GeForce 9800 GTX+ vs Geforce GTX 690

Intro

Compare all of that to the Geforce GTX 690, which features a clock speed of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX+		145 Watts
Geforce GTX 690		300 Watts
	Difference: 155 Watts (107%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 690 should be 446% quicker than the GeForce 9800 GTX+ overall, because of its higher bandwidth. (explain)

Geforce GTX 690		384512 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 314112 (446%)

Texel Rate

The Geforce GTX 690 should be quite a bit (about 396%) better at anisotropic filtering than the GeForce 9800 GTX+. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce 9800 GTX+		47232 Mtexels/sec
	Difference: 187008 (396%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 690 is a better choice, by far. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 46752 (396%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 clock 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per 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 - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.