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GeForce 9800 GT 1GB vs GeForce GTX 550 Ti

Intro

The GeForce 9800 GT 1GB comes with a GPU core speed of 600 MHz, and the 1024 MB of GDDR3 memory is set to run 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 those specs to the GeForce GTX 550 Ti, which has a clock frequency of 900 MHz and a GDDR5 memory frequency of 1026 MHz. It also makes use of a 192-bit bus, and uses a 40 nm design. It is made up of 192 SPUs, 32 TAUs, and 24 ROPs.

(No game benchmarks for this combination yet.)

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 a lot faster than the GeForce 9800 GT 1GB overall. (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 is a little bit (more or less 17%) more effective 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

If running with high levels of AA is important to you, then the GeForce GTX 550 Ti is superior to the GeForce 9800 GT 1GB, by a large margin. (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

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

Model GeForce 9800 GT 1GB GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year July 2008 March 2011
Code Name G92a/b GF116
Fab Process 65/55 nm 40 nm
Bus PCIe x16 2.0 PCIe 2.1 x16
Memory 1024 MB 1024 MB
Core Speed 600 MHz 900 MHz
Shader Speed 1500 MHz 1800 MHz
Memory Speed 900 MHz (1800 MHz effective) 1026 MHz (4104 MHz effective)
Unified Shaders 112 192
Texture Mapping Units 56 32
Render Output Units 16 24
Bus Type GDDR3 GDDR5
Bus Width 256-bit 192-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1
Power (Max TDP) 105 watts 116 watts
Shader Model 4.0 5.0
Bandwidth 57600 MB/sec 98496 MB/sec
Texel Rate 33600 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 21600 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

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