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GeForce GT 320 vs Radeon HD 5970

Intro

The GeForce GT 320 uses a 40 nm design. nVidia has set the core frequency at 540 MHz. The GDDR3 memory runs at a speed of 790 MHz on this particular model. It features 72 SPUs as well as 24 TAUs and 8 ROPs.

Compare those specifications to the Radeon HD 5970, which features core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1600 SPUs as well as 160 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
Radeon HD 5970 294 Watts
Difference: 251 Watts (584%)

Memory Bandwidth

In theory, the Radeon HD 5970 should be much faster than the GeForce GT 320 overall. (explain)

Radeon HD 5970 256000 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 230720 (913%)

Texel Rate

The Radeon HD 5970 is a lot (more or less 1690%) more effective at anisotropic filtering than the GeForce GT 320. (explain)

Radeon HD 5970 232000 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 219040 (1690%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 5970 is a better choice, by a large margin. (explain)

Radeon HD 5970 92800 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 88480 (2048%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GT 320

Amazon.com

Check prices at:

Radeon HD 5970

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 Radeon HD 5970
Manufacturer nVidia AMD
Year February 2010 November 2009
Code Name GT215 Hemlock XT
Memory 1024 MB 1024 MB (x2)
Core Speed 540 MHz 725 MHz (x2)
Memory Speed 1580 MHz 4000 MHz (x2)
Power (Max TDP) 43 watts 294 watts
Bandwidth 25280 MB/sec 256000 MB/sec
Texel Rate 12960 Mtexels/sec 232000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 92800 Mpixels/sec
Unified Shaders 72 1600 (x2)
Texture Mapping Units 24 160 (x2)
Render Output Units 8 64 (x2)
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit (x2)
Fab Process 40 nm 40 nm
Transistors 727 million 2154 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 largest amount of data (counted in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GT 320

Amazon.com

Check prices at:

Radeon HD 5970

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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