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GeForce GT 320 vs GeForce GT 430

Intro

The GeForce GT 320 comes with a GPU core clock speed of 540 MHz, and the 1024 MB of GDDR3 RAM is set to run at 790 MHz through a 128-bit bus. It also features 72 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the GeForce GT 430, which features a core clock frequency of 700 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 96 SPUs, 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 60 Watts
Difference: 17 Watts (40%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 430 should be 14% quicker than the GeForce GT 320 overall, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GT 320 should be a bit (more or less 16%) more effective at AF than the GeForce GT 430. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 320 is superior to the GeForce GT 430, by far. (explain)

GeForce GT 320 4320 Mpixels/sec
GeForce GT 430 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

Check prices at:

GeForce GT 430

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 320 GeForce GT 430
Manufacturer nVidia nVidia
Year February 2010 October 2010
Code Name GT215 GF108
Memory 1024 MB 512 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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 320

Amazon.com

Check prices at:

GeForce GT 430

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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