Product comparison · 2 gpus

GIGABYTE GV-R645SC-1GI graphics card AMD Radeon HD6450 vs GIGABYTE GV-R677D5-1GD graphics card AMD Radeon HD6770

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  • 27specifications compared
  • 13differ
  • 14identical
  • 8known for one product only

Key differences

  • Graphics processor
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:Radeon HD6450
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:Radeon HD6770
  • Processor frequency
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:625 MHz
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:775 MHz
  • Graphics card memory type
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:GDDR3
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:GDDR5
  • Memory bus
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:64 bit
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:128 bit
  • Memory clock speed
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:1600 MHz
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:4000 MHz
  • DVI-D ports quantity
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:1
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:0
  • DVI-I ports quantity
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:0
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:1
  • DisplayPorts quantity
    • GV-R645SC-1GI graphics card AMD Radeon HD6450:0
    • GV-R677D5-1GD graphics card AMD Radeon HD6770:1

Side by side

Differences highlightedShow differences only (off)
Comparison of GV-R645SC-1GI, GV-R677D5-1GD
35 specifications
Processor2 differ
Graphics processor familyAMDAMD
Graphics processorDiffersRadeon HD6450Radeon HD6770
Maximum resolution2560 x 1600 pixels2560 x 1600 pixels
Processor frequencyDiffers625 MHz775 MHz
Maximum analog resolution2048 x 1536 pixels2048 x 1536 pixels
Maximum digital resolution2560 x 1600 pixels2560 x 1600 pixels
Memory3 differ
Discrete graphics card memory1 GB1 GB
Graphics card memory typeDiffersGDDR3GDDR5
Memory busDiffers64 bit128 bit
Memory clock speedDiffers1600 MHz4000 MHz
Ports & interfaces4 differ
Interface typePCI Express 2.1PCI Express 2.1
HDMI ports quantity11
DVI-D ports quantityDiffers10
DVI-I ports quantityDiffers01
DisplayPorts quantityDiffers01
VGA (D-Sub) ports quantityDiffers10
Performanceidentical
PhysXNoNo
TV tuner integratedNoNo
DirectX version1111
OpenGL version4.14.1
Dual Link DVIYesYes
Design2 differ
Cooling typeDiffersPassiveActive
Form factorDiffersHalf-Height/Half-Length (HH/HL)Full-Height/Half-Length (FH/HL)
CertificationKnown for oneRoHSUnknown — not stated by the source
Bracket heightKnown for oneUnknown — not stated by the sourceFull-Height (FH)
Poweridentical
Minimum system power supplyKnown for one400 WUnknown — not stated by the source
System requirementsidentical
Minimum system requirementsKnown for onePCI-E 2.1Unknown — not stated by the source
Windows operating systems supportedKnown for oneUnknown — not stated by the sourceWindows 7 Home Basic, Windows 7 Home Basic x64, 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
Weight & dimensions2 differ
DepthDiffers21 mm42 mm
HeightDiffers126 mm134 mm
LengthKnown for oneUnknown — not stated by the source205 mm
Other featuresidentical
Mac compatibilityNoNo
HDMIYesYes
Compatible operating systemsKnown for oneWindows 7Unknown — not stated by the source
Technical detailsidentical
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS

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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