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Radeon HD 5750 1GB vs Radeon R9 285

Intro

The Radeon HD 5750 1GB makes use of a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 memory works at a frequency of 1150 MHz on this model. It features 720(144x5) SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Compare all that to the Radeon R9 285, which has GPU core speed of 918 MHz, and 2048 MB of GDDR5 RAM running at 1375 MHz through a 256-bit bus. It also is made up of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB 86 Watts
Radeon R9 285 190 Watts
Difference: 104 Watts (121%)

Memory Bandwidth

The Radeon R9 285 should in theory perform quite a bit faster than the Radeon HD 5750 1GB overall. (explain)

Radeon R9 285 176000 MB/sec
Radeon HD 5750 1GB 73600 MB/sec
Difference: 102400 (139%)

Texel Rate

The Radeon R9 285 should be much (approximately 308%) better at texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon R9 285 102816 Mtexels/sec
Radeon HD 5750 1GB 25200 Mtexels/sec
Difference: 77616 (308%)

Pixel Rate

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

Radeon R9 285 29376 Mpixels/sec
Radeon HD 5750 1GB 11200 Mpixels/sec
Difference: 18176 (162%)

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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Radeon HD 5750 1GB

Amazon.com

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Radeon R9 285

Amazon.com

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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 Radeon HD 5750 1GB Radeon R9 285
Manufacturer AMD AMD
Year October 13, 2009 September 2014
Code Name Juniper LE Tonga PRO
Memory 1024 MB 2048 MB
Core Speed 700 MHz 918 MHz
Memory Speed 4600 MHz 5500 MHz
Power (Max TDP) 86 watts 190 watts
Bandwidth 73600 MB/sec 176000 MB/sec
Texel Rate 25200 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 720(144x5) 1792
Texture Mapping Units 36 112
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 5000 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 3.2 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 5750 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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