GeForce GTX 275 vs Radeon RX 570

Intro

Compare all of that to the Radeon RX 570, which comes with a core clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 256-bit memory bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
GeForce GTX 275		219 Watts
	Difference: 69 Watts (46%)

Memory Bandwidth

The Radeon RX 570 should theoretically be much faster than the GeForce GTX 275 overall. (explain)

Radeon RX 570		229376 MB/sec
GeForce GTX 275		127008 MB/sec
	Difference: 102368 (81%)

Texel Rate

The Radeon RX 570 is a lot (about 195%) more effective at anisotropic filtering than the GeForce GTX 275. (explain)

Radeon RX 570		149504 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 98864 (195%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 570 is a better choice, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 19652 (111%)

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 megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total 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 amount of pixels the video card can possibly record to its local memory per 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.