GeForce GT 430 1GB vs Radeon HD 6570 (OEM) 2GB

Intro

Compare those specifications to the Radeon HD 6570 (OEM) 2GB, which has a clock frequency of 650 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It features 480 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 10 Watts (20%)

Memory Bandwidth

The Radeon HD 6570 (OEM) 2GB should in theory perform a lot faster than the GeForce GT 430 1GB in general. (explain)

Radeon HD 6570 (OEM) 2GB		64000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The Radeon HD 6570 (OEM) 2GB should be much (more or less 39%) more effective at texture filtering than the GeForce GT 430 1GB. (explain)

Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 4400 (39%)

Pixel Rate

The Radeon HD 6570 (OEM) 2GB is quite a bit (about 86%) better at AA than the GeForce GT 430 1GB, and will be able to handle higher resolutions while still performing well. (explain)

Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 2400 (86%)

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 data (measured in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.