GeForce GTX 275 vs Radeon RX 460

Intro

Compare that to the Radeon RX 460, which comes with GPU clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

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

Performance-wise, the GeForce GTX 275 should in theory be just a bit superior to the Radeon RX 460 overall. (explain)

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

Texel Rate

The Radeon RX 460 is quite a bit (about 21%) faster with regards to texture filtering 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 will be a bit (approximately 2%) more effective at FSAA than the Radeon RX 460, and also will be capable of handling higher screen resolutions without losing too much performance. (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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics 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 amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.