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GeForce 9600 GT 1GB vs GeForce 9800 GX2

Intro

The GeForce 9600 GT 1GB has a core clock speed of 650 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 256-bit memory bus, and makes use of a 65/55 nm design. It features 64 SPUs, 32 TAUs, and 16 ROPs.

Compare those specs to the GeForce 9800 GX2, which makes use of a 65 nm design. nVidia has set the core frequency at 600 MHz. The GDDR3 RAM runs at a speed of 1000 MHz on this specific card. It features 128 SPUs as well as 64 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9600 GT 1GB 95 Watts
GeForce 9800 GX2 197 Watts
Difference: 102 Watts (107%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GX2 should in theory be a lot better than the GeForce 9600 GT 1GB in general. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce 9600 GT 1GB 57600 MB/sec
Difference: 70400 (122%)

Texel Rate

The GeForce 9800 GX2 will be quite a bit (more or less 269%) more effective at AF than the GeForce 9600 GT 1GB. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce 9600 GT 1GB 20800 Mtexels/sec
Difference: 56000 (269%)

Pixel Rate

The GeForce 9800 GX2 should be much (about 85%) better at FSAA than the GeForce 9600 GT 1GB, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce 9800 GX2 19200 Mpixels/sec
GeForce 9600 GT 1GB 10400 Mpixels/sec
Difference: 8800 (85%)

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 9600 GT 1GB

Amazon.com

Check prices at:

GeForce 9800 GX2

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 9600 GT 1GB GeForce 9800 GX2
Manufacturer nVidia nVidia
Year Feb 2008 Mar 2008
Code Name G94a/b G92
Memory 1024 MB 512 MB (x2)
Core Speed 650 MHz 600 MHz (x2)
Memory Speed 1800 MHz 2000 MHz (x2)
Power (Max TDP) 95 watts 197 watts
Bandwidth 57600 MB/sec 128000 MB/sec
Texel Rate 20800 Mtexels/sec 76800 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 19200 Mpixels/sec
Unified Shaders 64 128 (x2)
Texture Mapping Units 32 64 (x2)
Render Output Units 16 16 (x2)
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit (x2)
Fab Process 65/55 nm 65 nm
Transistors 505 million 754 million
Bus PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of information (counted 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 clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce 9600 GT 1GB

Amazon.com

Check prices at:

GeForce 9800 GX2

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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