GeForce GT 440 3GB vs Radeon HD 5450

Intro

Compare those specifications to the Radeon HD 5450, which makes use of a 40 nm design. AMD has clocked the core speed at 650 MHz. The DDR3 memory works at a frequency of 800 MHz on this particular card. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 37 Watts (195%)

Memory Bandwidth

In theory, the GeForce GT 440 3GB will be 238% quicker than the Radeon HD 5450 in general, because of its greater bandwidth. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 3GB should be much (about 174%) faster with regards to texture filtering than the Radeon HD 5450. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 9056 (174%)

Pixel Rate

The GeForce GT 440 3GB is quite a bit (more or less 448%) better at anti-aliasing than the Radeon HD 5450, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 11656 (448%)

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 MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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 - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.