GeForce GTX 480 vs Radeon R9 M265X

Intro

Compare all that to the Radeon R9 M265X, which uses a 28 nm design. AMD has clocked the core frequency at 575 MHz. The GDDR5 RAM works at a frequency of 1125 MHz on this specific card. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 480 will be 146% faster than the Radeon R9 M265X overall, because of its higher data rate. (explain)

GeForce GTX 480		177408 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 105408 (146%)

Texel Rate

The GeForce GTX 480 is much (about 83%) better at anisotropic filtering than the Radeon R9 M265X. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 19000 (83%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 480 is superior to the Radeon R9 M265X, by a large margin. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 24400 (265%)

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 (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 are applied in one second. This number is calculated 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.