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GeForce 9800 GX2 vs GeForce GTX 465

Intro

The GeForce 9800 GX2 comes with core speeds of 600 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

Compare that to the GeForce GTX 465, which uses a 40 nm design. nVidia has clocked the core frequency at 607 MHz. The GDDR5 RAM runs at a speed of 802 MHz on this specific card. It features 352 SPUs along with 44 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GX2 197 Watts
GeForce GTX 465 200 Watts
Difference: 3 Watts (2%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GX2 will be 25% quicker than the GeForce GTX 465 in general, due to its higher bandwidth. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 25408 (25%)

Texel Rate

The GeForce 9800 GX2 is a lot (approximately 188%) faster with regards to AF than the GeForce GTX 465. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 50092 (188%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 465 is the winner, not by a very large margin though. (explain)

GeForce GTX 465 19424 Mpixels/sec
GeForce 9800 GX2 19200 Mpixels/sec
Difference: 224 (1%)

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 465

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

Display Specifications

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Model GeForce 9800 GX2 GeForce GTX 465
Manufacturer nVidia nVidia
Year Mar 2008 May 2010
Code Name G92 GF100
Memory 512 MB (x2) 1024 MB
Core Speed 600 MHz (x2) 607 MHz
Memory Speed 2000 MHz (x2) 3208 MHz
Power (Max TDP) 197 watts 200 watts
Bandwidth 128000 MB/sec 102592 MB/sec
Texel Rate 76800 Mtexels/sec 26708 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 19424 Mpixels/sec
Unified Shaders 128 (x2) 352
Texture Mapping Units 64 (x2) 44
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 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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 465

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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