GeForce GTX 650 Ti 2GB vs Radeon R9 290X

Intro

Compare those specifications to the Radeon R9 290X, which features a clock frequency of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 512-bit bus, and makes use of a 28 nm design. It is comprised of 2816 SPUs, 176 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
Radeon R9 290X		300 Watts
	Difference: 190 Watts (173%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 290X is 270% quicker than the GeForce GTX 650 Ti 2GB in general, due to its higher bandwidth. (explain)

Radeon R9 290X		320000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 233600 (270%)

Texel Rate

The Radeon R9 290X should be much (approximately 137%) faster with regards to anisotropic filtering than the GeForce GTX 650 Ti 2GB. (explain)

Radeon R9 290X		140800 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 81408 (137%)

Pixel Rate

The Radeon R9 290X should be a lot (more or less 245%) faster with regards to anti-aliasing than the GeForce GTX 650 Ti 2GB, and capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 290X		51200 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 36352 (245%)

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 moved across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed 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 the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.