GeForce GTX 650 Ti vs Radeon HD 3650

Intro

Compare those specs to the Radeon HD 3650, which uses a 55 nm design. AMD has set the core frequency at 725 MHz. The GDDR4 memory runs at a frequency of 800 MHz on this specific model. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650		78 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 32 Watts (41%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 Ti should in theory be much superior to the Radeon HD 3650 in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 60800 (238%)

Texel Rate

The GeForce GTX 650 Ti will be quite a bit (more or less 924%) more effective at anisotropic filtering than the Radeon HD 3650. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 53592 (924%)

Pixel Rate

The GeForce GTX 650 Ti is much (about 412%) better at AA than the Radeon HD 3650, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 11948 (412%)

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 data (in units of megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.