GeForce GTX 650 Ti 2GB vs Radeon RX 580

Intro

Compare those specs to the Radeon RX 580, which has a core clock speed of 1257 MHz and a GDDR5 memory frequency of 2000 MHz. It also makes use of a 256-bit memory bus, and makes use of a 14 nm design. It is made up of 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
Radeon RX 580		185 Watts
	Difference: 75 Watts (68%)

Memory Bandwidth

In theory, the Radeon RX 580 should be 203% quicker than the GeForce GTX 650 Ti 2GB in general, because of its greater data rate. (explain)

Radeon RX 580		262144 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 175744 (203%)

Texel Rate

The Radeon RX 580 is much (about 205%) faster with regards to texture filtering than the GeForce GTX 650 Ti 2GB. (explain)

Radeon RX 580		181008 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 121616 (205%)

Pixel Rate

The Radeon RX 580 should be much (approximately 171%) better at FSAA than the GeForce GTX 650 Ti 2GB, and able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 580		40224 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 25376 (171%)

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 maximum amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the 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 record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.