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GeForce GTX 285 1GB vs Radeon HD 6670 (OEM)

Intro

The GeForce GTX 285 1GB uses a 55 nm design. nVidia has set the core speed at 648 MHz. The GDDR3 memory works at a speed of 1242 MHz on this particular card. It features 240 SPUs along with 80 Texture Address Units and 32 ROPs.

Compare that to the Radeon HD 6670 (OEM), which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this particular card. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 141 Watts (224%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 1GB should be 148% faster than the Radeon HD 6670 (OEM) in general, because of its greater data rate. (explain)

GeForce GTX 285 1GB 158976 MB/sec
Radeon HD 6670 (OEM) 64000 MB/sec
Difference: 94976 (148%)

Texel Rate

The GeForce GTX 285 1GB should be quite a bit (more or less 170%) faster with regards to AF than the Radeon HD 6670 (OEM). (explain)

GeForce GTX 285 1GB 51840 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 32640 (170%)

Pixel Rate

The GeForce GTX 285 1GB should be a lot (approximately 224%) faster with regards to full screen anti-aliasing than the Radeon HD 6670 (OEM), and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 285 1GB 20736 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 14336 (224%)

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:

Radeon HD 6670 (OEM)

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 Radeon HD 6670 (OEM)
Manufacturer nVidia AMD
Year January 15, 2009 February 2011
Code Name G200b Turks
Memory 1024 MB 512 MB
Core Speed 648 MHz 800 MHz
Memory Speed 2484 MHz 4000 MHz
Power (Max TDP) 204 watts 63 watts
Bandwidth 158976 MB/sec 64000 MB/sec
Texel Rate 51840 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 240 480
Texture Mapping Units 80 24
Render Output Units 32 8
Bus Type GDDR3 GDDR5
Bus Width 512-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 715 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (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. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher 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 most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon HD 6670 (OEM)

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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