Head-to-head used CPU value

Intel Celeron G5900 vs Intel Core i5-6600K

Intel Core i5-6600K currently offers better used gaming performance per dollar. Intel Core i5-6600K is about 1% faster in the tracked relative gaming score.

Prices updated Sep 30, 2026
Used price differenceIntel Core i5-6600K is 48.6% lower
Gaming differenceIntel Core i5-6600K is 1% higher
Value differenceIntel Core i5-6600K is 96.4% higher

Which CPU Should You Buy?

Gaming value, productivity, and total platform cost can point to different winners.

Best Gaming Value

Intel Core i5-6600K currently provides more tracked gaming performance per used dollar. Recheck the live prices before buying because a small market move can change the winner.

Productivity And Core Workloads

Intel Core i5-6600K is about 54.1% faster in the tracked Cinebench R23 multi-core result. Core count, cooling, and application behavior still affect real workloads.

Platform And Upgrade Cost

Both processors use FCLGA1200, so an in-socket upgrade may be possible with the right BIOS support. Intel Celeron G5900 has a 33 W lower tracked TDP.

Price, Benchmark And Platform Comparison

Used price uses the latest median, then the 25th percentile or minimum as fallback.

MetricIntel Celeron G5900Intel Core i5-6600K
Current used price$35$17.99
Current new price$49.42$50.34
Relative gaming performance3838
Gaming performance per dollar1.0722.105
Cinebench R23 multi2,2393,450
Cinebench R23 single1,1871,059
Cores / threads2 / 24 / 4
SocketFCLGA1200-
TDP58 W91 W
Release year20202015
Qualified sales257
Full valuation

Intel Celeron G5900

Open price history, fair value range, confidence, and complete specifications.

Full valuation

Intel Core i5-6600K

Open price history, fair value range, confidence, and complete specifications.

Build-level estimate

PC Value Calculator

Estimate what a complete gaming PC containing either processor may be worth.