GeForce GT 320 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which features a core clock speed of 730 MHz and a DDR3 memory frequency of 900 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 320 SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GT 320		43 Watts
	Difference: 13 Watts (43%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 240 should be just a bit faster than the GeForce GT 320 overall. (explain)

Radeon R7 240		28800 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 3520 (14%)

Texel Rate

The Radeon R7 240 is a bit (approximately 13%) more effective at anisotropic filtering than the GeForce GT 320. (explain)

Radeon R7 240		14600 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 1640 (13%)

Pixel Rate

The Radeon R7 240 is a lot (more or less 35%) more effective at AA than the GeForce GT 320, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R7 240		5840 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 1520 (35%)

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 largest amount of data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units of the card 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many 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.