Intel Pentium G2020 vs Intel Pentium G645

Compare Intel Pentium G Series 2 core CPU vs Intel Pentium 2 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Specifications
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Intel Pentium G645

Price

The cheapest price from our partner retailers

$ 34.99

$ 47.01 significantly less expensive

$ 82.00

Benchmark Score

Overall Score

A combined score of all workloads

934 points

951 points

1% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

2034 points

2076 points

2% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

666 points

679 points

1% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

640 points

653 points

2% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

Geekbench 5 (multi) score

Multi threaded benchmark

802 points

944 points

17% slightly higher Geekbench 5 (multi) score

Geekbench 5 (single) score

Single threaded benchmark

474 points

514 points

8% slightly higher Geekbench 5 (single) score

Geekbench 6 (multi) score

Multi threaded benchmark

817 points

11% slightly higher Geekbench 6 (multi) score

732 points

Geekbench 6 (single) score

Single threaded benchmark

476 points

5% slightly higher Geekbench 6 (single) score

451 points

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

Identical

Clock Speed

Base frequency at which the chip operates

2.9 GHz

Identical

2.9 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

55 W

18% slightly lower TDP

65 W

Memory Channels

Lanes for simultaneous memory access

Identical

Supported Memory

Maximum amount of RAM supported by this CPU

32 GiB

Identical

32 GiB

Other details

Rank

Ranking in the hardwareDB database

972nd of 1,089

966th of 1,089

Family

The product line

Pentium G Series

Pentium

Release date

The official date of release of this chip

2013 February

2012 August

Memory Type

The type of memory used by this chip

DDR3-1333

DDR3-1066

Supports ECC memory

Does this CPU support error correcting memory

Yes

Pentium G2020 vs Pentium G645 specs and performance

In our benchmarks, the Pentium G645 beats the Pentium G2020 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Pentium G2020 in all gaming tests too.

When comparing these CPUs we notice that they have the same number of cores and the same number of threads. Both the Pentium G2020 and Pentium G645 have the same clock speed. A Pentium G2020 CPU outputs less heat than a Pentium G645 CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. For instance, the Pentium G2020 has the same number of threads as cores. This means the the CPU does not support hyperthreading.