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GeForce GTX 580 vs GeForce GTX 660 Ti


Intro

The GeForce GTX 580 uses a 40 nm design. nVidia has clocked the core speed at 772 MHz. The GDDR5 RAM is set to run at a speed of 1002 MHz on this specific card. It features 512 SPUs as well as 64 TAUs and 48 ROPs.

Compare all that to the GeForce GTX 660 Ti, which features a core clock speed of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 28 nm design. It features 1344 SPUs, 112 Texture Address Units, and 24 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660 Ti 6010 points
GeForce GTX 580 4960 points
Difference: 1050 (21%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti 150 Watts
GeForce GTX 580 244 Watts
Difference: 94 Watts (63%)

Memory Bandwidth

In theory, the GeForce GTX 580 will be 34% quicker than the GeForce GTX 660 Ti overall, due to its greater bandwidth. (explain)

GeForce GTX 580 192384 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 48384 (34%)

Texel Rate

The GeForce GTX 660 Ti should be much (about 107%) more effective at AF than the GeForce GTX 580. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
GeForce GTX 580 49408 Mtexels/sec
Difference: 53072 (107%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 580 is a better choice, by a large margin. (explain)

GeForce GTX 580 37056 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 15096 (69%)

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 580

GeForce GTX 660 Ti

Specifications

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Model GeForce GTX 580 GeForce GTX 660 Ti
Manufacturer nVidia nVidia
Year November 2010 August 2012
Code Name GF110 GK104
Memory 1536 MB 2048 MB
Core Speed 772 MHz 915 MHz
Memory Speed 4008 MHz 6000 MHz
Power (Max TDP) 244 watts 150 watts
Bandwidth 192384 MB/sec 144000 MB/sec
Texel Rate 49408 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 21960 Mpixels/sec
Unified Shaders 512 1344
Texture Mapping Units 64 112
Render Output Units 48 24
Bus Type GDDR5 GDDR5
Bus Width 384-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 3000 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: Bandwidth is the max amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

GeForce GTX 580

GeForce GTX 660 Ti

Comments

2 Responses to “GeForce GTX 580 vs GeForce GTX 660 Ti”
osiris says:

Just a little correction.
The power difference or 94 watts is 38.5 % of the 580

Need help with a computer build - XboxMB - Xbox Message Boards says:

[...] it must be instantly better. I5 is for gaming I7 is for hard core multi tasking I believe. Stats: GeForce GTX 580 vs GeForce GTX 660 Ti – Performance Comparison Benchmarks @ Hardware Compare [...]

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