Please double check that this graphics card will fit your motherboard and in to the PC case as it is very large and occupies two slots - see form factor section below. I am aware that with some Dell PCs an internal cage blocks its installation so please please please check before purchasing. 

Here is the manufacturer's website for full specifications and functionality: http://sapphirenitro.sapphiretech.com/en/580-LE.html#specifications

This is a high end graphics card that is also suitable for mining cryptocurrencies. 

SAPPHIRE NITRO+ Radeon™ RX 580 8 GB Limited Edition
GPU
2304 stream Processors14 nm FinFET4th generation Graphics Core Next (GCN)Up to 1450 MHz Engine Boost Clock
Interface
PCI-Express 3.0
Memory
256 bit Memory BusGDDR5 Memory Type2000 MHz Memory Clock8192 MB Size
Displays
Maximum 5 Outputs
Output
1x DL-DVI-D2x HDMI 2.0b2x DisplayPort 1.4
API
OpenGL® 4.5OpenCL 2.0DirectX® 12Vulkan™ 1.0Shader Model 5.1
Feature
AMD CrossFire (bridgeless)AMD PowerTuneAMD ZeroCore Power TechnologyAMD FreeSync TechnologyAMD EyefinityAMD Tress FX technologyAMD Liquid VR technologyAMD TrueAudio Next technologyAMD HD3D TechnologyUniversal Video Decoder (UVD)XConnect™ technologyDolby® TrueHD and DTS-HD Master Audio™ SupportHigh Dynamic Range (HDR) support200K Hours CapacitorBlack Diamond 4 Chokes Intelligent Fan Control IIIDual UEFI BIOSNITRO Glow RGB LED lightsVR Friendly
Cooling
All-new Dual-X 95 mm fansExtra LED fansTwo ball bearingNITRO Free Flow redesigned airflowNITRO FanSafe and Fan Health CheckSAPPHIRE Fan ServiceSAPPHIRE Quick Connect system
Form Factor
2 Slots Occupied, ATX240 X 120 X 42 Dimension /mm
Power Consumption
225W
OS
Windows 10Windows 7
System Requirement
500 Watt Power Supply (Suggestion)1 x 8-pin + 1 x 6-pin (optional) AUX Power ConnectorCD-ROM or DVD-ROM drive for installing software