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

Intro

The Radeon HD 6570 (OEM) 2GB makes use of a 40 nm design. ATi has set the core speed at 650 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this specific card. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.

Compare those specs to the Radeon R7 250, which makes use of a 28 nm design. ATi has clocked the core frequency at 1000 MHz. The GDDR5 RAM runs at a speed of 1150 MHz on this particular card. It features 384 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

Radeon HD 6570 (OEM) 2GB Amazon.com Other US-based stores

Radeon R7 250 Amazon.com Other US-based stores

Specifications

Model	Radeon HD 6570 (OEM) 2GB	Radeon R7 250
Manufacturer	ATi	ATi
Year	February 2011	October 2013
Code Name	Turks	Oland XT
Fab Process	40 nm	28 nm
Bus	PCIe 2.1 x16	PCIe 3.0 x16
Memory	1024 MB	1024 MB
Core Speed	650 MHz	1000 MHz
Shader Speed	N/A MHz	(N/A) MHz
Memory Speed	1000 MHz (4000 MHz effective)	1150 MHz (4600 MHz effective)
Unified Shaders	480	384
Texture Mapping Units	24	24
Render Output Units	8	8
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
DirectX Version	DirectX 11	DirectX 11.2
OpenGL Version	OpenGL 4.1	OpenGL 4.3
Power (Max TDP)	50 watts	65 watts
Shader Model	5.0	5.0
Bandwidth	64000 MB/sec	73600 MB/sec
Texel Rate	15600 Mtexels/sec	24000 Mtexels/sec
Pixel Rate	5200 Mpixels/sec	8000 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.