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GeForce 9600 GSO ASUS 512 vs GeForce GT 640 DDR3

Intro

The GeForce 9600 GSO ASUS 512 uses a 65 nm design. nVidia has set the core frequency at 550 MHz. The DDR2 RAM is set to run at a speed of 500 MHz on this particular model. It features 96 SPUs along with 48 Texture Address Units and 12 Rasterization Operator Units.

Compare those specifications to the GeForce GT 640 DDR3, which has core speeds of 900 MHz on the GPU, and 1782 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3 65 Watts
GeForce 9600 GSO ASUS 512 84 Watts
Difference: 19 Watts (29%)

Memory Bandwidth

The GeForce GT 640 DDR3 should in theory perform much faster than the GeForce 9600 GSO ASUS 512 in general. (explain)

GeForce GT 640 DDR3 57024 MB/sec
GeForce 9600 GSO ASUS 512 16000 MB/sec
Difference: 41024 (256%)

Texel Rate

The GeForce GT 640 DDR3 should be just a bit (about 9%) better at AF than the GeForce 9600 GSO ASUS 512. (explain)

GeForce GT 640 DDR3 28800 Mtexels/sec
GeForce 9600 GSO ASUS 512 26400 Mtexels/sec
Difference: 2400 (9%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 640 DDR3 is the winner, and very much so. (explain)

GeForce GT 640 DDR3 14400 Mpixels/sec
GeForce 9600 GSO ASUS 512 6600 Mpixels/sec
Difference: 7800 (118%)

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

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GeForce 9600 GSO ASUS 512

Amazon.com

Check prices at:

GeForce GT 640 DDR3

Amazon.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.

Specifications

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Model GeForce 9600 GSO ASUS 512 GeForce GT 640 DDR3
Manufacturer nVidia nVidia
Year September 2008 June 2012
Code Name G92 GK107
Memory 512 MB 2048 MB
Core Speed 550 MHz 900 MHz
Memory Speed 1000 MHz 3564 MHz
Power (Max TDP) 84 watts 65 watts
Bandwidth 16000 MB/sec 57024 MB/sec
Texel Rate 26400 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 96 384
Texture Mapping Units 48 32
Render Output Units 12 16
Bus Type DDR2 DDR3
Bus Width 128-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 754 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 maximum amount of data (measured in megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9600 GSO ASUS 512

Amazon.com

Check prices at:

GeForce GT 640 DDR3

Amazon.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.

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