GeForce GTX 260 vs Radeon R9 380X

Intro

Compare those specifications to the Radeon R9 380X, which features core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260		182 Watts
Radeon R9 380X		190 Watts
	Difference: 8 Watts (4%)

Memory Bandwidth

The Radeon R9 380X should in theory be quite a bit faster than the GeForce GTX 260 overall. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 260		111888 MB/sec
	Difference: 70512 (63%)

Texel Rate

The Radeon R9 380X will be quite a bit (more or less 237%) faster with regards to texture filtering than the GeForce GTX 260. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 87296 (237%)

Pixel Rate

The Radeon R9 380X will be a lot (more or less 92%) faster with regards to anti-aliasing than the GeForce GTX 260, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 260		16128 Mpixels/sec
	Difference: 14912 (92%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the 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 number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.