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CPU Comparison: FPS, Specs & Value

Xeon E3-1226 v3 vs Xeon E5-2666 v3

The Xeon E3-1226 v3 is slightly faster than the Xeon E5-2666 v3 on average across 100+ games. We cannot compare value as at least one CPU is out of stock.

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CPU

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Up to 2% faster on average across 100+ games
Available for $213

CPU

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Is 6 months newer

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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Grand Theft Auto V2013

Xeon E3-1226 v3

199FPS

Xeon E5-2666 v3

199FPS

League of Legends2009

184FPS

182FPS

484FPS

481FPS

Escape From Tarkov2017

Xeon E3-1226 v3

215FPS

Xeon E5-2666 v3

214FPS

Valorant2020

Xeon E3-1226 v3

567FPS

Xeon E5-2666 v3

565FPS

Minecraft2011

Xeon E3-1226 v3

595FPS

Xeon E5-2666 v3

593FPS

Call of Duty: Warzone 2.02020

Xeon E3-1226 v3

234FPS

Xeon E5-2666 v3

235FPS

Dota 22013

Xeon E3-1226 v3

179FPS

Xeon E5-2666 v3

179FPS

Specs & Benchmark Comparison

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

Scorehelp

Xeon E3-1226 v3

33%

Xeon E5-2666 v3

33%

Similar overall gaming performance.

Coreshelp

Xeon E3-1226 v3

Xeon E5-2666 v3

Xeon E5-2666 v3 has 6 more cores.

Threadshelp

Xeon E3-1226 v3

Xeon E5-2666 v3

Xeon E5-2666 v3 has 16 more threads.

L3 Cachehelp

Xeon E3-1226 v3

8 MB

Xeon E5-2666 v3

25 MB

Xeon E5-2666 v3 has 17 MB more L3 cache.

Base Frequencyhelp

Xeon E3-1226 v3

3.3 GHz

Xeon E5-2666 v3

2.9 GHz

Xeon E3-1226 v3 has a 14% higher base clock.

Turbo Frequencyhelp

Xeon E3-1226 v3

3.7 GHz

Xeon E5-2666 v3

3.5 GHz

Xeon E3-1226 v3 boosts 6% higher.

TDPhelp

Xeon E3-1226 v3

84W

Xeon E5-2666 v3

135W

Xeon E3-1226 v3 draws 51W less power.

Pricehelp

Xeon E3-1226 v3

Xeon E5-2666 v3

Xeon E3-1226 v3Xeon E5-2666 v3

LGA1150

Sockethelp

LGA2011-3

Haswell-WS

Codenamehelp

Haswell-EP

Server/Workstation

Segmenthelp

Server/Workstation

Intel HD P4600

Integrated GPUhelp

No Integrated Graphics

1600 MHz (DDR3)

RAMhelp

2133 MHz (DDR3), 2133 MHz (DDR4)

Not Overclockable

Overclock Supporthelp

Not Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Xeon E3-1226 v3 or Xeon E5-2666 v3?expand_more

Neither, they're within 1% of each other across 100+ games. Pick based on price, availability, or platform compatibility.

aspect_ratioWhich is better for 1440p and 4K gaming, Xeon E3-1226 v3 or Xeon E5-2666 v3?expand_more

They trade blows depending on the game. Toggle the resolution selector above to compare per-game FPS at 1440p and 4K.

differenceWhat is the difference between Xeon E3-1226 v3 and Xeon E5-2666 v3?expand_more

Performance: Xeon E3-1226 v3 scores 32/100, Xeon E5-2666 v3 scores 31/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.

compressWill the Xeon E3-1226 v3 or Xeon E5-2666 v3 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 Xeon E3-1226 v3 or Xeon E5-2666 v3?expand_more

Both are solid choices. Compare your current CPU against each one to see the exact FPS gain.