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GeForce 9800 GX2 vs GeForce GTX 560

Intro

The GeForce 9800 GX2 has core speeds of 600 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs along with 64 Texture Address Units and 16 ROPs.

Compare those specs to the GeForce GTX 560, which uses a 40 nm design. nVidia has clocked the core speed at 810 MHz. The GDDR5 RAM works at a frequency of 1001 MHz on this specific model. It features 336 SPUs along with 56 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 150 Watts
GeForce 9800 GX2 197 Watts
Difference: 47 Watts (31%)

Memory Bandwidth

The GeForce GTX 560, in theory, should perform a bit faster than the GeForce 9800 GX2 overall. (explain)

GeForce GTX 560 128128 MB/sec
GeForce 9800 GX2 128000 MB/sec
Difference: 128 (0%)

Texel Rate

The GeForce 9800 GX2 will be a lot (about 69%) faster with regards to texture filtering than the GeForce GTX 560. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GTX 560 45360 Mtexels/sec
Difference: 31440 (69%)

Pixel Rate

The GeForce GTX 560 is quite a bit (more or less 35%) faster with regards to anti-aliasing than the GeForce 9800 GX2, and will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 560 25920 Mpixels/sec
GeForce 9800 GX2 19200 Mpixels/sec
Difference: 6720 (35%)

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

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GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 9800 GX2 GeForce GTX 560
Manufacturer nVidia nVidia
Year Mar 2008 May 2011
Code Name G92 GF114
Memory 512 MB (x2) 1024 MB
Core Speed 600 MHz (x2) 810 MHz
Memory Speed 2000 MHz (x2) 4004 MHz
Power (Max TDP) 197 watts 150 watts
Bandwidth 128000 MB/sec 128128 MB/sec
Texel Rate 76800 Mtexels/sec 45360 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 25920 Mpixels/sec
Unified Shaders 128 (x2) 336
Texture Mapping Units 64 (x2) 56
Render Output Units 16 (x2) 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 65 nm 40 nm
Transistors 754 million 1950 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video 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 number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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