GeForce 9800 GTX+ vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which has a clock speed of 900 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

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

The Radeon R9 M280X, in theory, should perform quite a bit faster than 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 (approximately 7%) faster with regards to 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

If running with lots of anti-aliasing is important to you, then the Radeon R9 M280X is a better choice, by far. (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: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the 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 card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.