GeForce GT 315 vs Radeon R7 240

Intro

Compare all of that to the Radeon R7 240, which makes use of a 28 nm design. AMD has clocked the core speed at 730 MHz. The DDR3 memory is set to run at a frequency of 900 MHz on this specific model. It features 320 SPUs along with 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GT 315		52 Watts
	Difference: 22 Watts (73%)

Memory Bandwidth

The Radeon R7 240 should theoretically be a bit faster than the GeForce GT 315 in general. (explain)

Radeon R7 240		28800 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 3520 (14%)

Texel Rate

The Radeon R7 240 should be much (about 46%) better at anisotropic filtering than the GeForce GT 315. (explain)

Radeon R7 240		14600 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 4600 (46%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 240 is a better choice, but it probably won't make a huge difference. (explain)

Radeon R7 240		5840 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 840 (17%)

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 (counted in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.