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GeForce GT 320 vs GeForce GTX 460 2GB

Intro

The GeForce GT 320 comes with a GPU core speed of 540 MHz, and the 1024 MB of GDDR3 memory runs at 790 MHz through a 128-bit bus. It also is comprised of 72 Stream Processors, 24 TAUs, and 8 ROPs.

Compare all that to the GeForce GTX 460 2GB, which comes with clock speeds of 675 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 RAM. It features 336 SPUs along with 56 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
GeForce GTX 460 2GB 160 Watts
Difference: 117 Watts (272%)

Memory Bandwidth

In theory, the GeForce GTX 460 2GB will be 356% faster than the GeForce GT 320 in general, due to its greater bandwidth. (explain)

GeForce GTX 460 2GB 115200 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 89920 (356%)

Texel Rate

The GeForce GTX 460 2GB is quite a bit (approximately 192%) faster with regards to anisotropic filtering than the GeForce GT 320. (explain)

GeForce GTX 460 2GB 37800 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 24840 (192%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 2GB is the winner, by far. (explain)

GeForce GTX 460 2GB 21600 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 17280 (400%)

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 GTX 460 2GB

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 GTX 460 2GB
Manufacturer nVidia nVidia
Year February 2010 July 2010
Code Name GT215 GF104
Memory 1024 MB 2048 MB
Core Speed 540 MHz 675 MHz
Memory Speed 1580 MHz 3600 MHz
Power (Max TDP) 43 watts 160 watts
Bandwidth 25280 MB/sec 115200 MB/sec
Texel Rate 12960 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 72 336
Texture Mapping Units 24 56
Render Output Units 8 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 727 million 1950 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 largest amount of information (counted in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GT 320

Amazon.com

Check prices at:

GeForce GTX 460 2GB

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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