GeForce GT 430 1GB vs Radeon HD 4650 512MB

Intro

Compare all of that to the Radeon HD 4650 512MB, which comes with a clock speed of 600 MHz and a DDR2 memory speed of 500 MHz. It also uses a 128-bit bus, and makes use of a 55 nm design. It features 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 512MB		55 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 5 Watts (9%)

Memory Bandwidth

In theory, the GeForce GT 430 1GB should perform a lot faster than the Radeon HD 4650 512MB overall. (explain)

GeForce GT 430 1GB		28800 MB/sec
Radeon HD 4650 512MB		16000 MB/sec
	Difference: 12800 (80%)

Texel Rate

The Radeon HD 4650 512MB is a lot (more or less 71%) faster with regards to texture filtering than the GeForce GT 430 1GB. (explain)

Radeon HD 4650 512MB		19200 Mtexels/sec
GeForce GT 430 1GB		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 superior to the GeForce GT 430 1GB, by far. (explain)

Radeon HD 4650 512MB		4800 Mpixels/sec
GeForce GT 430 1GB		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 maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better 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 one second.

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