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GeForce GTX 460 2GB vs GeForce GTX 650

Intro

The GeForce GTX 460 2GB comes with a GPU core clock speed of 675 MHz, and the 2048 MB of GDDR5 memory is set to run at 900 MHz through a 256-bit bus. It also is made up of 336 SPUs, 56 TAUs, and 32 ROPs.

Compare those specifications to the GeForce GTX 650, which uses a 28 nm design. nVidia has clocked the core speed at 1058 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this specific model. It features 384 SPUs as well as 32 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 460 2GB 160 Watts
Difference: 96 Watts (150%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 2GB should theoretically be a lot superior to the GeForce GTX 650 overall. (explain)

GeForce GTX 460 2GB 115200 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 35200 (44%)

Texel Rate

The GeForce GTX 460 2GB will be just a bit (more or less 12%) faster with regards to anisotropic filtering than the GeForce GTX 650. (explain)

GeForce GTX 460 2GB 37800 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 3944 (12%)

Pixel Rate

The GeForce GTX 460 2GB should be a lot (approximately 28%) faster with regards to AA than the GeForce GTX 650, and also capable of handling higher screen resolutions better. (explain)

GeForce GTX 460 2GB 21600 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 4672 (28%)

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 460 2GB

Amazon.com

Check prices at:

GeForce GTX 650

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 460 2GB GeForce GTX 650
Manufacturer nVidia nVidia
Year July 2010 September 2012
Code Name GF104 GK107
Memory 2048 MB 1024 MB
Core Speed 675 MHz 1058 MHz
Memory Speed 3600 MHz 5000 MHz
Power (Max TDP) 160 watts 64 watts
Bandwidth 115200 MB/sec 80000 MB/sec
Texel Rate 37800 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 336 384
Texture Mapping Units 56 32
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 1300 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could 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 Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 2GB

Amazon.com

Check prices at:

GeForce GTX 650

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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