Radeon HD 5830 vs Radeon R7 260X

Intro

Compare those specs to the Radeon R7 260X, which has a clock speed of 1100 MHz and a GDDR5 memory frequency of 1625 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is comprised of 896 SPUs, 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
Radeon HD 5830		175 Watts
	Difference: 60 Watts (52%)

Memory Bandwidth

Theoretically speaking, 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 should be much (about 38%) more effective at AF 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 should be much (more or less 38%) more effective at anti-aliasing than the Radeon HD 5830, and should be capable of handling higher resolutions better. (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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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 number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.