GeForce 8800 GT 1GB vs GeForce GTS 250 1GB

Intro

Compare those specifications to the GeForce GTS 250 1GB, which makes use of a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 memory works at a frequency of 1100 MHz on this specific model. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 40 Watts (38%)

Memory Bandwidth

The GeForce GTS 250 1GB, in theory, should be quite a bit faster than the GeForce 8800 GT 1GB overall. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 12800 (22%)

Texel Rate

The GeForce GTS 250 1GB should be a lot (more or less 41%) faster with regards to AF than the GeForce 8800 GT 1GB. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 13632 (41%)

Pixel Rate

The GeForce GTS 250 1GB should be quite a bit (more or less 23%) faster with regards to FSAA than the GeForce 8800 GT 1GB, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 2208 (23%)

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 largest amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.