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GeForce GTX 285 1GB vs Geforce GTX 670

Intro

The GeForce GTX 285 1GB comes with clock speeds of 648 MHz on the GPU, and 1242 MHz on the 1024 MB of GDDR3 memory. It features 240 SPUs along with 80 Texture Address Units and 32 ROPs.

Compare all of that to the Geforce GTX 670, which uses a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 memory is set to run at a speed of 1500 MHz on this model. It features 1344 SPUs along with 112 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 34 Watts (20%)

Memory Bandwidth

In theory, the Geforce GTX 670 should be 21% faster than the GeForce GTX 285 1GB overall, because of its higher bandwidth. (explain)

Geforce GTX 670 192000 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 33024 (21%)

Texel Rate

The Geforce GTX 670 should be a lot (about 98%) more effective at texture filtering than the GeForce GTX 285 1GB. (explain)

Geforce GTX 670 102480 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 50640 (98%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 670 is the winner, by a large margin. (explain)

Geforce GTX 670 29280 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 8544 (41%)

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 285 1GB

Amazon.com

Check prices at:

Geforce GTX 670

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 285 1GB Geforce GTX 670
Manufacturer nVidia nVidia
Year January 15, 2009 May 2012
Code Name G200b GK104
Memory 1024 MB 2048 MB
Core Speed 648 MHz 915 MHz
Memory Speed 2484 MHz 6000 MHz
Power (Max TDP) 204 watts 170 watts
Bandwidth 158976 MB/sec 192000 MB/sec
Texel Rate 51840 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 29280 Mpixels/sec
Unified Shaders 240 1344
Texture Mapping Units 80 112
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 3540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.2

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 amount of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Geforce GTX 670

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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