Geforce GTX 780 vs Radeon R7 M260X

Intro

Compare those specifications to the Radeon R7 M260X, which uses a 28 nm design. AMD has set the core speed at 825 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this particular card. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 780 should theoretically be a lot faster than the Radeon R7 M260X in general. (explain)

Geforce GTX 780		288384 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 224384 (351%)

Texel Rate

The Geforce GTX 780 should be quite a bit (approximately 737%) more effective at anisotropic filtering than the Radeon R7 M260X. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 145896 (737%)

Pixel Rate

The Geforce GTX 780 should be a lot (about 528%) faster with regards to full screen anti-aliasing than the Radeon R7 M260X, and capable of handling higher screen resolutions more effectively. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 34824 (528%)

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 information (in units of MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, 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 amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to 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 maximum fill rate.