GeForce GTX 980 Ti vs Radeon HD 3650

Intro

Compare those specifications to the Radeon HD 3650, which makes use of a 55 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR4 RAM is set to run at a speed of 800 MHz on this card. It features 120(24x5) SPUs along with 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 980 Ti		250 Watts
	Difference: 172 Watts (221%)

Memory Bandwidth

In theory, the GeForce GTX 980 Ti will be 1213% faster than the Radeon HD 3650 overall, due to its higher data rate. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 310400 (1213%)

Texel Rate

The GeForce GTX 980 Ti is much (about 2934%) faster with regards to anisotropic filtering than the Radeon HD 3650. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 170200 (2934%)

Pixel Rate

The GeForce GTX 980 Ti should be quite a bit (more or less 3210%) faster with regards to AA than the Radeon HD 3650, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 93100 (3210%)

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 largest amount of data (counted in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out 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 graphics 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 graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.