GeForce GTX 285 2GB vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which features a core clock speed of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 79 Watts (63%)

Memory Bandwidth

In theory, the Radeon R9 M295X should be 11% quicker than the GeForce GTX 285 2GB overall, due to its greater data rate. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 285 2GB		158976 MB/sec
	Difference: 17024 (11%)

Texel Rate

The Radeon R9 M295X should be a lot (more or less 85%) more effective at anisotropic filtering than the GeForce GTX 285 2GB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 44160 (85%)

Pixel Rate

The Radeon R9 M295X will be a small bit (about 16%) more effective at anti-aliasing than the GeForce GTX 285 2GB, and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce GTX 285 2GB		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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. 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 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 ability to get to the max fill rate.