life versus Active. The release dates differ: April 2019 versus January 2017. The part numbers differ: SRF9Z versus SR335. The 8365U has a launch MSRP of $297, while the 7500 has no recorded launch MSRP.

The specifications that match are worth noting: both have 4 cores, 14 nm process, 64 KB L1 per core, 256 KB L2 per core, 6 MB shared L3, DDR4 memory support, dual-channel memory bus, 38.4 GB/s memory bandwidth, no ECC support, PCIe Gen 3 with 16 lanes, and both lack an unlocked multiplier.

FAQ

Q: Which processor wins more benchmark tests?

A: The Intel Core i5-7500 wins 14 of 17 head-to-head benchmarks, while the Intel Core i5-8365U wins 3.

Q: Where does the Core i5-8365U outperform the Core i5-7500?

A: The 8365U wins in PassMark integer math by 39.7% (22021 versus 15768), data encryption by 10.4% (2006 versus 1817), and random string sorting by 1.2% (10256 versus 10134).

Q: How do the two processors compare in Cinebench R23?

A: In multi-core, the 7500 scores 5133 against the 8365U's 5050, a 1.6% lead. In single-core, the 7500 scores 724 against 713, a 1.5% lead.

Q: Why does the Core i5-7500 win in single-threaded tests despite a lower boost clock?

A: The 7500 has a base clock of 3.40 GHz versus the 8365U's 1600 MHz. Its single-thread PassMark score is 2253 against 2073, an 8% advantage.

Q: What are the thread count differences between the two chips?

A: The 8365U has 8 threads from 4 cores, while the 7500 has 4 threads from 4 cores. This explains the 8365U's wins in integer math and encryption.

Q: Which processor has a higher overall benchmark average?

A: The 8365U has an average benchmark score of 8708 and sits at the 65th percentile of all CPUs. The 7500 has an average score of 8208 and sits at the 64th percentile.