GeForce GTX 965M vs Radeon HD 7790

Intro

Compare those specifications to the Radeon HD 7790, which comes with core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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 965M		5650 points
Radeon HD 7790		4330 points
	Difference: 1320 (30%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 7790		85 Watts
	Difference: 25 Watts (42%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7790 is 50% quicker than the GeForce GTX 965M overall, because of its greater data rate. (explain)

Radeon HD 7790		96000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 32000 (50%)

Texel Rate

The GeForce GTX 965M should be just a bit (more or less 8%) better at texture filtering than the Radeon HD 7790. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 4416 (8%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 965M is superior to the Radeon HD 7790, and very much so. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 14208 (89%)

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 (measured in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.