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Key Differences
In short — Core i7-5820K outperforms the cheaper Pentium G645 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i7-5820K is 729 days newer than the cheaper Pentium G645.
Advantages of Intel Pentium G645
- Up to 90% cheaper than Core i7-5820K - $40.99 vs $429.95
- Consumes up to 54% less energy than Intel Core i7-5820K - 65 vs 140 Watts
- Works without a dedicated GPU, while Intel Core i7-5820K doesn't have integrated graphics
Advantages of Intel Core i7-5820K
- Performs up to 10% better in Watch Dogs: Legion than Pentium G645 - 137 vs 125 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Pentium G645 - 12 vs 2 threads
Watch Dogs: Legion
Resolution
1920 x 1080
Game Graphics
Ultra
Intel Pentium G645 Dual-Core Processor 2.9 Ghz 3 MB Cache LGA 1155 - BX80623G645
Buy for $40.99 on Amazon
In Stock
Updated 45 minutes ago
Intel CM8064801548435 CORE I7-5820K Processor (15M Cache, UP to 3.60 GHZ)
Buy for $429.95 on Amazon
In Stock
Updated 51 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Pentium G645
Desktop • Sep 2nd, 2012
Core i7-5820K
Desktop • Sep 1st, 2014
Geekbench 5 Benchmarks
Pentium G645
Desktop • Sep 2nd, 2012
Single-Core
465
40.08620689655172%
Multi-Core
800
14.697776961234613%
Intel Pentium G645 | vs | Intel Core i7-5820K |
|---|---|---|
| Sep 2nd, 2012 | Release Date | Sep 1st, 2014 |
| Pentium | Collection | Core i7 |
| Sandy Bridge | Codename | Haswell E |
| Intel Socket 1155 | Socket | Intel Socket 2011-3 |
Desktop | Segment | Desktop |
| 2 | Cores | 6 |
| 2 | Threads | 12 |
| 2.9 GHz | Base Clock Speed | 3.3 GHz |
| Non-Turbo | Turbo Clock Speed | 3.6 GHz |
65 W | TDP | 140 W |
| 32 nm | Process Size | 22 nm |
| 29.0x | Multiplier | 33.0x |
Intel HD (Sandy Bridge) | Integrated Graphics | None |
| No | Overclockable | Yes |
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