GeForce 9800 GTX+ vs GeForce GTX 460 (OEM)

Intro

Compare those specifications to the GeForce GTX 460 (OEM), which makes use of a 40 nm design. nVidia has set the core frequency at 650 MHz. The GDDR5 memory works at a frequency of 850 MHz on this model. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX+		145 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should be 55% quicker than the GeForce 9800 GTX+ in general, because of its greater data rate. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 38400 (55%)

Texel Rate

The GeForce 9800 GTX+ is much (approximately 30%) faster with regards to texture filtering than the GeForce GTX 460 (OEM). (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 10832 (30%)

Pixel Rate

The GeForce GTX 460 (OEM) is much (about 76%) faster with regards to FSAA than the GeForce 9800 GTX+, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 8992 (76%)

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 moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.