GeForce GT 430 1GB vs GeForce GTX 460

Intro

Compare those specifications to the GeForce GTX 460, which has a clock speed of 675 MHz and a GDDR5 memory speed of 900 MHz. It also features a 192-bit memory bus, and makes use of a 40 nm design. It is made up of 336 SPUs, 56 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 460		150 Watts
	Difference: 90 Watts (150%)

Memory Bandwidth

The GeForce GTX 460 should theoretically perform much faster than the GeForce GT 430 1GB in general. (explain)

GeForce GTX 460		86400 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 57600 (200%)

Texel Rate

The GeForce GTX 460 will be quite a bit (approximately 238%) faster with regards to AF than the GeForce GT 430 1GB. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 26600 (238%)

Pixel Rate

The GeForce GTX 460 will be quite a bit (more or less 479%) more effective at full screen anti-aliasing than the GeForce GT 430 1GB, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 13400 (479%)

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 max amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses 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, High Dynamic Range and high 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 amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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