GeForce GTX 260 vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which features a clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce GTX 260		182 Watts
	Difference: 57 Watts (46%)

Memory Bandwidth

The Radeon R9 M395X, in theory, should be a lot faster than the GeForce GTX 260 overall. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce GTX 260		111888 MB/sec
	Difference: 48112 (43%)

Texel Rate

The Radeon R9 M395X is much (about 151%) faster with regards to anisotropic filtering than the GeForce GTX 260. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 55680 (151%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M395X is superior to the GeForce GTX 260, and very much so. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce GTX 260		16128 Mpixels/sec
	Difference: 7008 (43%)

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: Bandwidth is the largest amount of data (measured in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.