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Radeon HD 6570 (OEM) 2GB vs Radeon R5 M255

Intro

The Radeon HD 6570 (OEM) 2GB features core speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.

Compare all that to the Radeon R5 M255, which has core clock speeds of 940 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs along with 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 6570 (OEM) 2GB should perform quite a bit faster than the Radeon R5 M255 in general. (explain)

Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 48000 (300%)

Texel Rate

The Radeon R5 M255 should be much (more or less 21%) better at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon R5 M255 18800 Mtexels/sec
Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Difference: 3200 (21%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R5 M255 is superior to the Radeon HD 6570 (OEM) 2GB, by far. (explain)

Radeon R5 M255 7520 Mpixels/sec
Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Difference: 2320 (45%)

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 6570 (OEM) 2GB

Amazon.com

Check prices at:

Radeon R5 M255

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 Radeon HD 6570 (OEM) 2GB Radeon R5 M255
Manufacturer AMD AMD
Year February 2011 June 2014
Code Name Turks Jet Pro
Memory 1024 MB 2048 MB
Core Speed 650 MHz 940 MHz
Memory Speed 4000 MHz 2000 MHz
Power (Max TDP) 50 watts (Unknown) watts
Bandwidth 64000 MB/sec 16000 MB/sec
Texel Rate 15600 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 5200 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 480 320
Texture Mapping Units 24 20
Render Output Units 8 8
Bus Type GDDR5 DDR3
Bus Width 128-bit 64-bit
Fab Process 40 nm 28 nm
Transistors 715 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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

Display Prices

Hide Prices

Radeon HD 6570 (OEM) 2GB

Amazon.com

Check prices at:

Radeon R5 M255

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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