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GeForce GTX 285 1GB vs Radeon R9 270X

Intro

The GeForce GTX 285 1GB uses a 55 nm design. nVidia has clocked the core frequency at 648 MHz. The GDDR3 memory works at a speed of 1242 MHz on this specific model. It features 240 SPUs along with 80 TAUs and 32 ROPs.

Compare those specifications to the Radeon R9 270X, which features clock speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 24 Watts (13%)

Memory Bandwidth

Theoretically, the Radeon R9 270X should perform a bit faster than the GeForce GTX 285 1GB overall. (explain)

Radeon R9 270X 179200 MB/sec
GeForce GTX 285 1GB 158976 MB/sec
Difference: 20224 (13%)

Texel Rate

The Radeon R9 270X is quite a bit (about 54%) better at AF than the GeForce GTX 285 1GB. (explain)

Radeon R9 270X 80000 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 28160 (54%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 270X is superior to the GeForce GTX 285 1GB, by far. (explain)

Radeon R9 270X 32000 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 11264 (54%)

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

Radeon R9 270X

Amazon.com

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 270X
Manufacturer nVidia AMD
Year January 15, 2009 October 2013
Code Name G200b Curacao XT
Memory 1024 MB 2048 MB
Core Speed 648 MHz 1000 MHz
Memory Speed 2484 MHz 5600 MHz
Power (Max TDP) 204 watts 180 watts
Bandwidth 158976 MB/sec 179200 MB/sec
Texel Rate 51840 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 240 1280
Texture Mapping Units 80 80
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 2800 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip 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 core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Radeon R9 270X

Amazon.com

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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