GeForce 9800 GT 1GB vs GeForce GTX 460

Intro

Compare those specifications to the GeForce GTX 460, which comes with a core clock speed of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 192-bit bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
GeForce GTX 460		150 Watts
	Difference: 45 Watts (43%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 should in theory be much better than the GeForce 9800 GT 1GB in general. (explain)

GeForce GTX 460		86400 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 28800 (50%)

Texel Rate

The GeForce GTX 460 will be a little bit (more or less 13%) more effective at anisotropic filtering than the GeForce 9800 GT 1GB. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 4200 (13%)

Pixel Rate

The GeForce GTX 460 should be quite a bit (about 69%) more effective at FSAA than the GeForce 9800 GT 1GB, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 6600 (69%)

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 data (measured in MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.