GeForce GTX 275 vs Radeon RX 460

Intro

Compare that to the Radeon RX 460, which features a GPU core clock speed of 1090 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
GeForce GTX 275		219 Watts
	Difference: 144 Watts (192%)

Memory Bandwidth

In theory, the GeForce GTX 275 should be 13% quicker than the Radeon RX 460 overall, because of its greater bandwidth. (explain)

GeForce GTX 275		127008 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 15008 (13%)

Texel Rate

The Radeon RX 460 should be much (more or less 21%) faster with regards to AF than the GeForce GTX 275. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 10400 (21%)

Pixel Rate

The GeForce GTX 275 should be a bit (more or less 2%) more effective at anti-aliasing than the Radeon RX 460, and should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 275		17724 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 284 (2%)

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 information (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.