GeForce GT 430 1GB vs Radeon HD 5770

Intro

Compare that to the Radeon HD 5770, which comes with a clock speed of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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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

Performance-wise, the Radeon HD 5770 should theoretically be much better 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 should be quite a bit (approximately 204%) better at texture filtering 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 high levels of AA is important to you, then the Radeon HD 5770 is the winner, by a large margin. (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 (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.