Intel Core i5-8500 vs Intel Core i5-9500 Comparison

The Intel Core i5-9500 and Intel Core i5-8500 are a study in generational refinement, presenting a nearly identical specification sheet that yields a fascinating split in benchmark results. While the newer i5-9500 secures a decisive victory in overall win count, the i5-8500 paradoxically dominates the entire Cinebench suite. The data shows that the i5-8500’s average benchmark score of 13142 places it in the 68th percentile of all CPUs, a figure the i5-9500 matches, although its higher average score of 13452 pushes it slightly ahead. This is not a straightforward upgrade; it is a trade-off where the choice depends entirely on whether a user prioritizes the i5-9500’s wider spread of application wins or the i5-8500’s specific rendering strengths.

The Verdict

The data presents a clear, if counterintuitive, recommendation. For users whose primary workload is 3D rendering or content creation heavily reliant on Cinebench-style multi-threaded performance, the Intel Core i5-8500 is the definitive choice. The benchmark results are unambiguous: the i5-8500 leads in every Cinebench test, from the R15 multicore score of 814 (a 4.7% advantage over the i5-9500’s 776) to the R23 multicore score of 8079 (a 4.6% lead over 7705). Its single-core Cinebench scores also consistently outpace the i5-9500 by roughly 4.4% to 4.6%.

Conversely, the Intel Core i5-9500 is the better all-rounder for general productivity and everyday computing. It wins 12 of the 19 head-to-head benchmarks, including a dominant 13.7% lead in Geekbench multicore (5402 vs 4752) and a 7.9% lead in Geekbench singlecore (1448 vs 1342). It also demonstrates consistent, if smaller, advantages in the Passmark suite, including integer math (27574 vs 26551), floating-point math (23788 vs 22489), and single-thread performance (2565 vs 2441). The i5-8500’s launch MSRP was $192, but that is the only price data available; the i5-9500 has no launch MSRP listed. Ultimately, the i5-9500 is the safer recommendation for a general-purpose desktop, while the i5-8500 is the specialist’s pick for rendering tasks.

Architecture Differences

At their core, these two processors are architectural siblings, but with key differences in their execution. Both are built on Intel’s Coffee Lake architecture and a 14 nm process node. They share the same socket (Intel Socket 1151), a 65 W TDP, and identical cache configurations: 64 KB of L1 cache per core, 256 KB of L2 cache per core, and a shared 9 MB L3 cache. Both support dual-channel DDR4 memory with a bandwidth of 42.7 GB/s, and neither supports ECC memory. They also both feature Gen 3 PCIe with 16 lanes (CPU only) and are equipped with integrated graphics, the i5-9500 with UHD 630 and the i5-8500 with UHD Graphics 630.

The crucial differences lie in the clock speeds and the specific generation label. The i5-8500, part of the original "Coffee Lake" generation, has a base clock of 3.00 GHz and a boost clock of 4.10 GHz. The i5-9500, belonging to the "Coffee Lake Refresh" generation, maintains the same 3.00 GHz base clock but increases the boost clock to 4.30 GHz. This 200 MHz boost advantage is likely what drives the i5-9500’s superior Geekbench and Passmark single-thread scores. Interestingly, the i5-8500 has a documented die size of 154 mm², while the i5-9500’s die size is not listed. Both are end-of-life products with locked multipliers, and neither has a transistor count listed in the data.

Where Each One Wins

The benchmark data splits these two CPUs into distinct usage profiles. The i5-8500’s territory is clearly the Cinebench rendering suite. It wins the R15 multicore (814 vs 776), R15 singlecore (114 vs 109), R20 multicore (3393 vs 3236), R20 singlecore (478 vs 456), R23 multicore (8079 vs 7705), and R23 singlecore (1140 vs 1087) tests. It also narrowly wins the Passmark physics test (628 vs 619). This pattern suggests an advantage in tasks that are heavily averse to the slight architectural changes or thermal behavior of the refresh, making it the pick for dedicated rendering workloads.

The i5-9500 wins nearly everywhere else, establishing dominance in general-purpose and system-level performance. Its largest victory is a 13.7% margin in Geekbench multicore, showing a significant advantage in a broader, more diverse multi-threaded workload. It also wins Geekbench singlecore by 7.9%. In the Passmark suite, it shows consistent wins in data compression (136283 vs 134673), data encryption (3125 vs 3027), extended instructions (12088 vs 11480), floating-point math (23788 vs 22489), integer math (27574 vs 26551), multithread (9826 vs 9532), random string sorting (16894 vs 16294), and single-thread performance (2565 vs 2441). This makes the i5-9500 the better choice for everyday applications, office work, and general multitasking.

FAQ

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

A: The data is split. The i5-8500 wins all Cinebench single-core tests (R15, R20, R23) by roughly 4.4-4.6%, but the i5-9500 wins Geekbench singlecore (1448 vs 1342, a 7.9% lead) and Passmark single-thread (2565 vs 2441, a 5.1% lead).

Q: Is the i5-9500 a better multi-threaded processor?

A: It depends on the test. The i5-8500 wins every Cinebench multicore test, but the i5-9500 wins Geekbench multicore by a significant 13.7% (5402 vs 4752) and Passmark multithread by 3.1% (9826 vs 9532).

Q: Which CPU has a higher boost clock?

A: The i5-9500 has a boost clock of 4.30 GHz, while the i5-8500 has a boost clock of 4.10 GHz.

Q: Do they have the same amount of cache?

A: Yes, both processors have an identical cache layout: 64 KB of L1 per core, 256 KB of L2 per core, and 9 MB of shared L3 cache.

Q: Which processor has more benchmark wins overall?

A: The i5-9500 wins 12 of the 19 head-to-head benchmarks, while the i5-8500 wins 7.

Q: What is the average benchmark score for each?

A: The i5-9500 has an average benchmark score of 13452, and the i5-8500 has an average benchmark score of 13142.

Head-to-Head Benchmarks

The most striking result is the complete inversion of expected performance based on clock speed. Despite the i5-9500’s higher 4.30 GHz boost clock, the i5-8500 dominates the Cinebench suite. The largest Cinebench margin is a 4.7% win for the i5-8500 in Cinebench R15 multicore (814 vs 776). This pattern repeats with near-identical deltas of -4.6% in Cinebench R20 multicore (3393 vs 3236) and Cinebench R23 multicore (8079 vs 7705). The single-core Cinebench results follow suit, with the i5-8500 leading by 4.4% in R15 (114 vs 109) and 4.6% in both R20 (478 vs 456) and R23 (1140 vs 1087).

The i5-9500’s biggest win is its 13.7% margin in Geekbench multicore, a stark contrast to its Cinebench losses. This is followed by a 7.9% win in Geekbench singlecore (1448 vs 1342) and a 5.8% win in Passmark floating-point math (23788 vs 22489). In the remaining Passmark tests, the i5-9500 shows a consistent, moderate advantage: 5.3% in extended instructions (12088 vs 11480), 5.1% in both single-thread tests (2565 vs 2441), 3.9% in integer math (27574 vs 26551), 3.7% in random string sorting (16894 vs 16294), 3.2% in data encryption (3125 vs 3027), 3.1% in multithread (9826 vs 9532), and 1.2% in data compression (136283 vs 134673). The only other win for the i5-8500 outside Cinebench is a narrow 1.4% victory in Passmark physics (628 vs 619). The Passmark find prime numbers test is a perfect tie at 36 points for both. This data paints a picture of the i5-9500 as the more versatile performer, winning a broad range of workloads, while the i5-8500 possesses a specific, powerful edge in Cinebench rendering tasks that cannot be ignored.