GeForce GTX 965M vs Radeon HD 7970

Intro

Compare those specs to the Radeon HD 7970, which makes use of a 28 nm design. AMD has clocked the core speed at 925 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this specific model. It features 2048 SPUs along with 128 TAUs 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

Radeon HD 7970		8225 points
GeForce GTX 965M		5650 points
	Difference: 2575 (46%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 7970		250 Watts
	Difference: 190 Watts (317%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7970 should be 313% quicker than the GeForce GTX 965M in general, because of its higher data rate. (explain)

Radeon HD 7970		264000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 200000 (313%)

Texel Rate

The Radeon HD 7970 is much (approximately 96%) better at texture filtering than the GeForce GTX 965M. (explain)

Radeon HD 7970		118400 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 57984 (96%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 965M is superior to the Radeon HD 7970, though not by far. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 608 (2%)

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 (counted in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core 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 a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.