GeForce GT 315 vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which comes with core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon RX 470		120 Watts
	Difference: 68 Watts (131%)

Memory Bandwidth

In theory, the Radeon RX 470 is 735% quicker than the GeForce GT 315 in general, because of its greater data rate. (explain)

Radeon RX 470		211200 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 185920 (735%)

Texel Rate

The Radeon RX 470 is a lot (about 1085%) better at anisotropic filtering than the GeForce GT 315. (explain)

Radeon RX 470		118528 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 108528 (1085%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 470 is a better choice, by a large margin. (explain)

Radeon RX 470		29632 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 24632 (493%)

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: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.