GeForce GTX 650 Ti 2GB vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which features a clock speed of 900 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

In theory, the Radeon R9 M280X should be 2% quicker than the GeForce GTX 650 Ti 2GB overall, due to its greater data rate. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 1600 (2%)

Texel Rate

The GeForce GTX 650 Ti 2GB is a little bit (approximately 18%) better at anisotropic filtering than the Radeon R9 M280X. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 8992 (18%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 Ti 2GB is a better choice, though not by far. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 448 (3%)

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 transferred past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out 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 outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.