GeForce GTX 650 Ti vs Radeon R9 M290X

Intro

Compare those specifications to the Radeon R9 M290X, which makes use of a 28 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 RAM works at a frequency of 1200 MHz on this particular model. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 10 Watts (10%)

Memory Bandwidth

In theory, the Radeon R9 M290X is 78% quicker than the GeForce GTX 650 Ti overall, due to its greater bandwidth. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 67200 (78%)

Texel Rate

The Radeon R9 M290X should be a little bit (approximately 14%) better at AF than the GeForce GTX 650 Ti. (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce GTX 650 Ti		59392 Mtexels/sec
	Difference: 8608 (14%)

Pixel Rate

The Radeon R9 M290X will be quite a bit (about 83%) faster with regards to FSAA than the GeForce GTX 650 Ti, and capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 M290X		27200 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 12352 (83%)

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 max amount of information (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.