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GeForce GT 320 vs GeForce GT 430 (OEM)

Intro

The GeForce GT 320 features a GPU core speed of 540 MHz, and the 1024 MB of GDDR3 RAM runs at 790 MHz through a 128-bit bus. It also features 72 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

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

Display Graphs

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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

As far as performance goes, the GeForce GT 430 (OEM) should theoretically be a bit superior to the GeForce GT 320 overall. (explain)

GeForce GT 430 (OEM) 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%) faster with regards to AF 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

The GeForce GT 320 will be quite a bit (about 54%) better at FSAA than the GeForce GT 430 (OEM), and will be capable of handling higher screen resolutions without slowing down too much. (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 maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max 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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