GeForce GTX 650 Ti vs Radeon HD 5770

Intro

Compare those specifications to the Radeon HD 5770, which features clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 2 Watts (2%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti should be a small bit faster than the Radeon HD 5770 in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 9600 (13%)

Texel Rate

The GeForce GTX 650 Ti will be quite a bit (approximately 75%) better at AF than the Radeon HD 5770. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 25392 (75%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 650 Ti is a better choice, not by a very large margin though. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 1248 (9%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.