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

Intro

The Radeon HD 6570 (OEM) 2GB comes with a GPU core speed of 650 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 480 SPUs, 24 TAUs, and 8 ROPs.

Compare all that to the Radeon R7 250, which has GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 24 TAUs, 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

In theory, the Radeon R7 250 should perform a bit faster than the Radeon HD 6570 (OEM) 2GB in general. (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 quite a bit (about 54%) better at texture filtering 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 will be a lot (about 54%) more effective at AA than the Radeon HD 6570 (OEM) 2GB, and capable of handling higher resolutions better. (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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

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