GeForce GTX 965M vs Radeon R9 280

Intro

Compare that to the Radeon R9 280, which uses a 28 nm design. AMD has set the core frequency at 933 MHz. The GDDR5 memory works at a speed of 1250 MHz on this model. It features 1792 SPUs as well as 112 Texture Address Units and 32 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 280		7961 points
GeForce GTX 965M		5650 points
	Difference: 2311 (41%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon R9 280		250 Watts
	Difference: 190 Watts (317%)

Memory Bandwidth

In theory, the Radeon R9 280 should be much faster than the GeForce GTX 965M overall. (explain)

Radeon R9 280		240000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 176000 (275%)

Texel Rate

The Radeon R9 280 is a lot (about 73%) faster with regards to texture filtering than the GeForce GTX 965M. (explain)

Radeon R9 280		104496 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 44080 (73%)

Pixel Rate

The GeForce GTX 965M is just a bit (more or less 1%) better at anti-aliasing than the Radeon R9 280, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon R9 280		29856 Mpixels/sec
	Difference: 352 (1%)

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 maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, 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 most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.