GeForce GT 315 vs Radeon R9 270X

Intro

Compare those specifications to the Radeon R9 270X, which features core speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon R9 270X		180 Watts
	Difference: 128 Watts (246%)

Memory Bandwidth

Theoretically, the Radeon R9 270X should perform much faster than the GeForce GT 315 in general. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 153920 (609%)

Texel Rate

The Radeon R9 270X will be much (approximately 700%) more effective at anisotropic filtering than the GeForce GT 315. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 70000 (700%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 270X is superior to the GeForce GT 315, by far. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 27000 (540%)

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 transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.