GeForce GTX 285 1GB vs Radeon R9 M295X

Intro

Compare all that to the Radeon R9 M295X, which uses a 28 nm design. AMD has set the core speed at 750 MHz. The GDDR5 memory works at a frequency of 1375 MHz on this particular model. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 79 Watts (63%)

Memory Bandwidth

In theory, the Radeon R9 M295X should be a bit faster than the GeForce GTX 285 1GB overall. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 17024 (11%)

Texel Rate

The Radeon R9 M295X is a lot (approximately 85%) better at AF than the GeForce GTX 285 1GB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 44160 (85%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M295X is a better choice, but only just. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 3264 (16%)

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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 can be processed per second. This number is calculated by multiplying the total number of texture units by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.