GeForce GTX 480 vs Radeon R9 M270X

Intro

Compare those specifications to the Radeon R9 M270X, which makes use of a 28 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 memory runs at a frequency of 1125 MHz on this model. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 480 will be 146% quicker than the Radeon R9 M270X in general, because of its greater bandwidth. (explain)

GeForce GTX 480		177408 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 105408 (146%)

Texel Rate

The GeForce GTX 480 is much (about 45%) better at anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 13000 (45%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 480 is superior to the Radeon R9 M270X, by a large margin. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 22000 (190%)

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 MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core 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 number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.