GeForce GT 430 1GB vs GeForce GTX 970

Intro

Compare those specifications to the GeForce GTX 970, which has clock speeds of 1050 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 1664 SPUs as well as 104 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 970		145 Watts
	Difference: 85 Watts (142%)

Memory Bandwidth

The GeForce GTX 970 should theoretically perform much faster than the GeForce GT 430 1GB overall. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 195200 (678%)

Texel Rate

The GeForce GTX 970 is quite a bit (about 875%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 98000 (875%)

Pixel Rate

The GeForce GTX 970 will be quite a bit (about 2300%) faster with regards to anti-aliasing than the GeForce GT 430 1GB, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 64400 (2300%)

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 largest amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the 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 that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.