GeForce GTX 650 Ti 2GB vs Radeon Pro Duo

Intro

Compare that to the Radeon Pro Duo, which features a clock speed of 1000 MHz and a HBM memory speed of 500 MHz. It also uses a 4096-bit bus, and makes use of a 28 nm design. It features 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
Radeon Pro Duo		350 Watts
	Difference: 240 Watts (218%)

Memory Bandwidth

As far as performance goes, the Radeon Pro Duo should in theory be much superior to the GeForce GTX 650 Ti 2GB in general. (explain)

Radeon Pro Duo		1024000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 937600 (1085%)

Texel Rate

The Radeon Pro Duo should be quite a bit (more or less 762%) better at AF than the GeForce GTX 650 Ti 2GB. (explain)

Radeon Pro Duo		512000 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 452608 (762%)

Pixel Rate

The Radeon Pro Duo will be quite a bit (approximately 762%) better at FSAA than the GeForce GTX 650 Ti 2GB, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon Pro Duo		128000 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 113152 (762%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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.