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GeForce GT 320 vs Radeon R9 M280X

Intro

The GeForce GT 320 makes use of a 40 nm design. nVidia has set the core frequency at 540 MHz. The GDDR3 memory works at a speed of 790 MHz on this specific model. It features 72 SPUs as well as 24 Texture Address Units and 8 ROPs.

Compare that to the Radeon R9 M280X, which comes with GPU core speed of 900 MHz, and 4096 MB of GDDR5 memory running at 1375 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
Radeon R9 M280X 75 Watts
Difference: 32 Watts (74%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M280X should theoretically be much better than the GeForce GT 320 in general. (explain)

Radeon R9 M280X 88000 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 62720 (248%)

Texel Rate

The Radeon R9 M280X is much (more or less 289%) better at anisotropic filtering than the GeForce GT 320. (explain)

Radeon R9 M280X 50400 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 37440 (289%)

Pixel Rate

The Radeon R9 M280X should be a lot (about 233%) more effective at full screen anti-aliasing than the GeForce GT 320, and will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 M280X 14400 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 10080 (233%)

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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Radeon R9 M280X

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 Radeon R9 M280X
Manufacturer nVidia AMD
Year February 2010 Feb 9 2015
Code Name GT215 Saturn XT
Memory 1024 MB 4096 MB
Core Speed 540 MHz 900 MHz
Memory Speed 1580 MHz 5500 MHz
Power (Max TDP) 43 watts 75 watts
Bandwidth 25280 MB/sec 88000 MB/sec
Texel Rate 12960 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 72 896
Texture Mapping Units 24 56
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 727 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 320

Amazon.com

Check prices at:

Radeon R9 M280X

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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