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Product comparison · 2 gpus

GIGABYTE GV-R645D3-512I graphics card AMD Radeon HD6450 vs GIGABYTE GV-R677UD-1GD graphics card AMD Radeon HD6770

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  • 24specifications compared
  • 8differ
  • 16identical
  • 10known for one product only

Key differences

  • Graphics processor
    • Radeon HD6450
    • Radeon HD6770
  • Processor frequency
    • 625 MHz
    • 850 MHz
  • Discrete graphics card memory
    • 0.5 GB
    • 1 GB
  • Graphics card memory type
    • GDDR3
    • GDDR5
  • Memory bus
    • 64 bit
    • 128 bit
  • Memory clock speed
    • 1600 MHz
    • 4800 MHz
  • Minimum system power supply
    • 400 W
    • 450 W
  • Height
    • 121 mm
    • 134 mm

Side by side

Differences highlightedShow differences only
34 specifications
A

GIGABYTE

GV-R645D3-512I graphics card AMD Radeon HD6450

Model GV-R645D3-512I

View product
B

GIGABYTE

GV-R677UD-1GD graphics card AMD Radeon HD6770

Model GV-R677UD-1GD

View product
Processor2 differ
Graphics processor familyAMDAMD
Graphics processorDiffersRadeon HD6450Radeon HD6770
Maximum resolution2560 x 1600 pixels2560 x 1600 pixels
CUDANoNo
Processor frequencyDiffers625 MHz850 MHz
Maximum analog resolution2048 x 1536 pixels2048 x 1536 pixels
Memory4 differ
Discrete graphics card memoryDiffers0.5 GB1 GB
Graphics card memory typeDiffersGDDR3GDDR5
Memory busDiffers64 bit128 bit
Memory clock speedDiffers1600 MHz4800 MHz
Ports & interfacesidentical
Interface typePCI Express 2.1PCI Express 2.1
HDMI ports quantity11
DVI-I ports quantityKnown for one2
DisplayPorts quantityKnown for one1
DVI-D ports quantityKnown for one1
VGA (D-Sub) ports quantityKnown for one1
Performanceidentical
PhysXNoNo
TV tuner integratedNoNo
DirectX version1111
OpenGL version4.14.1
Dual Link DVIYesYes
Full HDYesYes
Designidentical
Cooling typeActiveActive
Bracket heightKnown for oneFull-Height (FH)
Form factorKnown for oneFull-Height/Full-Length (FH/FL)
CertificationRoHSRoHS
Power1 differ
Minimum system power supplyDiffers400 W450 W
Power consumption (typical)Known for one75 W
Weight & dimensions1 differ
LengthKnown for one222 mm
HeightDiffers121 mm134 mm
DepthKnown for one21.7 mm
Other featuresidentical
Mac compatibilityNoNo
HDMIYesYes
Compatible operating systemsKnown for oneWindows 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.

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