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Product comparison · 2 gpus

GIGABYTE GV-R645-1GI graphics card AMD Radeon HD6450 vs GIGABYTE GV-R787OC-2GD graphics card AMD Radeon HD7870

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  • 26specifications compared
  • 15differ
  • 11identical
  • 23known for one product only

Key differences

  • Graphics processor
    • Radeon HD6450
    • Radeon HD7870
  • Maximum resolution
    • 2560 x 1600 pixels
    • 4096 x 2160 pixels
  • Processor frequency
    • 625 MHz
    • 1100 MHz
  • Discrete graphics card memory
    • 1 GB
    • 2 GB
  • Graphics card memory type
    • GDDR3
    • GDDR5
  • Memory bus
    • 64 bit
    • 256 bit
  • Memory clock speed
    • 1100 MHz
    • 4800 MHz
  • Interface type
    • PCI Express 2.1
    • PCI Express 3.0

Side by side

Differences highlightedShow differences only
49 specifications
A

GIGABYTE

GV-R645-1GI graphics card AMD Radeon HD6450

Model GV-R645-1GI

View product
B

GIGABYTE

GV-R787OC-2GD graphics card AMD Radeon HD7870

Model GV-R787OC-2GD

View product
Processor3 differ
Graphics processorDiffersRadeon HD6450Radeon HD7870
Maximum resolutionDiffers2560 x 1600 pixels4096 x 2160 pixels
CUDAKnown for oneNo
Processor frequencyDiffers625 MHz1100 MHz
Shader clockKnown for one1100 MHz
Graphics card RAMDACKnown for one400 MHz
Stream processorsKnown for one1280
Processor coresKnown for one1
Memory4 differ
Discrete graphics card memoryDiffers1 GB2 GB
Graphics card memory typeDiffersGDDR3GDDR5
Memory busDiffers64 bit256 bit
Memory clock speedDiffers1100 MHz4800 MHz
Ports & interfaces4 differ
Interface typeDiffersPCI Express 2.1PCI Express 3.0
DVI-D ports quantityDiffers10
DVI-I ports quantityKnown for one1
DisplayPorts quantityDiffers01
HDMI versionKnown for one1.4a
Mini DisplayPorts quantityKnown for one2
VGA (D-Sub) ports quantityDiffers10
Performance1 differ
Shader model versionKnown for one5.0
OpenGL versionDiffers4.14.2
HDCPKnown for oneYes
NVIDIA 3D VisionKnown for oneNo
Full HDKnown for oneNo
Design1 differ
Bracket heightKnown for oneFull-Height (FH)
Form factorDiffersHalf-Height/Half-Length (HH/HL)Full-Height/Full-Length (FH/FL)
Number of slotsKnown for one2
CertificationKnown for oneRoHS
Poweridentical
Supplementary power connectorsKnown for one2x 6-pin
Minimum system power supplyKnown for one400 W
System requirementsidentical
Windows operating systems supportedKnown for oneYes
Weight & dimensions2 differ
LengthKnown for one280 mm
DepthDiffers22 mm42.5 mm
HeightDiffers122 mm134 mm
Packaging contentidentical
Interface adapters includedKnown for oneDVI-I - VGA
User guideKnown for oneYes
Other featuresidentical
Mac compatibilityKnown for oneNo
Graphics card familyKnown for oneAMD, ATI

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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