GeForce GT 315 vs Radeon R9 Nano

Intro

Compare those specifications to the Radeon R9 Nano, which has core speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs as well as 256 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon R9 Nano		175 Watts
	Difference: 123 Watts (237%)

Memory Bandwidth

Performance-wise, the Radeon R9 Nano should theoretically be much better than the GeForce GT 315 in general. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 486720 (1925%)

Texel Rate

The Radeon R9 Nano should be a lot (approximately 2460%) more effective at anisotropic filtering than the GeForce GT 315. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 246000 (2460%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 Nano is superior to the GeForce GT 315, by a large margin. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 59000 (1180%)

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 max amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, 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 number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.