Radeon R7 M260X vs Radeon R9 290X

Intro

Compare all of that to the Radeon R9 290X, which features a core clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 512-bit bus, and makes use of a 28 nm design. It is comprised of 2816 SPUs, 176 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 290X should perform much faster than the Radeon R7 M260X overall. (explain)

Radeon R9 290X		320000 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 256000 (400%)

Texel Rate

The Radeon R9 290X will be much (more or less 611%) faster with regards to anisotropic filtering than the Radeon R7 M260X. (explain)

Radeon R9 290X		140800 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 121000 (611%)

Pixel Rate

The Radeon R9 290X should be much (more or less 676%) faster with regards to full screen anti-aliasing than the Radeon R7 M260X, and also able to handle higher screen resolutions more effectively. (explain)

Radeon R9 290X		51200 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 44600 (676%)

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 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 clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of 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.