AMD Radeon R7 250
The AMD Radeon R7 250 is a low-end graphics card for desktop PCs, that has been presented in October 2013. It is based on the "Oland" GPU and manufactured in 28 nanometers. The card offers 384 shader units and an 128-bit memory interface (1 GB GDDR5, 74 GB/s). There are also some significantly slower versions with DDR3 memory.
The R7 250 uses the same chip as the older Radeon HD 8570 and 8670. Oland is based on the GCN architecture and offers 384 shaders, 24 TMUs and 8 ROPs. Compared to the HD 8670, the R7 250 clocks slightly higher at 1050 MHz for the Core (max. Boost) and 1150 MHz (4600 MHz effective) for the GDDR5 memory. JThe R7 250 supports DirectX 12 (FL 11_1), but lacks the new Trueaudio feature.
Depending on game and settings, the performance of the Radeon R7 250 is similar to the Nvidia GeForce GTX 650. Therefore, the card is on par with fast mid-range GPUs of the notebook segment, such as the GeForce GT 755M. Recent games (as of 2013) can be played fluently in 1366 x 768 pixels and medium or high settings. In some older or less demanding games, higher resolutions or additional AA/AF are possible.
The R7 250 supports well-known features like Eyefinity (max. 2 displays), but also some innovations such as a new turbo mode. Depending on power consumption and temperature, the core can be boosted up to 1050 MHz. However, there is no offical base clock respectively a lower limit.
Thanks to dynamic clock adjustments and the Zero Core technology, the R7 250 is very energy efficient while idle. Under load, the card is rated at a typical power consumption of 65 watts.
|Pipelines||384 - unified|
|Core Speed||1050 MHz|
|Memory Speed||1800 - 4600 MHz|
|Memory Bus Width||128 Bit|
|Max. Amount of Memory||2048 MB|
|DirectX||DirectX 12 (FL 11_1), Shader 5.0|
|Transistor Count||1040 Million|
|Features||Mantle, App Acceleration, CrossFire, PowerTune, ZeroCore, HD3D|
|Date of Announcement||01.10.2013|
|Information||PCI-E 3.0, HDMI mit 4K-Support|
|Link to Manufacturer Page||http://www.amd.com/us/products/desktop/g...|