GeForce GTX 980M vs Radeon HD 6750

Intro

Compare that to the Radeon HD 6750, which has clock speeds of 725 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. It features 720 SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 980M		100 Watts
	Difference: 14 Watts (16%)

Memory Bandwidth

The GeForce GTX 980M should theoretically perform quite a bit faster than the Radeon HD 6750 overall. (explain)

GeForce GTX 980M		128000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 64000 (100%)

Texel Rate

The GeForce GTX 980M will be much (about 282%) more effective at anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 73548 (282%)

Pixel Rate

The GeForce GTX 980M is a lot (about 473%) more effective at FSAA than the Radeon HD 6750, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 54832 (473%)

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 largest amount of information (measured in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.