GeForce 8600 GT 1GB DDR2 vs GeForce GT 130

Intro

Compare all that to the GeForce GT 130, which comes with a core clock frequency of 500 MHz and a DDR2 memory frequency of 250 MHz. It also uses a 192-bit bus, and makes use of a 55 nm design. It is comprised of 48 SPUs, 24 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2		47 Watts
GeForce GT 130		75 Watts
	Difference: 28 Watts (60%)

Memory Bandwidth

In theory, the GeForce 8600 GT 1GB DDR2 should be a small bit faster than the GeForce GT 130 overall. (explain)

GeForce 8600 GT 1GB DDR2		12800 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 800 (7%)

Texel Rate

The GeForce GT 130 will be much (approximately 39%) better at AF than the GeForce 8600 GT 1GB DDR2. (explain)

GeForce GT 130		12000 Mtexels/sec
GeForce 8600 GT 1GB DDR2		8640 Mtexels/sec
	Difference: 3360 (39%)

Pixel Rate

The GeForce GT 130 should be a lot (more or less 85%) faster with regards to FSAA than the GeForce 8600 GT 1GB DDR2, and will be able to handle higher resolutions better. (explain)

GeForce GT 130		8000 Mpixels/sec
GeForce 8600 GT 1GB DDR2		4320 Mpixels/sec
	Difference: 3680 (85%)

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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on 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 memory bandwidth is, the lower the ability to get to the max fill rate.