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Radeon HD 6570 (OEM) 2GB vs Radeon R7 250

Intro

The Radeon HD 6570 (OEM) 2GB uses a 40 nm design. AMD has set the core frequency at 650 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this card. It features 480 SPUs along with 24 TAUs and 8 ROPs.

Compare all of that to the Radeon R7 250, which has GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also features 384 Stream Processors, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB 50 Watts
Radeon R7 250 65 Watts
Difference: 15 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 will be 15% quicker than the Radeon HD 6570 (OEM) 2GB in general, because of its higher bandwidth. (explain)

Radeon R7 250 73600 MB/sec
Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Difference: 9600 (15%)

Texel Rate

The Radeon R7 250 is much (more or less 54%) faster with regards to AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon R7 250 24000 Mtexels/sec
Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Difference: 8400 (54%)

Pixel Rate

The Radeon R7 250 should be much (more or less 54%) better at AA than the Radeon HD 6570 (OEM) 2GB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R7 250 8000 Mpixels/sec
Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Difference: 2800 (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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Radeon HD 6570 (OEM) 2GB

Amazon.com

Radeon R7 250

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 Radeon HD 6570 (OEM) 2GB Radeon R7 250
Manufacturer AMD AMD
Year February 2011 October 2013
Code Name Turks Oland XT
Memory 1024 MB 1024 MB
Core Speed 650 MHz 1000 MHz
Memory Speed 4000 MHz 4600 MHz
Power (Max TDP) 50 watts 65 watts
Bandwidth 64000 MB/sec 73600 MB/sec
Texel Rate 15600 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 5200 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 480 384
Texture Mapping Units 24 24
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 715 million 1040 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core 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 number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

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