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The Pentium G645 is at least 2x slower gaming CPU than the Core i9-12900K, it's also the same value for money, as it's only $203.01 cheaper!

Advantages of the Pentium G645

  • Up to 83% cheaper$40.99 vs $244.00
  • Consumes up to 48% less energy65 vs 125 Watts

Advantages of the Core i9-12900K

  • At least 2x faster CPU for gaming
  • Can execute more multi-threaded tasks simultaneously – 24 vs 2 threads

Pentium G645 vs Core i9-12900K for Gaming

The CPU's performance in selected game and settings

Pentium G645 vs Core i9-12900K in My Games

The FPS you'll get in saved games, click on a game to change it

The FPS you'll get in saved games, click on a game to change it

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Synthetic Benchmarks

The Pentium G645 vs Core i9-12900K in synthetic CPU benchmarks

Intel Pentium G645 Logo

Pentium G645

Sep 2nd, 2012


Geekbench 6 Single-Core

454

17%

Geekbench 6 Multi-Core

773

5%

Intel Core i9-12900K Logo

Core i9-12900K

Nov 4th, 2021


Geekbench 6 Single-Core

2642

100%

Geekbench 6 Multi-Core

15520

100%

Performance Specifications

The Pentium G645 vs Core i9-12900K in core CPU performance specifications

Intel Pentium G645 Logo

Pentium G645

Sep 2nd, 2012


Cores

2-core

12%

L3 Cache

3 MB

10%


Base Frequency

2.9 GHz

91%

Turbo Frequency

GHz

Max. DDR3 RAM Speed

MHz

Intel Core i9-12900K Logo

Core i9-12900K

Nov 4th, 2021


Cores

16-core

100%

L3 Cache

30 MB

100%


Base Frequency

3.2 GHz

100%

Turbo Frequency

5.2 GHz

100%

Max. DDR5 RAM Speed

4800 MHz

100%

Specifications

Comparison of all specifications

Intel Pentium G645 Logo

Pentium G645

Specifications

Comparison of all specifications

Intel Core i9-12900K Logo

Core i9-12900K

Sep 2nd, 2012
Nov 4th, 2021
Not Available$599.00
Desktop
Desktop
Intel Socket 1155Intel Socket 1700
Sandy BridgeAlder Lake
65 W
125 W
2
16
2
24
2.9 GHz
3.2 GHz
Non-Turbo5.2 GHz
3 MB
30 MB
DDR3DDR4 @ 3200 MHz, DDR5 @ 4800 MHz
Intel HD (Sandy Bridge)UHD Graphics 770
No
Yes

Prebuilt Gaming PCs

Our users choose these PCs when going for the Pentium G645 or Core i9-12900K

Our users choose these PCs when going for the Pentium G645 or Core i9-12900K

Pentium G645 and Core i9-12900K vs Other CPUs

The most compared CPUs against the Pentium G645 and Core i9-12900K

The most compared CPUs against the Pentium G645 and Core i9-12900K

CPUs Compared for Gaming

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