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GeForce GTX 285 1GB vs Geforce GTX 670

Intro

The GeForce GTX 285 1GB comes with a GPU core clock speed of 648 MHz, and the 1024 MB of GDDR3 RAM is set to run at 1242 MHz through a 512-bit bus. It also features 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Geforce GTX 670, which has GPU core speed of 915 MHz, and 2048 MB of GDDR5 RAM running at 1500 MHz through a 256-bit bus. It also is comprised of 1344 SPUs, 112 TAUs, and 32 Raster Operation Units.

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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

Theoretically speaking, the Geforce GTX 670 should perform quite a bit faster than the GeForce GTX 285 1GB overall. (explain)

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

Texel Rate

The Geforce GTX 670 will be quite a bit (approximately 98%) faster with regards to 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

The Geforce GTX 670 should be a lot (about 41%) more effective at FSAA than the GeForce GTX 285 1GB, and also should be capable of handling higher screen resolutions without slowing down too much. (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 largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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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.

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