GeForce GT 430 (OEM) vs Radeon HD 7790

Intro

Compare those specifications to the Radeon HD 7790, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory is set to run at a speed of 1500 MHz on this model. It features 896 SPUs along with 56 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 7790		85 Watts
	Difference: 25 Watts (42%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7790 is 233% faster than the GeForce GT 430 (OEM) overall, due to its greater bandwidth. (explain)

Radeon HD 7790		96000 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 67200 (233%)

Texel Rate

The Radeon HD 7790 will be much (about 400%) faster with regards to anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 7790		56000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 44800 (400%)

Pixel Rate

The Radeon HD 7790 is quite a bit (more or less 471%) better at full screen anti-aliasing than the GeForce GT 430 (OEM), and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 7790		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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This 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 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 most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.