GeForce 9800 GTX+ vs GeForce GTX 460 1GB

Intro

Compare those specifications to the GeForce GTX 460 1GB, which makes use of a 40 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR5 memory works at a speed of 900 MHz on this specific card. 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

Theoretically speaking, the GeForce GTX 460 1GB will be 64% quicker than the GeForce 9800 GTX+ overall, due to its greater data rate. (explain)

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

Texel Rate

The GeForce 9800 GTX+ should be quite a bit (more or less 25%) more effective at texture filtering 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

The GeForce GTX 460 1GB is quite a bit (about 83%) faster with regards to full screen anti-aliasing than the GeForce 9800 GTX+, and also will be capable of handling higher resolutions without slowing down too much. (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 (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.