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GeForce GTX 285 2GB vs Geforce GTX 670

Intro

The GeForce GTX 285 2GB uses a 55 nm design. nVidia has clocked the core frequency at 648 MHz. The GDDR3 memory runs at a speed of 1242 MHz on this particular model. It features 240 SPUs along with 80 TAUs and 32 ROPs.

Compare those specs to the Geforce GTX 670, which comes with core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 34 Watts (20%)

Memory Bandwidth

The Geforce GTX 670 should theoretically be a lot faster than the GeForce GTX 285 2GB overall. (explain)

Geforce GTX 670 192000 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 33024 (21%)

Texel Rate

The Geforce GTX 670 will be a lot (about 98%) better at AF than the GeForce GTX 285 2GB. (explain)

Geforce GTX 670 102480 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 50640 (98%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 670 is superior to the GeForce GTX 285 2GB, and very much so. (explain)

Geforce GTX 670 29280 Mpixels/sec
GeForce GTX 285 2GB 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 2GB

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 2GB Geforce GTX 670
Manufacturer nVidia nVidia
Year January 15, 2009 May 2012
Code Name G200b GK104
Memory 2048 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: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

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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