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GeForce 9800 GX2 vs GeForce GTX 460 1GB

Intro

The GeForce 9800 GX2 uses a 65 nm design. nVidia has set the core frequency at 600 MHz. The GDDR3 memory works at a frequency of 1000 MHz on this card. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Compare those specs to the GeForce GTX 460 1GB, which features a GPU core clock speed of 675 MHz, and 1024 MB of GDDR5 RAM running at 900 MHz through a 256-bit bus. It also is made up of 336 Stream Processors, 56 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB 160 Watts
GeForce 9800 GX2 197 Watts
Difference: 37 Watts (23%)

Memory Bandwidth

Performance-wise, the GeForce 9800 GX2 should theoretically be just a bit superior to the GeForce GTX 460 1GB in general. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce GTX 460 1GB 115200 MB/sec
Difference: 12800 (11%)

Texel Rate

The GeForce 9800 GX2 should be a lot (more or less 103%) more effective at anisotropic filtering than the GeForce GTX 460 1GB. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GTX 460 1GB 37800 Mtexels/sec
Difference: 39000 (103%)

Pixel Rate

The GeForce GTX 460 1GB is a bit (about 13%) faster with regards to full screen anti-aliasing than the GeForce 9800 GX2, and will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 1GB 21600 Mpixels/sec
GeForce 9800 GX2 19200 Mpixels/sec
Difference: 2400 (13%)

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 460 1GB

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 460 1GB
Manufacturer nVidia nVidia
Year Mar 2008 July 2010
Code Name G92 GF104
Memory 512 MB (x2) 1024 MB
Core Speed 600 MHz (x2) 675 MHz
Memory Speed 2000 MHz (x2) 3600 MHz
Power (Max TDP) 197 watts 160 watts
Bandwidth 128000 MB/sec 115200 MB/sec
Texel Rate 76800 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 21600 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 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 460 1GB

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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