GeForce GT 320 vs Radeon R9 270

Intro

Compare that to the Radeon R9 270, which comes with core speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon R9 270		150 Watts
	Difference: 107 Watts (249%)

Memory Bandwidth

In theory, the Radeon R9 270 is 609% quicker than the GeForce GT 320 in general, due to its greater data rate. (explain)

Radeon R9 270		179200 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 153920 (609%)

Texel Rate

The Radeon R9 270 will be much (about 456%) faster with regards to anisotropic filtering than the GeForce GT 320. (explain)

Radeon R9 270		72000 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 59040 (456%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 270 is superior to the GeForce GT 320, and very much so. (explain)

Radeon R9 270		28800 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 24480 (567%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.