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GeForce GTX 570 vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 570 makes use of a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 RAM runs at a speed of 950 MHz on this model. It features 480 SPUs along with 60 Texture Address Units and 40 ROPs.

Compare all that to the GeForce GTX 650 Ti 2GB, which comes with a GPU core clock speed of 928 MHz, and 2048 MB of GDDR5 RAM running at 1350 MHz through a 128-bit bus. It also is comprised of 768 SPUs, 64 TAUs, and 16 ROPs.

(No game benchmarks for this combination yet.)

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

As far as performance goes, the GeForce GTX 570 should in theory be quite a bit superior to the GeForce GTX 650 Ti 2GB overall. (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 should be a lot (approximately 35%) more effective at AF 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 should be much (about 97%) better at full screen anti-aliasing than the GeForce GTX 650 Ti 2GB, and able to handle higher screen 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

Amazon.com

GeForce GTX 650 Ti 2GB

Amazon.com

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

Model GeForce GTX 570 GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year December 2010 October 2012
Code Name GF110 GK106
Fab Process 40 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 1280 MB 2048 MB
Core Speed 732 MHz 928 MHz
Shader Speed 1464 MHz 928 MHz
Memory Speed 950 MHz (3800 MHz effective) 1350 MHz (5400 MHz effective)
Unified Shaders 480 768
Texture Mapping Units 60 64
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 128-bit
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3
Power (Max TDP) 219 watts 110 watts
Shader Model 5.0 5.0
Bandwidth 152000 MB/sec 86400 MB/sec
Texel Rate 43920 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 14848 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once 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 number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

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