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GPUBoss Review Our evaluation of the GeForce GT 645 among Desktop GPUs
Gaming | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more | |
Graphics | |
| | |
| T-Rex, Manhattan, Cloud Gate Factor, Sky Diver Factor and 1 more | |
Computing | |
| | |
| Face Detection, Ocean Surface Simulation and 3 more | |
Performance per Watt | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more | |
Value | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more | |
Noise and Power | |
| | |
| TDP, Idle Power Consumption, Load Power Consumption and 2 more | |
| 6.8 | Overall Score |
| | |
Benchmarks Real world tests of the GeForce GT 645
PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark
3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance
3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance
3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance
Fire Strike Factor Data courtesy FutureMark
Sky Diver Factor Data courtesy FutureMark
Cloud Gate Factor Data courtesy FutureMark
PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute
Specifications Full list of technical specs
gpu
| GPU brand | Nvidia |
|---|---|
| GPU name | GF114 |
| Market | Desktop |
| Clock speed | 776 MHz |
| Is dual GPU | No |
| Reference card | None |
raw performance
| Shading units | 288 |
|---|---|
| Texture mapping units | 48 |
| Render output processors | 24 |
| Pixel rate | 9.31 GPixel/s |
| Texture rate | 37.2 GTexel/s |
| Floating-point performance | 894 GFLOPS |
memory
| Memory clock speed | 957 MHz |
|---|---|
| Effective memory clock speed | 3,828 MHz |
| Memory bus | 192 bit |
| Memory | 1,024 MB |
| Memory type | GDDR5 |
| Memory bandwidth | 91.9 GB/s |
noise and power
| TDP | 102W |
|---|
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Competitors
 | Nvidia GeForce GTX 660
|
 | SPARKLE GeForce GTX 580
|
 | Colorful GeForce GTX 650
|
 | |
 | Nvidia GeForce GT 635
|
 | |
 | Nvidia GeForce GTX 645
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