GeForce 8800 GTS (G92) vs GeForce 9800 GTX+

Intro

Compare that to the GeForce 9800 GTX+, which makes use of a 55 nm design. nVidia has set the core speed at 738 MHz. The GDDR3 RAM runs at a speed of 1100 MHz on this card. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

In theory, the GeForce 9800 GTX+ is 13% faster than the GeForce 8800 GTS (G92) overall, because of its higher bandwidth. (explain)

GeForce 9800 GTX+		70400 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 8320 (13%)

Texel Rate

The GeForce 9800 GTX+ will be a bit (about 14%) more effective at AF than the GeForce 8800 GTS (G92). (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 5632 (14%)

Pixel Rate

The GeForce 9800 GTX+ should be a small bit (more or less 14%) better at FSAA than the GeForce 8800 GTS (G92), and also capable of handling higher screen resolutions more effectively. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 1408 (14%)

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 max amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure 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 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 number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.