GeForce GT 430 (OEM) vs Radeon HD 5770

Intro

Compare that to the Radeon HD 5770, which uses a 40 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 memory is set to run at a frequency of 1200 MHz on this card. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 5770		108 Watts
	Difference: 48 Watts (80%)

Memory Bandwidth

In theory, the Radeon HD 5770 should be much faster than the GeForce GT 430 (OEM) overall. (explain)

Radeon HD 5770		76800 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 48000 (167%)

Texel Rate

The Radeon HD 5770 will be quite a bit (approximately 204%) more effective at texture filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 5770		34000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 22800 (204%)

Pixel Rate

The Radeon HD 5770 should be quite a bit (about 386%) faster with regards to AA than the GeForce GT 430 (OEM), and also able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 5770		13600 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 10800 (386%)

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 MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.