GeForce GTX 980M vs Radeon HD 7950

Intro

Compare those specs to the Radeon HD 7950, which makes use of a 28 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this specific model. It features 1792 SPUs as well as 112 Texture Address Units and 32 ROPs.

Display Graphs

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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

In theory, the Radeon HD 7950 should be 88% quicker than the GeForce GTX 980M in general, because of its greater data rate. (explain)

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

Texel Rate

The GeForce GTX 980M should be a little bit (approximately 11%) more effective at AF 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 a lot (approximately 160%) faster with regards to anti-aliasing than the Radeon HD 7950, and also will be capable of handling higher resolutions while still performing well. (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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at 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 could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.