GeForce GTX 260 vs Radeon R9 M365X

Intro

Compare that to the Radeon R9 M365X, which features a clock speed of 925 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 should be 55% faster than the Radeon R9 M365X in general, because of its higher data rate. (explain)

GeForce GTX 260		111888 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 39888 (55%)

Texel Rate

The Radeon R9 M365X is a small bit (approximately 0%) more effective at anisotropic filtering than the GeForce GTX 260. (explain)

Radeon R9 M365X		37000 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 136 (0%)

Pixel Rate

The GeForce GTX 260 is a bit (about 9%) more effective at FSAA than the Radeon R9 M365X, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 260		16128 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 1328 (9%)

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 over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.