GeForce GTX 650 Ti 2GB vs Radeon R9 380 2G

Intro

Compare that to the Radeon R9 380 2G, which has clock speeds of 970 MHz on the GPU, and 1425 MHz on the 2048 MB of GDDR5 memory. It features 1792 SPUs as well as 112 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
Radeon R9 380 2G		190 Watts
	Difference: 80 Watts (73%)

Memory Bandwidth

Theoretically, the Radeon R9 380 2G should perform much faster than the GeForce GTX 650 Ti 2GB in general. (explain)

Radeon R9 380 2G		182400 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 96000 (111%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (more or less 83%) faster with regards to AF than the GeForce GTX 650 Ti 2GB. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 49248 (83%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380 2G is the winner, by far. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 16192 (109%)

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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.