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GeForce GT 130 vs GeForce GT 320

Intro

The GeForce GT 130 features clock speeds of 500 MHz on the GPU, and 250 MHz on the 768 MB of DDR2 RAM. It features 48 SPUs as well as 24 TAUs and 16 ROPs.

Compare all that to the GeForce GT 320, which features a core clock frequency of 540 MHz and a GDDR3 memory speed of 790 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It features 72 SPUs, 24 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
GeForce GT 130 75 Watts
Difference: 32 Watts (74%)

Memory Bandwidth

Performance-wise, the GeForce GT 320 should in theory be a lot superior to the GeForce GT 130 in general. (explain)

GeForce GT 320 25280 MB/sec
GeForce GT 130 12000 MB/sec
Difference: 13280 (111%)

Texel Rate

The GeForce GT 320 is just a bit (approximately 8%) more effective at anisotropic filtering than the GeForce GT 130. (explain)

GeForce GT 320 12960 Mtexels/sec
GeForce GT 130 12000 Mtexels/sec
Difference: 960 (8%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 130 is superior to the GeForce GT 320, by a large margin. (explain)

GeForce GT 130 8000 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 3680 (85%)

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 GT 130

Amazon.com

Check prices at:

GeForce GT 320

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 GT 130 GeForce GT 320
Manufacturer nVidia nVidia
Year March 10, 2009 February 2010
Code Name G94b GT215
Memory 768 MB 1024 MB
Core Speed 500 MHz 540 MHz
Memory Speed 500 MHz 1580 MHz
Power (Max TDP) 75 watts 43 watts
Bandwidth 12000 MB/sec 25280 MB/sec
Texel Rate 12000 Mtexels/sec 12960 Mtexels/sec
Pixel Rate 8000 Mpixels/sec 4320 Mpixels/sec
Unified Shaders 48 72
Texture Mapping Units 24 24
Render Output Units 16 8
Bus Type DDR2 GDDR3
Bus Width 192-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 505 million 727 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.3

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number 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 worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 130

Amazon.com

Check prices at:

GeForce GT 320

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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