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GeForce GTX 285 1GB vs Radeon R9 285

Intro

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

Compare those specs to the Radeon R9 285, which has a clock frequency of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the Radeon R9 285 should be 11% quicker than the GeForce GTX 285 1GB in general, due to its higher data rate. (explain)

Radeon R9 285 176000 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 17024 (11%)

Texel Rate

The Radeon R9 285 should be much (approximately 98%) faster with regards to AF than the GeForce GTX 285 1GB. (explain)

Radeon R9 285 102816 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 50976 (98%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 285 is a better choice, by far. (explain)

Radeon R9 285 29376 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 8640 (42%)

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 285

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 285
Manufacturer nVidia AMD
Year January 15, 2009 September 2014
Code Name G200b Tonga PRO
Memory 1024 MB 2048 MB
Core Speed 648 MHz 918 MHz
Memory Speed 2484 MHz 5500 MHz
Power (Max TDP) 204 watts 190 watts
Bandwidth 158976 MB/sec 176000 MB/sec
Texel Rate 51840 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 29376 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 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If 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 can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon R9 285

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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