GeForce GT 430 1GB vs Radeon HD 5770

Intro

Compare all of that to the Radeon HD 5770, which makes use of a 40 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 memory runs at a speed of 1200 MHz on this model. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
Radeon HD 5770		108 Watts
	Difference: 48 Watts (80%)

Memory Bandwidth

The Radeon HD 5770, in theory, should be a lot faster than the GeForce GT 430 1GB in general. (explain)

Radeon HD 5770		76800 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 48000 (167%)

Texel Rate

The Radeon HD 5770 will be quite a bit (more or less 204%) faster with regards to AF than the GeForce GT 430 1GB. (explain)

Radeon HD 5770		34000 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 22800 (204%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 5770 is superior to the GeForce GT 430 1GB, and very much so. (explain)

Radeon HD 5770		13600 Mpixels/sec
GeForce GT 430 1GB		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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at 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 card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.