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GeForce GTX 650 vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 650 has a GPU core speed of 1058 MHz, and the 1024 MB of GDDR5 RAM runs at 1250 MHz through a 128-bit bus. It also is made up of 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Compare all of that to the GeForce GTX 650 Ti 2GB, which uses a 28 nm design. nVidia has set the core speed at 928 MHz. The GDDR5 RAM works at a speed of 1350 MHz on this particular model. It features 768 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 650 Ti 2GB 110 Watts
Difference: 46 Watts (72%)

Memory Bandwidth

Theoretically, the GeForce GTX 650 Ti 2GB should perform a bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 6400 (8%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be quite a bit (more or less 75%) more effective at texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 25536 (75%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 650 is superior to the GeForce GTX 650 Ti 2GB, but it probably won't make a huge difference. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 2080 (14%)

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 650

Amazon.com

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GeForce GTX 650 Ti 2GB

Amazon.com

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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 650 GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year September 2012 October 2012
Code Name GK107 GK106
Memory 1024 MB 2048 MB
Core Speed 1058 MHz 928 MHz
Memory Speed 5000 MHz 5400 MHz
Power (Max TDP) 64 watts 110 watts
Bandwidth 80000 MB/sec 86400 MB/sec
Texel Rate 33856 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 384 768
Texture Mapping Units 32 64
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1300 million 2540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 650

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.

Comments

3 Responses to “GeForce GTX 650 vs GeForce GTX 650 Ti 2GB”
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