Radeon HD 5830 vs Radeon R7 260X

Intro

Compare all of that to the Radeon R7 260X, which features a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 RAM set to run at 1625 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon HD 5830		175 Watts
	Difference: 60 Watts (52%)

Memory Bandwidth

In theory, the Radeon HD 5830 will be 23% faster than the Radeon R7 260X in general, because of its greater bandwidth. (explain)

Radeon HD 5830		128000 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 24000 (23%)

Texel Rate

The Radeon R7 260X will be much (more or less 38%) faster with regards to anisotropic filtering than the Radeon HD 5830. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 16800 (38%)

Pixel Rate

The Radeon R7 260X will be a lot (more or less 38%) more effective at anti-aliasing than the Radeon HD 5830, and also will be able to handle higher resolutions more effectively. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 4800 (38%)

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 maximum amount of information (counted in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at 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 the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.