GeForce 9800 GTX+ vs GeForce GTX 460 1GB

Intro

Compare those specs to the GeForce GTX 460 1GB, which makes use of a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 memory works at a speed of 900 MHz on this particular model. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX+		145 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 15 Watts (10%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 1GB should in theory be much superior to the GeForce 9800 GTX+ overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 44800 (64%)

Texel Rate

The GeForce 9800 GTX+ is quite a bit (approximately 25%) faster with regards to AF than the GeForce GTX 460 1GB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 9432 (25%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 1GB is the winner, by a large margin. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 9792 (83%)

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 data (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the 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 maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.