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GeForce GTX 285 2GB vs Radeon R9 380 4G

Intro

The GeForce GTX 285 2GB features a GPU core speed of 648 MHz, and the 2048 MB of GDDR3 memory runs at 1242 MHz through a 512-bit bus. It also is comprised of 240 Stream Processors, 80 TAUs, and 32 ROPs.

Compare all of that to the Radeon R9 380 4G, which features a GPU core clock speed of 970 MHz, and 4096 MB of GDDR5 memory set to run at 1425 MHz through a 256-bit bus. It also is made up of 1792 Stream Processors, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G 190 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 14 Watts (7%)

Memory Bandwidth

In theory, the Radeon R9 380 4G will be 15% quicker than the GeForce GTX 285 2GB in general, due to its greater bandwidth. (explain)

Radeon R9 380 4G 182400 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 23424 (15%)

Texel Rate

The Radeon R9 380 4G is a lot (more or less 110%) more effective at anisotropic filtering than the GeForce GTX 285 2GB. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 56800 (110%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380 4G is superior to the GeForce GTX 285 2GB, and very much so. (explain)

Radeon R9 380 4G 31040 Mpixels/sec
GeForce GTX 285 2GB 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 2GB

Amazon.com

Check prices at:

Radeon R9 380 4G

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 Radeon R9 380 4G
Manufacturer nVidia AMD
Year January 15, 2009 June 2015
Code Name G200b Antigua PRO
Memory 2048 MB 4096 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: Memory bandwidth is the max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

Radeon R9 380 4G

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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