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GeForce 9800 GT 1GB vs GeForce GTX 550 Ti

Intro

The GeForce 9800 GT 1GB features a GPU clock speed of 600 MHz, and the 1024 MB of GDDR3 memory runs at 900 MHz through a 256-bit bus. It also is made up of 112 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Compare all of that to the GeForce GTX 550 Ti, which has core clock speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs as well as 32 TAUs and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB 105 Watts
GeForce GTX 550 Ti 116 Watts
Difference: 11 Watts (10%)

Memory Bandwidth

The GeForce GTX 550 Ti, in theory, should perform quite a bit faster than the GeForce 9800 GT 1GB in general. (explain)

GeForce GTX 550 Ti 98496 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 40896 (71%)

Texel Rate

The GeForce 9800 GT 1GB will be a small bit (approximately 17%) better at AF than the GeForce GTX 550 Ti. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 4800 (17%)

Pixel Rate

The GeForce GTX 550 Ti will be a lot (more or less 125%) more effective at anti-aliasing than the GeForce 9800 GT 1GB, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
GeForce 9800 GT 1GB 9600 Mpixels/sec
Difference: 12000 (125%)

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.

Price Comparison

Display Prices

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GeForce 9800 GT 1GB

Amazon.com

GeForce GTX 550 Ti

Amazon.com

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 GT 1GB GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year July 2008 March 2011
Code Name G92a/b GF116
Memory 1024 MB 1024 MB
Core Speed 600 MHz 900 MHz
Memory Speed 1800 MHz 4104 MHz
Power (Max TDP) 105 watts 116 watts
Bandwidth 57600 MB/sec 98496 MB/sec
Texel Rate 33600 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 112 192
Texture Mapping Units 56 32
Render Output Units 16 24
Bus Type GDDR3 GDDR5
Bus Width 256-bit 192-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 1170 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

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