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GeForce GT 320 vs GeForce GT 430 (OEM)

Intro

The GeForce GT 320 features a clock speed of 540 MHz and a GDDR3 memory frequency of 790 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It features 72 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare those specs to the GeForce GT 430 (OEM), which comes with core clock speeds of 700 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR3 memory. It features 96 SPUs as well as 16 TAUs and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
GeForce GT 430 (OEM) 60 Watts
Difference: 17 Watts (40%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 430 (OEM) should be a small bit faster than the GeForce GT 320 in general. (explain)

GeForce GT 430 (OEM) 28800 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 3520 (14%)

Texel Rate

The GeForce GT 320 will be a bit (approximately 16%) better at texture filtering than the GeForce GT 430 (OEM). (explain)

GeForce GT 320 12960 Mtexels/sec
GeForce GT 430 (OEM) 11200 Mtexels/sec
Difference: 1760 (16%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 320 is a better choice, by a large margin. (explain)

GeForce GT 320 4320 Mpixels/sec
GeForce GT 430 (OEM) 2800 Mpixels/sec
Difference: 1520 (54%)

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 320

Amazon.com

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GeForce GT 430 (OEM)

Amazon.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

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Model GeForce GT 320 GeForce GT 430 (OEM)
Manufacturer nVidia nVidia
Year February 2010 October 2010
Code Name GT215 GF108
Memory 1024 MB 2048 MB
Core Speed 540 MHz 700 MHz
Memory Speed 1580 MHz 1800 MHz
Power (Max TDP) 43 watts 60 watts
Bandwidth 25280 MB/sec 28800 MB/sec
Texel Rate 12960 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 72 96
Texture Mapping Units 24 16
Render Output Units 8 4
Bus Type GDDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 727 million 585 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.3 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GT 320

Amazon.com

Check prices at:

GeForce GT 430 (OEM)

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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