GeForce GT 315 vs Radeon R7 240

Intro

Compare all that to the Radeon R7 240, which uses a 28 nm design. AMD has clocked the core speed at 730 MHz. The DDR3 RAM runs at a frequency of 900 MHz on this specific model. It features 320 SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

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

Performance-wise, the Radeon R7 240 should theoretically be just a bit superior to the GeForce GT 315 overall. (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 (more or less 46%) more effective at AF than the GeForce GT 315. (explain)

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

Pixel Rate

The Radeon R7 240 is a small bit (about 17%) faster with regards to anti-aliasing than the GeForce GT 315, and will be capable of handling higher resolutions while still performing well. (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 maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics 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 maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.