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CPU Comparison: FPS, Specs & Value

Core i5-8365U vs Xeon E5645

The Core i5-8365U is much faster than the Xeon E5645 on average across 100+ games. We cannot compare value as at least one CPU is out of stock.

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Up to 76% faster on average across 100+ games
Is 9 years and 3 months newer
Available for $297

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FPS Comparison Across Popular Games

Predicted average FPS at 1080p, 1440p, and 4K, based on real game benchmarks.

Resolution

Quality

Paired GPU

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Fortnite2017

Core i5-8365U

325FPS

Xeon E5645

329FPS

Overwatch 22023

Core i5-8365U

517FPS

Xeon E5645

525FPS

League of Legends2009

Core i5-8365U

196FPS

Xeon E5645

123FPS

Grand Theft Auto V2013

Core i5-8365U

201FPS

Xeon E5645

185FPS

Minecraft2011

Core i5-8365U

603FPS

Xeon E5645

575FPS

Valorant2020

575FPS

539FPS

503FPS

365FPS

Destiny 22017

Core i5-8365U

Xeon E5645

Specs & Benchmark Comparison

Side-by-side specs, synthetic benchmarks, and key hardware differences.

Scorehelp

Core i5-8365U

28%

Xeon E5645

Core i5-8365U ranks 22 points higher.

Coreshelp

Core i5-8365U

Xeon E5645

Xeon E5645 has 2 more cores.

Threadshelp

Core i5-8365U

Xeon E5645

Xeon E5645 has 4 more threads.

L3 Cachehelp

Core i5-8365U

6 MB

Xeon E5645

12 MB

Xeon E5645 has 6 MB more L3 cache.

Base Frequencyhelp

Core i5-8365U

1.6 GHz

Xeon E5645

2.4 GHz

Xeon E5645 has a 50% higher base clock.

Turbo Frequencyhelp

Core i5-8365U

4.1 GHz

Xeon E5645

2.666 GHz

Core i5-8365U boosts 54% higher.

TDPhelp

Core i5-8365U

15W

Xeon E5645

80W

Core i5-8365U draws 65W less power.

Pricehelp

Core i5-8365U

Xeon E5645

Core i5-8365UXeon E5645

Intel BGA 1528

Sockethelp

LGA1366

Whiskey Lake-U

Codenamehelp

Westmere-EP

Mobile

Segmenthelp

Server/Workstation

UHD Graphics 620

Integrated GPUhelp

No Integrated Graphics

2400 MHz (DDR4)

RAMhelp

DDR3

Not Overclockable

Overclock Supporthelp

Not Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Core i5-8365U or Xeon E5645?expand_more

The Core i5-8365U. It's 367% faster than the Xeon E5645 on average across 100+ games, scoring 28/100 vs 6/100 in our gaming rating.

speedHow much faster is Core i5-8365U than Xeon E5645?expand_more

367% faster on average. The gap varies by game and resolution, check the per-game FPS comparison above.

aspect_ratioWhich is better for 1440p and 4K gaming, Core i5-8365U or Xeon E5645?expand_more

The Core i5-8365U is faster at both resolutions. Toggle the resolution selector above to see per-game FPS.

paidIs the Core i5-8365U worth buying in 2026?expand_more

It scores 28/100 in our gaming rating, faster than most CPUs on the market. Good buy if the price is right.

differenceWhat is the difference between Core i5-8365U and Xeon E5645?expand_more

Performance: Core i5-8365U scores 28/100, Xeon E5645 scores 6/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.

compressWill the Core i5-8365U or Xeon E5645 bottleneck my PC?expand_more

Depends on the rest of your build, especially your GPU. Swap the paired GPU in the FPS section above to see if it limits performance, or use our bottleneck calculator for a full analysis.

upgradeIs it worth upgrading to the Core i5-8365U or Xeon E5645?expand_more

The Core i5-8365U is the stronger pick at 28/100. Compare your current CPU against it to see the exact FPS gain across 100+ games.