GeForce GTX 650 Ti 2GB vs Radeon HD 3650

Intro

Compare that to the Radeon HD 3650, which uses a 55 nm design. AMD has clocked the core speed at 725 MHz. The GDDR4 memory is set to run at a frequency of 800 MHz on this specific 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 650 Ti 2GB		110 Watts
	Difference: 32 Watts (41%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti 2GB should be 238% quicker than the Radeon HD 3650 overall, because of its higher bandwidth. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 60800 (238%)

Texel Rate

The GeForce GTX 650 Ti 2GB is a lot (approximately 924%) faster with regards to anisotropic filtering than the Radeon HD 3650. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 53592 (924%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 650 Ti 2GB is a better choice, and very much so. (explain)

GeForce GTX 650 Ti 2GB		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 information (measured in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could 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 the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.