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GeForce 9800 GX2 vs GeForce GTX 470

Intro

The GeForce 9800 GX2 has a GPU core clock speed of 600 MHz, and the 512 MB of GDDR3 RAM is set to run at 1000 MHz through a 256-bit bus. It also is comprised of 128 Stream Processors, 64 Texture Address Units, and 16 ROPs.

Compare all of that to the GeForce GTX 470, which comes with clock speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 RAM. It features 448 SPUs as well as 56 Texture Address Units and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GX2 197 Watts
GeForce GTX 470 215 Watts
Difference: 18 Watts (9%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 470 should theoretically be a little bit superior to the GeForce 9800 GX2 overall. (explain)

GeForce GTX 470 133920 MB/sec
GeForce 9800 GX2 128000 MB/sec
Difference: 5920 (5%)

Texel Rate

The GeForce 9800 GX2 should be a lot (about 126%) better at anisotropic filtering than the GeForce GTX 470. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 42808 (126%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 470 is a better choice, by far. (explain)

GeForce GTX 470 24280 Mpixels/sec
GeForce 9800 GX2 19200 Mpixels/sec
Difference: 5080 (26%)

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 470

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 470
Manufacturer nVidia nVidia
Year Mar 2008 March 2010
Code Name G92 GF100
Memory 512 MB (x2) 1280 MB
Core Speed 600 MHz (x2) 607 MHz
Memory Speed 2000 MHz (x2) 3348 MHz
Power (Max TDP) 197 watts 215 watts
Bandwidth 128000 MB/sec 133920 MB/sec
Texel Rate 76800 Mtexels/sec 33992 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 24280 Mpixels/sec
Unified Shaders 128 (x2) 448
Texture Mapping Units 64 (x2) 56
Render Output Units 16 (x2) 40
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 320-bit
Fab Process 65 nm 40 nm
Transistors 754 million 3000 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

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 worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 470

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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