GeForce GTX 650 Ti 2GB vs Radeon R9 295X2

Intro

Compare that to the Radeon R9 295X2, which features GPU core speed of 1018 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 512-bit bus. It also is comprised of 2816 SPUs, 176 Texture Address Units, 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 R9 295X2		500 Watts
	Difference: 390 Watts (355%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 295X2 will be 641% faster than the GeForce GTX 650 Ti 2GB in general, due to its greater data rate. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 553600 (641%)

Texel Rate

The Radeon R9 295X2 will be much (approximately 503%) better at anisotropic filtering than the GeForce GTX 650 Ti 2GB. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 298944 (503%)

Pixel Rate

The Radeon R9 295X2 should be a lot (more or less 778%) more effective at AA than the GeForce GTX 650 Ti 2GB, and capable of handling higher resolutions more effectively. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 115456 (778%)

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 (in units of megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.