GeForce GT 320 vs Radeon R7 240

Intro

Compare all that to the Radeon R7 240, which features a clock speed of 730 MHz and a DDR3 memory speed of 900 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is made up of 320 SPUs, 20 Texture Address Units, 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

As far as performance goes, the Radeon R7 240 should theoretically be a bit better 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 should be a bit (approximately 13%) faster with regards to AF 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 much (more or less 35%) more effective at anti-aliasing than the GeForce GT 320, and will be capable of handling higher 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 maximum amount of information (measured in MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.