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GeForce 9800 GX2 vs GeForce GTX 965M

Intro

The GeForce 9800 GX2 comes with core clock 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 Texture Address Units and 16 ROPs.

Compare those specifications to the GeForce GTX 965M, which features GPU clock speed of 944 MHz, and 2048 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is made up of 1024 Stream Processors, 64 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
GeForce 9800 GX2 197 Watts
Difference: 137 Watts (228%)

Memory Bandwidth

The GeForce 9800 GX2 should in theory be quite a bit faster than the GeForce GTX 965M overall. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce GTX 965M 64000 MB/sec
Difference: 64000 (100%)

Texel Rate

The GeForce 9800 GX2 will be quite a bit (more or less 27%) better at texture filtering than the GeForce GTX 965M. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GTX 965M 60416 Mtexels/sec
Difference: 16384 (27%)

Pixel Rate

The GeForce GTX 965M should be much (approximately 57%) better at AA than the GeForce 9800 GX2, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 965M 30208 Mpixels/sec
GeForce 9800 GX2 19200 Mpixels/sec
Difference: 11008 (57%)

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 965M

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 965M
Manufacturer nVidia nVidia
Year Mar 2008 January 5 2015
Code Name G92 GM204
Memory 512 MB (x2) 2048 MB
Core Speed 600 MHz (x2) 944 MHz
Memory Speed 2000 MHz (x2) 4000 MHz
Power (Max TDP) 197 watts 60 watts
Bandwidth 128000 MB/sec 64000 MB/sec
Texel Rate 76800 Mtexels/sec 60416 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 30208 Mpixels/sec
Unified Shaders 128 (x2) 1024
Texture Mapping Units 64 (x2) 64
Render Output Units 16 (x2) 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 65 nm 28 nm
Transistors 754 million (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 965M

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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