GeForce GTX 980M vs Radeon HD 7950

Intro

Compare all of that to the Radeon HD 7950, which has core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1536 MB of GDDR5 RAM. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 980M		9476 points
Radeon HD 7950		7731 points
	Difference: 1745 (23%)

Zcash Mining Hash Rate

Radeon HD 7950		235 Sol/s
GeForce GTX 980M		155 Sol/s
	Difference: 80 (52%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon HD 7950		200 Watts
	Difference: 100 Watts (100%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7950 should in theory be a lot superior to the GeForce GTX 980M overall. (explain)

Radeon HD 7950		240000 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 112000 (88%)

Texel Rate

The GeForce GTX 980M will be a bit (about 11%) faster with regards to texture filtering than the Radeon HD 7950. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 10048 (11%)

Pixel Rate

The GeForce GTX 980M is quite a bit (approximately 160%) better at full screen anti-aliasing than the Radeon HD 7950, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 40832 (160%)

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 information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 max fill rate.