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| 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
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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 | |||
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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) |
Benchmarks Real world tests of Pentium G645T vs Core i3 2100
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Pentium G645T
3,126
Core i3 2100
4,786
GeekBench 3 (Single core) Data courtesy Primate Labs
Pentium G645T
1,742
Core i3 2100
2,258
GeekBench 3 (AES single core) Data courtesy Primate Labs
Pentium G645T
124,300 MB/s
Core i3 2100
153,100 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Pentium G645T
3,035
Core i3 2100
4,738
GeekBench
Pentium G645T
3,035
Core i3 2100
7,901
PassMark Data courtesy Passmark
Pentium G645T
2,313
Core i3 2100
3,664
PassMark (Single Core)
Pentium G645T
1,279
Core i3 2100
1,583
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 ![]() | Intel Core i3 2100 ![]() |
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