Radeon R7 M260X vs Radeon R9 290X

Intro

Compare that to the Radeon R9 290X, which comes with a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 512-bit bus, and uses 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

As far as performance goes, the Radeon R9 290X should in theory be much superior to the Radeon R7 M260X in general. (explain)

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

Texel Rate

The Radeon R9 290X will be quite a bit (about 611%) faster with regards to AF than the Radeon R7 M260X. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 290X is the winner, and very much so. (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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 are applied per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video 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 maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.