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GeForce GTX 285 1GB vs Radeon R9 380X

Intro

The GeForce GTX 285 1GB features a GPU core clock speed of 648 MHz, and the 1024 MB of GDDR3 memory is set to run at 1242 MHz through a 512-bit bus. It also is made up of 240 SPUs, 80 TAUs, and 32 ROPs.

Compare that to the Radeon R9 380X, which has a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

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

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

Texel Rate

The Radeon R9 380X will be quite a bit (more or less 140%) more effective at anisotropic filtering than the GeForce GTX 285 1GB. (explain)

Radeon R9 380X 124160 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 72320 (140%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 380X is a better choice, and very much so. (explain)

Radeon R9 380X 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 380X

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 380X
Manufacturer nVidia AMD
Year January 15, 2009 November 2015
Code Name G200b Tonga XT
Memory 1024 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 124160 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 240 2048
Texture Mapping Units 80 128
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 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 number of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its 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 the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon R9 380X

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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