GeForce GTX 465 vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which uses a 28 nm design. AMD has set the core speed at 1100 MHz. The GDDR5 memory works at a speed of 1625 MHz on this particular card. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
GeForce GTX 465		200 Watts
	Difference: 85 Watts (74%)

Memory Bandwidth

In theory, the Radeon R7 260X is 1% quicker than the GeForce GTX 465 overall, because of its greater data rate. (explain)

Radeon R7 260X		104000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 1408 (1%)

Texel Rate

The Radeon R7 260X should be a lot (about 131%) more effective at anisotropic filtering than the GeForce GTX 465. (explain)

Radeon R7 260X		61600 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 34892 (131%)

Pixel Rate

The GeForce GTX 465 will be a small bit (more or less 10%) better at FSAA than the Radeon R7 260X, and able to handle higher resolutions more effectively. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 1824 (10%)

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 max amount of data (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.