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GeForce GT 320 vs Radeon R9 M275X

Intro

The GeForce GT 320 has clock speeds of 540 MHz on the GPU, and 790 MHz on the 1024 MB of GDDR3 RAM. It features 72 SPUs as well as 24 Texture Address Units and 8 ROPs.

Compare all that to the Radeon R9 M275X, which has GPU core speed of 900 MHz, and 2048 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
Radeon R9 M275X 50 Watts
Difference: 7 Watts (16%)

Memory Bandwidth

Performance-wise, the Radeon R9 M275X should in theory be quite a bit better than the GeForce GT 320 overall. (explain)

Radeon R9 M275X 72000 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 46720 (185%)

Texel Rate

The Radeon R9 M275X will be much (approximately 178%) faster with regards to AF than the GeForce GT 320. (explain)

Radeon R9 M275X 36000 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 23040 (178%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 M275X is the winner, by a large margin. (explain)

Radeon R9 M275X 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

Check prices at:

Radeon R9 M275X

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 R9 M275X
Manufacturer nVidia AMD
Year February 2010 May 1 2014
Code Name GT215 Venus XTX
Memory 1024 MB 2048 MB
Core Speed 540 MHz 900 MHz
Memory Speed 1580 MHz 4500 MHz
Power (Max TDP) 43 watts 50 watts
Bandwidth 25280 MB/sec 72000 MB/sec
Texel Rate 12960 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 72 640
Texture Mapping Units 24 40
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 max amount of data (counted in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 320

Amazon.com

Check prices at:

Radeon R9 M275X

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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