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GeForce GTX 570 vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 570 has a core clock speed of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also makes use of a 320-bit memory bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 60 TAUs, and 40 Raster Operation Units.

Compare all of that to the GeForce GTX 650 Ti 2GB, which features a GPU core 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 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce GTX 570 219 Watts
Difference: 109 Watts (99%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 should be 76% quicker than the GeForce GTX 650 Ti 2GB overall, because of its higher bandwidth. (explain)

GeForce GTX 570 152000 MB/sec
GeForce GTX 650 Ti 2GB 86400 MB/sec
Difference: 65600 (76%)

Texel Rate

The GeForce GTX 650 Ti 2GB is a lot (about 35%) more effective at anisotropic filtering than the GeForce GTX 570. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTX 570 43920 Mtexels/sec
Difference: 15472 (35%)

Pixel Rate

The GeForce GTX 570 will be quite a bit (approximately 97%) faster with regards to AA than the GeForce GTX 650 Ti 2GB, and able to handle higher resolutions while still performing well. (explain)

GeForce GTX 570 29280 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 14432 (97%)

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 570

GeForce GTX 650 Ti 2GB

Specifications

Display Specifications

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Model GeForce GTX 570 GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year December 2010 October 2012
Code Name GF110 GK106
Memory 1280 MB 2048 MB
Core Speed 732 MHz 928 MHz
Memory Speed 3800 MHz 5400 MHz
Power (Max TDP) 219 watts 110 watts
Bandwidth 152000 MB/sec 86400 MB/sec
Texel Rate 43920 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 480 768
Texture Mapping Units 60 64
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 3000 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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are 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 this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

GeForce GTX 570

GeForce GTX 650 Ti 2GB

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