GeForce GT 430 1GB vs Radeon HD 5450

Intro

Compare that to the Radeon HD 5450, which uses a 40 nm design. AMD has clocked the core speed at 650 MHz. The DDR3 RAM runs at a frequency of 800 MHz on this particular model. It features 80(16x5) 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 5450		19 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 41 Watts (216%)

Memory Bandwidth

In theory, the GeForce GT 430 1GB should be a lot faster than the Radeon HD 5450 overall. (explain)

GeForce GT 430 1GB		28800 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 16000 (125%)

Texel Rate

The GeForce GT 430 1GB will be quite a bit (more or less 115%) faster with regards to anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GT 430 1GB		11200 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 6000 (115%)

Pixel Rate

The GeForce GT 430 1GB should be a bit (approximately 8%) faster with regards to anti-aliasing than the Radeon HD 5450, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GT 430 1GB		2800 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 200 (8%)

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 max amount of information (measured in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 can be processed in one second. This number is calculated by multiplying the total texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.