GeForce GTX 275 vs Radeon RX 470 4GB

Intro

Compare that to the Radeon RX 470 4GB, which has clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
GeForce GTX 275		219 Watts
	Difference: 99 Watts (83%)

Memory Bandwidth

In theory, the Radeon RX 470 4GB should be much faster than the GeForce GTX 275 in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
GeForce GTX 275		127008 MB/sec
	Difference: 84192 (66%)

Texel Rate

The Radeon RX 470 4GB should be a lot (about 134%) more effective at texture filtering than the GeForce GTX 275. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 67888 (134%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 470 4GB is a better choice, and very much so. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 11908 (67%)

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 information (measured in MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.