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GeForce GTX 280 vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 280 has a core clock speed of 602 MHz and a GDDR3 memory frequency of 1107 MHz. It also uses a 512-bit memory bus, and makes use of a 65 nm design. It is made up of 240 SPUs, 80 TAUs, and 32 Raster Operation Units.

Compare those specifications to the GeForce GTX 650 Ti 2GB, which comes with core clock speeds of 928 MHz on the GPU, and 1350 MHz on the 2048 MB of GDDR5 memory. It features 768 SPUs along with 64 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce GTX 280 236 Watts
Difference: 126 Watts (115%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 is 64% quicker than the GeForce GTX 650 Ti 2GB overall, due to its greater bandwidth. (explain)

GeForce GTX 280 141696 MB/sec
GeForce GTX 650 Ti 2GB 86400 MB/sec
Difference: 55296 (64%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a lot (about 23%) better at texture filtering than the GeForce GTX 280. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 11232 (23%)

Pixel Rate

The GeForce GTX 280 should be quite a bit (about 30%) faster with regards to full screen anti-aliasing than the GeForce GTX 650 Ti 2GB, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 280 19264 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 4416 (30%)

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

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GeForce GTX 280

Amazon.com

Check prices at:

GeForce GTX 650 Ti 2GB

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 GTX 280 GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year June 17, 2008 October 2012
Code Name G200 GK106
Memory 1024 MB 2048 MB
Core Speed 602 MHz 928 MHz
Memory Speed 2214 MHz 5400 MHz
Power (Max TDP) 236 watts 110 watts
Bandwidth 141696 MB/sec 86400 MB/sec
Texel Rate 48160 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 240 768
Texture Mapping Units 80 64
Render Output Units 32 16
Bus Type GDDR3 GDDR5
Bus Width 512-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 1400 million 2540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 280

Amazon.com

Check prices at:

GeForce GTX 650 Ti 2GB

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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