AMD Radeon R9 270X User Manual

3. Select Enable CrossFire.
Note: The Choose from the following Rendered GPU combinations drop-
down list automatically populates with all available render GPUs based on the
selected display GPU. The list displays only GPUs that can be enabled for
AMD CrossFire. Other combinations are not listed here but may be listed on the
AMD CrossFire Diagnostics page.
4. From the list, select the appropriate combination.
Note: If the selected combination is not the most optimal choice for your system,
a message appears at the bottom of the page notifying you of this.
5. Click Apply.
When AMD CrossFire is enabled, the GPU Accelerated Physics feature might be
automatically disabled for all cards and displays in the configuration except those used
by AMD CrossFire.
AMD CrossFire™ Technology 17
© 2014 Advanced Micro Devices, Inc. AMD Radeon™ R9 270X/R9 270 Graphics

AMD Radeon R9 270X Specifications

General

Architecture	GCN 1.0
Stream Processors	1280
Core Clock	1000 MHz
Boost Clock	1050 MHz
Memory Type	GDDR5
Memory Bus	256-bit
TDP	180 W
GPU	Curacao XT
Process Size	28 nm
Transistors	2.8 Billion
Memory Clock	1400 MHz
Memory Bandwidth	179.2 GB/s
Compute Units	20
Texture Units	80
ROPs	32
DirectX	11.2
OpenCL	1.2
PCIe Version	3.0
Display Outputs	2x DVI, 1x HDMI, 1x DisplayPort
Memory Size	2 GB
Outputs	DVI, HDMI, DisplayPort