GeForce GTX 980 vs Radeon HD 5750 1GB

Intro

Compare all of that to the Radeon HD 5750 1GB, which features a clock frequency of 700 MHz and a GDDR5 memory speed of 1150 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 720(144x5) 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 5750 1GB		86 Watts
GeForce GTX 980		165 Watts
	Difference: 79 Watts (92%)

Memory Bandwidth

In theory, the GeForce GTX 980 should be quite a bit faster than the Radeon HD 5750 1GB overall. (explain)

GeForce GTX 980		224000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 150400 (204%)

Texel Rate

The GeForce GTX 980 will be a lot (approximately 472%) more effective at anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 118928 (472%)

Pixel Rate

The GeForce GTX 980 should be quite a bit (about 543%) more effective at FSAA than the Radeon HD 5750 1GB, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 60864 (543%)

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 across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling 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 that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many 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.