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GeForce 9800 GX2 vs GeForce GTX 950

Intro

The GeForce 9800 GX2 comes with a clock speed of 600 MHz and a GDDR3 memory speed of 1000 MHz. It also makes use of a 256-bit bus, and makes use of a 65 nm design. It is made up of 128 SPUs, 64 Texture Address Units, and 16 ROPs.

Compare all that to the GeForce GTX 950, which has GPU clock speed of 1024 MHz, and 2048 MB of GDDR5 RAM set to run at 1652 MHz through a 128-bit bus. It also features 768 Stream Processors, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950 90 Watts
GeForce 9800 GX2 197 Watts
Difference: 107 Watts (119%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GX2 should perform a lot faster than the GeForce GTX 950 in general. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce GTX 950 105728 MB/sec
Difference: 22272 (21%)

Texel Rate

The GeForce 9800 GX2 is quite a bit (approximately 56%) better at texture filtering than the GeForce GTX 950. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GTX 950 49152 Mtexels/sec
Difference: 27648 (56%)

Pixel Rate

The GeForce GTX 950 should be much (about 71%) more effective at FSAA than the GeForce 9800 GX2, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 950 32768 Mpixels/sec
GeForce 9800 GX2 19200 Mpixels/sec
Difference: 13568 (71%)

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 950

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 950
Manufacturer nVidia nVidia
Year Mar 2008 August 2015
Code Name G92 GM206
Memory 512 MB (x2) 2048 MB
Core Speed 600 MHz (x2) 1024 MHz
Memory Speed 2000 MHz (x2) 6608 MHz
Power (Max TDP) 197 watts 90 watts
Bandwidth 128000 MB/sec 105728 MB/sec
Texel Rate 76800 Mtexels/sec 49152 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 32768 Mpixels/sec
Unified Shaders 128 (x2) 768
Texture Mapping Units 64 (x2) 48
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 2940 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video 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 graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GTX 950

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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