GeForce GT 430 1GB vs Radeon HD 4670 512MB

Intro

Compare all that to the Radeon HD 4670 512MB, which features GPU clock speed of 750 MHz, and 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
Radeon HD 4670 512MB		70 Watts
	Difference: 10 Watts (17%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4670 512MB should be just a bit faster than the GeForce GT 430 1GB overall. (explain)

Radeon HD 4670 512MB		32000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The Radeon HD 4670 512MB is much (approximately 114%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

Radeon HD 4670 512MB		24000 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 12800 (114%)

Pixel Rate

The Radeon HD 4670 512MB will be quite a bit (about 114%) better at AA than the GeForce GT 430 1GB, and also able to handle higher screen resolutions more effectively. (explain)

Radeon HD 4670 512MB		6000 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 3200 (114%)

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 information (counted in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated 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 filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.