GeForce 9800 GTX+ vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which makes use of a 28 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 memory works at a speed of 1375 MHz on this model. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 70 Watts (93%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M280X should in theory be a lot superior to the GeForce 9800 GTX+ overall. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 17600 (25%)

Texel Rate

The Radeon R9 M280X should be just a bit (more or less 7%) better at anisotropic filtering than the GeForce 9800 GTX+. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce 9800 GTX+		47232 Mtexels/sec
	Difference: 3168 (7%)

Pixel Rate

The Radeon R9 M280X will be much (more or less 22%) better at AA than the GeForce 9800 GTX+, and also capable of handling higher resolutions more effectively. (explain)

Radeon R9 M280X		14400 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 2592 (22%)

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 information (measured in megabytes per second) that can be moved across the external memory interface in a second. It is 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 it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, 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 is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.