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

Intro

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

Compare that to the Radeon R7 250, which has a clock speed of 1000 MHz and a GDDR5 memory frequency of 1150 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 ROPs.

(No game benchmarks for this combination yet.)

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 should perform a bit faster than the Radeon HD 6570 (OEM) 2GB overall. (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 (approximately 54%) faster with regards to anisotropic 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

If using high levels of AA is important to you, then the Radeon R7 250 is superior to the Radeon HD 6570 (OEM) 2GB, and very much so. (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

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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

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