GeForce GTX 950 vs Radeon HD 6750

Intro

Compare those specifications to the Radeon HD 6750, which features a GPU core clock speed of 725 MHz, and 512 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 720 SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 950		90 Watts
	Difference: 4 Watts (5%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 950 should theoretically be quite a bit superior to the Radeon HD 6750 in general. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 41728 (65%)

Texel Rate

The GeForce GTX 950 is quite a bit (more or less 88%) more effective at anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 23052 (88%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 950 is the winner, by a large margin. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 21168 (182%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 processed per second. This figure 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 graphics 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 chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.