GeForce GTX 275 vs Radeon RX 480 4GB

Intro

Compare all of that to the Radeon RX 480 4GB, which makes use of a 14 nm design. AMD has set the core frequency at 1120 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this specific card. It features 2304 SPUs along with 144 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
GeForce GTX 275		219 Watts
	Difference: 69 Watts (46%)

Memory Bandwidth

The Radeon RX 480 4GB should in theory be much faster than the GeForce GTX 275 in general. (explain)

Radeon RX 480 4GB		229376 MB/sec
GeForce GTX 275		127008 MB/sec
	Difference: 102368 (81%)

Texel Rate

The Radeon RX 480 4GB is a lot (approximately 218%) more effective at AF than the GeForce GTX 275. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 110640 (218%)

Pixel Rate

The Radeon RX 480 4GB is a lot (approximately 102%) more effective at anti-aliasing than the GeForce GTX 275, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 18116 (102%)

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 data (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.