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GeForce 9800 GTX+ vs GeForce GTX 650 Ti 2GB

Intro

The GeForce 9800 GTX+ uses a 55 nm design. nVidia has set the core frequency at 738 MHz. The GDDR3 memory runs at a frequency of 1100 MHz on this model. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare all that to the GeForce GTX 650 Ti 2GB, which features 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 9800 GTX+ 145 Watts
Difference: 35 Watts (32%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti 2GB will be 23% faster than the GeForce 9800 GTX+ overall, because of its greater data rate. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
GeForce 9800 GTX+ 70400 MB/sec
Difference: 16000 (23%)

Texel Rate

The GeForce GTX 650 Ti 2GB is much (about 26%) more effective at AF than the GeForce 9800 GTX+. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce 9800 GTX+ 47232 Mtexels/sec
Difference: 12160 (26%)

Pixel Rate

The GeForce GTX 650 Ti 2GB should be much (more or less 26%) more effective at AA than the GeForce 9800 GTX+, and also should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
GeForce 9800 GTX+ 11808 Mpixels/sec
Difference: 3040 (26%)

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 9800 GTX+

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 9800 GTX+ GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year July 2008 October 2012
Code Name G92b GK106
Memory 512 MB 2048 MB
Core Speed 738 MHz 928 MHz
Memory Speed 2200 MHz 5400 MHz
Power (Max TDP) 145 watts 110 watts
Bandwidth 70400 MB/sec 86400 MB/sec
Texel Rate 47232 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 128 768
Texture Mapping Units 64 64
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 754 million 2540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 9800 GTX+

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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