GeForce GT 430 1GB vs Radeon HD 4890 2GB

Intro

Compare all of that to the Radeon HD 4890 2GB, which has core speeds of 1000 MHz on the GPU, and 975 MHz on the 2048 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
Radeon HD 4890 2GB		190 Watts
	Difference: 130 Watts (217%)

Memory Bandwidth

The Radeon HD 4890 2GB should theoretically be a lot faster than the GeForce GT 430 1GB overall. (explain)

Radeon HD 4890 2GB		124800 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 96000 (333%)

Texel Rate

The Radeon HD 4890 2GB should be a lot (approximately 257%) better at AF than the GeForce GT 430 1GB. (explain)

Radeon HD 4890 2GB		40000 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 28800 (257%)

Pixel Rate

The Radeon HD 4890 2GB should be quite a bit (approximately 471%) faster with regards to AA than the GeForce GT 430 1GB, and also capable of handling higher screen resolutions better. (explain)

Radeon HD 4890 2GB		16000 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 13200 (471%)

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 (in units of megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.