Product comparison · 2 gpus

GIGABYTE GV-R455HM-512I graphics card AMD GDDR3 vs GIGABYTE GV-R555D5-1GI graphics card AMD

Key differences

Processor frequency
- GV-R455HM-512I graphics card AMD GDDR3:600 MHz
- GV-R555D5-1GI graphics card AMD:550 MHz
Graphics card memory type
- GV-R455HM-512I graphics card AMD GDDR3:GDDR3
- GV-R555D5-1GI graphics card AMD:GDDR5
Memory bus
- GV-R455HM-512I graphics card AMD GDDR3:64 bit
- GV-R555D5-1GI graphics card AMD:128 bit
Memory clock speed
- GV-R455HM-512I graphics card AMD GDDR3:1600 MHz
- GV-R555D5-1GI graphics card AMD:4000 MHz
Interface type
- GV-R455HM-512I graphics card AMD GDDR3:PCI Express 2.0
- GV-R555D5-1GI graphics card AMD:PCI Express 2.1
DirectX version
- GV-R455HM-512I graphics card AMD GDDR3:10.1
- GV-R555D5-1GI graphics card AMD:11
Shader model version
- GV-R455HM-512I graphics card AMD GDDR3:4.1
- GV-R555D5-1GI graphics card AMD:5.0
OpenGL version
- GV-R455HM-512I graphics card AMD GDDR3:2.1
- GV-R555D5-1GI graphics card AMD:3.1

Differences highlightedShow differences only

Comparison of GV-R455HM-512I, GV-R555D5-1GI
25 specifications	A GIGABYTE GV-R455HM-512I graphics card AMD GDDR3 Model GV-R455HM-512I View product	B GIGABYTE GV-R555D5-1GI graphics card AMD Model GV-R555D5-1GI View product
Processor1 differ
Graphics processor family	AMD	AMD
Maximum resolution	2560 x 1600 pixels	2560 x 1600 pixels
Processor frequencyDiffers	600 MHz	550 MHz
Stream processorsKnown for one	Unknown — not stated by the source	320
Memory3 differ
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	1 GB
Graphics card memory typeDiffers	GDDR3	GDDR5
Memory busDiffers	64 bit	128 bit
Memory clock speedDiffers	1600 MHz	4000 MHz
Ports & interfaces1 differ
Interface typeDiffers	PCI Express 2.0	PCI Express 2.1
HDMI ports quantity	1	1
DVI-I ports quantity	1	1
DVI ports quantity	1	1
VGA (D-Sub) ports quantity	1	1
Performance3 differ
DirectX versionDiffers	10.1	11
Shader model versionDiffers	4.1	5.0
OpenGL versionDiffers	2.1	3.1
HDCP	Yes	Yes
Dual Link DVI	Yes	Yes
Design2 differ
Cooling type	Active	Active
Bracket heightKnown for one	Unknown — not stated by the source	Full-Height (FH)
Form factorDiffers	Half-Height/Half-Length (HH/HL)	Full-Height/Half-Length (FH/HL)
CertificationDiffers	CE, FCC, RoHS	CE, RoHS
Other features1 differ
Mac compatibility	No	No
HDMI	Yes	Yes
Compatible operating systemsDiffers	Windows Vista/7	Wondows Vista/7

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.