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GeForce 9800 GX2 vs GeForce GTX 950

Intro

The GeForce 9800 GX2 has a clock speed of 600 MHz and a GDDR3 memory frequency of 1000 MHz. It also features a 256-bit bus, and uses a 65 nm design. It is comprised of 128 SPUs, 64 TAUs, and 16 ROPs.

Compare that to the GeForce GTX 950, which comes with clock speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs as well as 48 TAUs and 32 ROPs.

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, the GeForce 9800 GX2 should perform a lot faster than the GeForce GTX 950 overall. (explain)

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

Texel Rate

The GeForce 9800 GX2 is much (more or less 56%) faster with regards to 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

If running with high levels of AA is important to you, then the GeForce GTX 950 is the winner, by far. (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 (measured in MB per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, 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 amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to 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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