HP LS990AV graphics card AMD FirePro V7900 vs HP LS991AV graphics card AMD FirePro V7900

Comparison of LS990AV, LS991AV

22 specifications	A HP LS990AV graphics card AMD FirePro V7900 Model LS990AV View product	B HP LS991AV graphics card AMD FirePro V7900 Model LS991AV View product
Processoridentical
Graphics processor family	AMD	AMD
Graphics processor	FirePro V7900	FirePro V7900
Maximum resolution	2560 x 1600 pixels	2560 x 1600 pixels
Stream processors	1280	1280
Memoryidentical
Discrete graphics card memory	2 GB	2 GB
Graphics card memory type	GDDR5	GDDR5
Memory bus	256 bit	256 bit
Memory bandwidth (max)	160 GB/s	160 GB/s
Ports & interfacesidentical
Interface type	PCI Express 2.1	PCI Express 2.1
HDMI ports quantityKnown for one	—Unknown — not stated by the source	0
DVI-D ports quantityKnown for one	—Unknown — not stated by the source	0
DVI-I ports quantityKnown for one	—Unknown — not stated by the source	0
DisplayPorts quantity	4	4
VGA (D-Sub) ports quantityKnown for one	—Unknown — not stated by the source	0
Performanceidentical
PhysX	No	No
TV tuner integrated	No	No
DirectX version	11	11
Shader model version	5.0	5.0
OpenGL version	4.1	4.1
Designidentical
Cooling type	Active	Active
System requirements1 differ
Windows operating systems supportedDiffers	Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium	Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Wi
Linux operating systems supported	Yes	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.