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GeForce 9600 GT 1GB vs GeForce GT 640 DDR3
Intro
The GeForce 9600 GT 1GB comes with a GPU core clock speed of 650 MHz, and the 1024 MB of GDDR3 memory is set to run at 900 MHz through a 256-bit bus. It also is made up of 64 SPUs, 32 Texture Address Units, and 16 ROPs.Compare those specifications to the GeForce GT 640 DDR3, which has GPU core speed of 900 MHz, and 2048 MB of DDR3 memory set to run at 1782 MHz through a 128-bit bus. It also features 384 Stream Processors, 32 TAUs, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 640 DDR3 |
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65 Watts |
| GeForce 9600 GT 1GB |
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95 Watts |
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Memory Bandwidth
Theoretically speaking, the GeForce 9600 GT 1GB is 1% quicker than the GeForce GT 640 DDR3 overall, due to its higher bandwidth. (explain)
| GeForce 9600 GT 1GB |
|
57600 MB/sec |
| GeForce GT 640 DDR3 |
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57024 MB/sec |
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Texel Rate
The GeForce GT 640 DDR3 is much (approximately 38%) faster with regards to AF than the GeForce 9600 GT 1GB. (explain)| GeForce GT 640 DDR3 |
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28800 Mtexels/sec |
| GeForce 9600 GT 1GB |
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20800 Mtexels/sec |
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Pixel Rate
The GeForce GT 640 DDR3 will be much (about 38%) better at anti-aliasing than the GeForce 9600 GT 1GB, and also should be capable of handling higher resolutions better. (explain)| GeForce GT 640 DDR3 |
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14400 Mpixels/sec |
| GeForce 9600 GT 1GB |
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10400 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
GeForce 9600 GT 1GBAmazon.com
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GeForce GT 640 DDR3Amazon.com
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Specifications
| Model | GeForce 9600 GT 1GB | GeForce GT 640 DDR3 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | Feb 2008 | June 2012 |
| Code Name | G94a/b | GK107 |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 650 MHz | 900 MHz |
| Memory Speed | 1800 MHz | 3564 MHz |
| Power (Max TDP) | 95 watts | 65 watts |
| Bandwidth | 57600 MB/sec | 57024 MB/sec |
| Texel Rate | 20800 Mtexels/sec | 28800 Mtexels/sec |
| Pixel Rate | 10400 Mpixels/sec | 14400 Mpixels/sec |
| Unified Shaders | 64 | 384 |
| Texture Mapping Units | 32 | 32 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | DDR3 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 65/55 nm | 28 nm |
| Transistors | 505 million | 1300 million |
| Bus | PCIe x16 2.0 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10 | DirectX 11.0 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.
GeForce 9600 GT 1GBAmazon.com
Check prices at:
|
GeForce GT 640 DDR3Amazon.com
Check prices at:
|
Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
|
Comments
2 Responses to “GeForce 9600 GT 1GB vs GeForce GT 640 DDR3”I have a 2009 Mac Book Pro that has a GT9600 graphics card. Comparing it to the newer GT640 I wondered if the difference in performance justified the expense in switching. Evidently not. I am mainly into digital graphics and beginning photography.
Na minha opiniao gt 640 e melhor no geral.