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GeForce GTX 460 vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 460 features a core clock frequency of 675 MHz and a GDDR5 memory speed of 900 MHz. It also features a 192-bit bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 TAUs, and 24 Raster Operation Units.

Compare all of that to the GeForce GTX 650 Ti 2GB, which comes with GPU clock speed of 928 MHz, and 2048 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is comprised of 768 SPUs, 64 Texture Address Units, 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 460 150 Watts
Difference: 40 Watts (36%)

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The GeForce GTX 650 Ti 2GB will be quite a bit (more or less 57%) faster with regards to texture filtering than the GeForce GTX 460. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTX 460 37800 Mtexels/sec
Difference: 21592 (57%)

Pixel Rate

The GeForce GTX 460 will be a small bit (approximately 9%) more effective at full screen anti-aliasing than the GeForce GTX 650 Ti 2GB, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 460 16200 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 1352 (9%)

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

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 460 GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year July 2010 October 2012
Code Name GF104 GK106
Memory 768 MB 2048 MB
Core Speed 675 MHz 928 MHz
Memory Speed 3600 MHz 5400 MHz
Power (Max TDP) 150 watts 110 watts
Bandwidth 86400 MB/sec 86400 MB/sec
Texel Rate 37800 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 16200 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 336 768
Texture Mapping Units 56 64
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2540 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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 460

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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