Radeon HD 6750 1GB vs Radeon R7 260X

Intro

Compare all that to the Radeon R7 260X, which makes use of a 28 nm design. AMD has clocked the core speed at 1100 MHz. The GDDR5 RAM is set to run at a frequency of 1625 MHz on this model. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
Radeon R7 260X		115 Watts
	Difference: 29 Watts (34%)

Memory Bandwidth

As far as performance goes, the Radeon R7 260X should in theory be quite a bit superior to the Radeon HD 6750 1GB in general. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 40000 (63%)

Texel Rate

The Radeon R7 260X will be much (approximately 136%) more effective at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 35500 (136%)

Pixel Rate

The Radeon R7 260X should be quite a bit (about 52%) faster with regards to AA than the Radeon HD 6750 1GB, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 6000 (52%)

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 (counted in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, 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 that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.