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GeForce GTX 650 vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 650 comes with a clock speed of 1058 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the GeForce GTX 650 Ti 2GB, which makes use of a 28 nm design. nVidia has clocked the core speed at 928 MHz. The GDDR5 RAM runs 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 speaking, the GeForce GTX 650 Ti 2GB should be 8% faster than the GeForce GTX 650 overall, due to its higher data rate. (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 should be quite a bit (more or less 75%) better 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 high levels of AA 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

Check prices at:

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 largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach 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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