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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 speed at 540 MHz. The GDDR3 memory runs at a speed of 790 MHz on this specific card. It features 72 SPUs as well as 24 Texture Address Units and 8 ROPs.

Compare all of that to the Radeon HD 5970, which has core clock 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 TAUs and 64 Rasterization Operator Units.

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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 will be 913% faster than the GeForce GT 320 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon HD 5970 is much (approximately 1690%) more effective at AF than the GeForce GT 320. (explain)

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

Pixel Rate

The Radeon HD 5970 is much (about 2048%) more effective at AA than the GeForce GT 320, and also capable of handling higher screen resolutions without losing too much performance. (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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling 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 can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum 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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