GeForce GTX 285 2GB vs Radeon R9 M270X

Intro

Compare those specifications to the Radeon R9 M270X, which comes with GPU core speed of 725 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 2GB should be a lot faster than the Radeon R9 M270X in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 86976 (121%)

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (approximately 79%) more effective at AF than the Radeon R9 M270X. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 22840 (79%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 285 2GB is superior to the Radeon R9 M270X, by a large margin. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 9136 (79%)

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 largest amount of information (counted in MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.