Intel Pentium G645T vs Core i3 2100 |
Released September, 2012
Intel Pentium G645T
- 2.5 GHz
- Dual core
Reasons to buy the Intel Pentium G645T
 | Much more l2 cache 1 MB | | Much lower typical power consumption 28.44W |
| | Much more l2 cache per core 0.5 MB/core | | Much lower annual home energy cost 8.43 $/year |
VS
Released January, 2011
Intel Core i3 2100
- 3.1 GHz
- Dual core
Reasons to buy the Core i3 2100
| | Much higher clock speed 3.1 GHz | | More threads 4 |
| | Much better overclocked clock speed (Air) 3.23 GHz | | Significantly higher Maximum operating temperature 69.1 °C |
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Differences What are the advantages of each
| |||||||
| Much more l2 cache | 1 MB | vs | 0.5 MB | 2x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
|---|---|---|---|---|---|---|---|
| Much lower typical power consumption | 28.44W | vs | 98.28W | 3.5x lower typical power consumption | |||
| Much more l2 cache per core | 0.5 MB/core | vs | 0.25 MB/core | 2x more l2 cache per core | |||
| Much lower annual home energy cost | 8.43 $/year | vs | 37.88 $/year | 4.5x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 30.66 $/year | vs | 93.47 $/year | 3x lower annual commercial energy cost | |||
| Newer | Sep, 2012 | vs | Jan, 2011 | Release date over 1 years later | |||
| |||||||
| Much higher clock speed | 3.1 GHz | vs | 2.5 GHz | Around 25% higher clock speed | |||
| More threads | 4 | vs | 2 | Twice as many threads | |||
| Much better overclocked clock speed (Air) | 3.23 GHz | vs | 2.5 GHz | Around 30% better overclocked clock speed (Air) | |||
| Significantly higher Maximum operating temperature | 69.1 °C | vs | 65 °C | More than 5% higher Maximum operating temperature | |||
| Much better overclocked clock speed (Water) | 3.23 GHz | vs | 2.5 GHz | Around 30% better overclocked clock speed (Water) | |||
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Benchmarks Real world tests of Pentium G645T vs Core i3 2100
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Pentium G645T | vs | Core i3 2100 |
|---|---|---|---|
| Clock speed | 2.5 GHz | 3.1 GHz | |
| Cores | Dual core | Dual core | |
| Socket type | |||
| LGA 1155 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | No | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| AVX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 35W | 65W | |
| Annual home energy cost | 8.43 $/year | 37.88 $/year | |
| Annual commercial energy cost | 30.66 $/year | 93.47 $/year | |
| Performance per watt | 3.81 pt/W | 1.41 pt/W | |
| Typical power consumption | 28.44W | 98.28W | |
bus | |||
| Architecture | DMI | DMI | |
| Number of links | 1 | 1 | |
| Transfer rate | 5,000 MT/s | 5,000 MT/s | |
details | Pentium G645T | vs | Core i3 2100 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 2 | 4 | |
| L2 cache | 1 MB | 0.5 MB | |
| L2 cache per core | 0.5 MB/core | 0.25 MB/core | |
| L3 cache | 3 MB | 3 MB | |
| L3 cache per core | 1.5 MB/core | 1.5 MB/core | |
| Manufacture process | 32 nm | 32 nm | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 25 | 31 | |
| Operating temperature | Unknown - 65°C | Unknown - 69.1°C | |
overclocking | |||
| Overclocked clock speed | 2.5 GHz | 3.23 GHz | |
| Overclocked clock speed (Water) | 2.5 GHz | 3.23 GHz | |
| Overclocked clock speed (Air) | 2.5 GHz | 3.23 GHz | |
integrated graphics | |||
| GPU | GPU | GPU | |
| Label | Intel® HD Graphics | Intel® HD Graphics 2000 | |
| Number of displays supported | 2 | 2 | |
| GPU clock speed | 650 MHz | 850 MHz | |
| Turbo clock speed | 1,100 MHz | 1,100 MHz | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3 | |||
| Channels | Dual Channel | Dual Channel | |
| Maximum bandwidth | 17,066.66 MB/s | 21,333.32 MB/s | |
| Maximum memory size | 32,768 MB | 32,768 MB | |
 Intel Pentium G645T  Report a correction |  Intel Core i3 2100 Report a correction |
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