GeForce 9800 GTX+ vs GeForce GTX 280

Intro

Compare that to the GeForce GTX 280, which comes with GPU core speed of 602 MHz, and 1024 MB of GDDR3 memory running at 1107 MHz through a 512-bit bus. It also is comprised of 240 Stream Processors, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX+		145 Watts
GeForce GTX 280		236 Watts
	Difference: 91 Watts (63%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 should perform quite a bit faster than the GeForce 9800 GTX+ overall. (explain)

GeForce GTX 280		141696 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 71296 (101%)

Texel Rate

The GeForce GTX 280 will be a little bit (about 2%) better at anisotropic filtering than the GeForce 9800 GTX+. (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce 9800 GTX+		47232 Mtexels/sec
	Difference: 928 (2%)

Pixel Rate

The GeForce GTX 280 will be much (about 63%) faster with regards to anti-aliasing than the GeForce 9800 GTX+, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 280		19264 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 7456 (63%)

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 (counted in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.