GeForce GTX 980 vs Radeon HD 5750 512MB

Intro

Compare that to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has clocked the core frequency at 700 MHz. The GDDR5 memory is set to run at a frequency of 1150 MHz on this particular card. It features 720(144x5) SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 980		165 Watts
	Difference: 79 Watts (92%)

Memory Bandwidth

In theory, the GeForce GTX 980 will be 204% faster than the Radeon HD 5750 512MB overall, due to its greater data rate. (explain)

GeForce GTX 980		224000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 150400 (204%)

Texel Rate

The GeForce GTX 980 should be quite a bit (about 472%) faster with regards to anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 118928 (472%)

Pixel Rate

The GeForce GTX 980 should be a lot (approximately 543%) more effective at AA than the Radeon HD 5750 512MB, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon HD 5750 512MB		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 largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core 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 could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.