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GeForce GTX 285 1GB vs Radeon R9 380 2G

Intro

The GeForce GTX 285 1GB makes use of a 55 nm design. nVidia has clocked the core speed at 648 MHz. The GDDR3 RAM works at a frequency of 1242 MHz on this model. It features 240 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon R9 380 2G, which makes use of a 28 nm design. AMD has set the core frequency at 970 MHz. The GDDR5 RAM is set to run at a frequency of 1425 MHz on this model. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G 190 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 14 Watts (7%)

Memory Bandwidth

The Radeon R9 380 2G should theoretically be just a bit faster than the GeForce GTX 285 1GB overall. (explain)

Radeon R9 380 2G 182400 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 23424 (15%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (approximately 110%) faster with regards to anisotropic filtering than the GeForce GTX 285 1GB. (explain)

Radeon R9 380 2G 108640 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 56800 (110%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 380 2G is superior to the GeForce GTX 285 1GB, by a large margin. (explain)

Radeon R9 380 2G 31040 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 10304 (50%)

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 R9 380 2G

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 R9 380 2G
Manufacturer nVidia AMD
Year January 15, 2009 June 2015
Code Name G200b Antigua PRO
Memory 1024 MB 2048 MB
Core Speed 648 MHz 970 MHz
Memory Speed 2484 MHz 5700 MHz
Power (Max TDP) 204 watts 190 watts
Bandwidth 158976 MB/sec 182400 MB/sec
Texel Rate 51840 Mtexels/sec 108640 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 240 1792
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 5000 million
Bus PCIe x16 2.0 PCIe 3.0 ×16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon R9 380 2G

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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