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GeForce GTX 285 1GB vs Radeon R9 380 2G

Intro

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

Compare those specs to the Radeon R9 380 2G, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 RAM runs at a frequency of 1425 MHz on this specific card. It features 1792 SPUs as well as 112 TAUs 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

Theoretically speaking, the Radeon R9 380 2G should be 15% faster than the GeForce GTX 285 1GB in general, due to its greater data rate. (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 is a lot (more or less 110%) better at 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

The Radeon R9 380 2G should be a lot (approximately 50%) more effective at AA than the GeForce GTX 285 1GB, and will be able to handle higher resolutions better. (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

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.

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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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

Display Prices

Hide Prices

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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