Radeon R7 260X vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which has a core clock frequency of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon R9 M295X		125 Watts
	Difference: 10 Watts (9%)

Memory Bandwidth

In theory, the Radeon R9 M295X should be quite a bit faster than the Radeon R7 260X overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 72000 (69%)

Texel Rate

The Radeon R9 M295X is much (more or less 56%) better at anisotropic filtering than the Radeon R7 260X. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon R7 260X		61600 Mtexels/sec
	Difference: 34400 (56%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M295X is a better choice, and very much so. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 6400 (36%)

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 past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If 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, 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 texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.