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GeForce GTX 460 1GB vs GeForce GTX 660 Ti

Intro

The GeForce GTX 460 1GB features a GPU core speed of 675 MHz, and the 1024 MB of GDDR5 RAM is set to run at 900 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Compare those specifications to the GeForce GTX 660 Ti, which makes use of a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 memory works at a speed of 1500 MHz on this particular model. It features 1344 SPUs as well as 112 Texture Address Units and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti 150 Watts
GeForce GTX 460 1GB 160 Watts
Difference: 10 Watts (7%)

Memory Bandwidth

Theoretically, the GeForce GTX 660 Ti should be a lot faster than the GeForce GTX 460 1GB in general. (explain)

GeForce GTX 660 Ti 144000 MB/sec
GeForce GTX 460 1GB 115200 MB/sec
Difference: 28800 (25%)

Texel Rate

The GeForce GTX 660 Ti should be a lot (about 171%) faster with regards to AF than the GeForce GTX 460 1GB. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
GeForce GTX 460 1GB 37800 Mtexels/sec
Difference: 64680 (171%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 660 Ti is superior to the GeForce GTX 460 1GB, but not by far. (explain)

GeForce GTX 660 Ti 21960 Mpixels/sec
GeForce GTX 460 1GB 21600 Mpixels/sec
Difference: 360 (2%)

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

GeForce GTX 460 1GB

GeForce GTX 660 Ti

Specifications

Display Specifications

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Model GeForce GTX 460 1GB GeForce GTX 660 Ti
Manufacturer nVidia nVidia
Year July 2010 August 2012
Code Name GF104 GK104
Memory 1024 MB 2048 MB
Core Speed 675 MHz 915 MHz
Memory Speed 3600 MHz 6000 MHz
Power (Max TDP) 160 watts 150 watts
Bandwidth 115200 MB/sec 144000 MB/sec
Texel Rate 37800 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 21960 Mpixels/sec
Unified Shaders 336 1344
Texture Mapping Units 56 112
Render Output Units 32 24
Bus Type GDDR5 GDDR5
Bus Width 256-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 3540 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 maximum amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

GeForce GTX 460 1GB

GeForce GTX 660 Ti

Comments

One Response to “GeForce GTX 460 1GB vs GeForce GTX 660 Ti”
Dudas con algunas Tarjetas says:

[...] Re: Dudas con algunas Tarjetas En cuanto a consumo de energia la 660 consume menos de las 3 y si hay una notable diferencia entre cada una de ellas te dejo un link para que veas el rendimiento GeForce GTX 460 1GB vs GeForce GTX 660 Ti – Performance Comparison Benchmarks @ Hardware Compa... [...]

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