Radeon HD 5670 vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which has GPU 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 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon R7 260X		115 Watts
	Difference: 54 Watts (89%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 260X should be quite a bit faster than the Radeon HD 5670 overall. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 40000 (63%)

Texel Rate

The Radeon R7 260X is quite a bit (more or less 297%) better at anisotropic filtering than the Radeon HD 5670. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 46100 (297%)

Pixel Rate

The Radeon R7 260X is much (approximately 184%) better at FSAA than the Radeon HD 5670, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 11400 (184%)

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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock 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 rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.