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

Intro

The GeForce GTX 285 1GB comes with a core clock frequency of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also features a 512-bit bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which uses a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this particular model. It features 480 SPUs as well as 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should theoretically be a lot better than the Radeon HD 6670 (OEM) 1GB in general. (explain)

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

Texel Rate

The GeForce GTX 285 1GB is a lot (about 170%) faster with regards to AF than the Radeon HD 6670 (OEM) 1GB. (explain)

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

Pixel Rate

The GeForce GTX 285 1GB will be much (about 224%) more effective at anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 285 1GB 20736 Mpixels/sec
Radeon HD 6670 (OEM) 1GB 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

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Radeon HD 6670 (OEM) 1GB

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) 1GB
Manufacturer nVidia AMD
Year January 15, 2009 February 2011
Code Name G200b Turks
Memory 1024 MB 1024 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 maximum amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon HD 6670 (OEM) 1GB

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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