GeForce GTX 660 Ti vs Radeon HD 3650 256MB

Intro

Compare that to the Radeon HD 3650 256MB, which makes use of a 55 nm design. AMD has set the core speed at 725 MHz. The DDR2 RAM runs at a frequency of 800 MHz on this particular model. It features 120(24x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB		78 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 72 Watts (92%)

Memory Bandwidth

The GeForce GTX 660 Ti should in theory be a lot faster than the Radeon HD 3650 256MB overall. (explain)

GeForce GTX 660 Ti		144000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 118400 (463%)

Texel Rate

The GeForce GTX 660 Ti is a lot (about 1667%) faster with regards to texture filtering than the Radeon HD 3650 256MB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 96680 (1667%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 660 Ti is the winner, by a large margin. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 19060 (657%)

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 (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.