GeForce GT 315 vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which features GPU core speed of 926 MHz, and 8192 MB of GDDR5 memory set to run at 1650 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 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

As far as performance goes, the Radeon RX 470 should theoretically be much superior to the GeForce GT 315 overall. (explain)

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

Texel Rate

The Radeon RX 470 is quite a bit (approximately 1085%) faster with regards to texture filtering than the GeForce GT 315. (explain)

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

Pixel Rate

The Radeon RX 470 should be a lot (approximately 493%) faster with regards to FSAA than the GeForce GT 315, and will be capable of handling higher resolutions while still performing well. (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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 texture map elements (texels) that can be 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 the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.