GeForce GT 430 (OEM) vs Radeon HD 4650 512MB

Intro

Compare those specs to the Radeon HD 4650 512MB, which has clock speeds of 600 MHz on the GPU, and 500 MHz on the 512 MB of DDR2 RAM. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 512MB		55 Watts
GeForce GT 430 (OEM)		60 Watts
	Difference: 5 Watts (9%)

Memory Bandwidth

The GeForce GT 430 (OEM) should theoretically be a lot faster than the Radeon HD 4650 512MB overall. (explain)

GeForce GT 430 (OEM)		28800 MB/sec
Radeon HD 4650 512MB		16000 MB/sec
	Difference: 12800 (80%)

Texel Rate

The Radeon HD 4650 512MB is much (more or less 71%) better at anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 4650 512MB		19200 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 8000 (71%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 4650 512MB is the winner, and very much so. (explain)

Radeon HD 4650 512MB		4800 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 2000 (71%)

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 data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's 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 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.