GeForce GTX 965M vs Radeon R9 390 8G

Intro

Compare those specs to the Radeon R9 390 8G, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this card. It features 2560 SPUs as well as 160 TAUs and 64 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

Radeon R9 390 8G		12733 points
GeForce GTX 965M		5650 points
	Difference: 7083 (125%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon R9 390 8G		275 Watts
	Difference: 215 Watts (358%)

Memory Bandwidth

As far as performance goes, the Radeon R9 390 8G should in theory be much superior to the GeForce GTX 965M in general. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 320000 (500%)

Texel Rate

The Radeon R9 390 8G should be a lot (approximately 165%) better at AF than the GeForce GTX 965M. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 99584 (165%)

Pixel Rate

The Radeon R9 390 8G should be a lot (approximately 112%) better at FSAA than the GeForce GTX 965M, and also capable of handling higher resolutions while still performing well. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 33792 (112%)

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 moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.