GeForce GT 430 (OEM) vs Radeon HD 7770

Intro

Compare those specifications to the Radeon HD 7770, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM is set to run at a frequency of 1125 MHz on this particular card. It features 640 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 (OEM)		60 Watts
Radeon HD 7770		80 Watts
	Difference: 20 Watts (33%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7770 is 150% faster than the GeForce GT 430 (OEM) in general, because of its higher data rate. (explain)

Radeon HD 7770		72000 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 43200 (150%)

Texel Rate

The Radeon HD 7770 will be quite a bit (more or less 257%) better at AF than the GeForce GT 430 (OEM). (explain)

Radeon HD 7770		40000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 28800 (257%)

Pixel Rate

The Radeon HD 7770 should be quite a bit (about 471%) faster with regards to full screen anti-aliasing than the GeForce GT 430 (OEM), and also should be able to handle higher resolutions more effectively. (explain)

Radeon HD 7770		16000 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 13200 (471%)

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 max amount of data (in units of MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum 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 speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.