GeForce 9400 GT 256MB vs GeForce GT 130

Intro

Compare all that to the GeForce GT 130, which features GPU core speed of 500 MHz, and 768 MB of DDR2 memory running at 250 MHz through a 192-bit bus. It also features 48 SPUs, 24 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB		50 Watts
GeForce GT 130		75 Watts
	Difference: 25 Watts (50%)

Memory Bandwidth

Theoretically speaking, the GeForce 9400 GT 256MB should be 7% quicker than the GeForce GT 130 in general, due to its greater data rate. (explain)

GeForce 9400 GT 256MB		12800 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 800 (7%)

Texel Rate

The GeForce GT 130 is a lot (more or less 173%) faster with regards to anisotropic filtering than the GeForce 9400 GT 256MB. (explain)

GeForce GT 130		12000 Mtexels/sec
GeForce 9400 GT 256MB		4400 Mtexels/sec
	Difference: 7600 (173%)

Pixel Rate

The GeForce GT 130 should be quite a bit (approximately 264%) faster with regards to AA than the GeForce 9400 GT 256MB, and will be capable of handling higher resolutions better. (explain)

GeForce GT 130		8000 Mpixels/sec
GeForce 9400 GT 256MB		2200 Mpixels/sec
	Difference: 5800 (264%)

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 data (counted in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher 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 maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. 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 is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.