GeForce 8500 GT vs GeForce GT 130

Intro

Compare those specs to the GeForce GT 130, which features core clock speeds of 500 MHz on the GPU, and 250 MHz on the 768 MB of DDR2 RAM. It features 48 SPUs as well as 24 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
GeForce GT 130		75 Watts
	Difference: 30 Watts (67%)

Memory Bandwidth

The GeForce 8500 GT should theoretically perform a bit faster than the GeForce GT 130 in general. (explain)

GeForce 8500 GT		12800 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 800 (7%)

Texel Rate

The GeForce GT 130 should be quite a bit (about 233%) faster with regards to AF than the GeForce 8500 GT. (explain)

GeForce GT 130		12000 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 8400 (233%)

Pixel Rate

The GeForce GT 130 is a lot (approximately 344%) faster with regards to anti-aliasing than the GeForce 8500 GT, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce GT 130		8000 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 6200 (344%)

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 (in units of MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once 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 can be applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.