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GeForce GTX 280 vs GeForce GTX 550 Ti

Intro

The GeForce GTX 280 features core clock speeds of 602 MHz on the GPU, and 1107 MHz on the 1024 MB of GDDR3 memory. It features 240 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 550 Ti, which has a clock speed of 900 MHz and a GDDR5 memory speed 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 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
GeForce GTX 280 236 Watts
Difference: 120 Watts (103%)

Memory Bandwidth

In theory, the GeForce GTX 280 will be 44% faster than the GeForce GTX 550 Ti overall, due to its higher bandwidth. (explain)

GeForce GTX 280 141696 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 43200 (44%)

Texel Rate

The GeForce GTX 280 should be quite a bit (more or less 67%) better at texture filtering than the GeForce GTX 550 Ti. (explain)

GeForce GTX 280 48160 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 19360 (67%)

Pixel Rate

The GeForce GTX 550 Ti will be a small bit (more or less 12%) faster with regards to full screen anti-aliasing than the GeForce GTX 280, and also will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 2336 (12%)

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 GTX 280

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 GTX 280 GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year June 17, 2008 March 2011
Code Name G200 GF116
Memory 1024 MB 1024 MB
Core Speed 602 MHz 900 MHz
Memory Speed 2214 MHz 4104 MHz
Power (Max TDP) 236 watts 116 watts
Bandwidth 141696 MB/sec 98496 MB/sec
Texel Rate 48160 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 240 192
Texture Mapping Units 80 32
Render Output Units 32 24
Bus Type GDDR3 GDDR5
Bus Width 512-bit 192-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 1170 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount 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 per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

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