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Product comparison · 2 gpus

CLUB3D CGNX-G648L graphics card NVIDIA GeForce GT 640 vs CLUB3D CGNX-XT666F graphics card NVIDIA GeForce GTX 660 Ti

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  • 40specifications compared
  • 17differ
  • 23identical
  • 19known for one product only

Key differences

  • Graphics processor
    • GeForce GT 640
    • GeForce GTX 660 Ti
  • CUDA cores
    • 384
    • 1344
  • Processor frequency
    • 900 MHz
    • 915 MHz
  • Parallel processing technology support
    • Not supported
    • 3-Way SLI
  • Discrete graphics card memory
    • 4 GB
    • 2 GB
  • Graphics card memory type
    • GDDR3
    • GDDR5
  • Memory bus
    • 128 bit
    • 192 bit
  • Memory clock speed
    • 1600 MHz
    • 6008 MHz

Side by side

Differences highlightedShow differences only
59 specifications
A

CLUB3D

CGNX-G648L graphics card NVIDIA GeForce GT 640

Model CGNX-G648L

View product
B

CLUB3D

CGNX-XT666F graphics card NVIDIA GeForce GTX 660 Ti

Model CGNX-XT666F

View product
Processor4 differ
Graphics processor familyNVIDIANVIDIA
Graphics processorDiffersGeForce GT 640GeForce GTX 660 Ti
Maximum resolution2560 x 1600 pixels2560 x 1600 pixels
CUDAYesYes
CUDA coresDiffers3841344
Processor frequencyDiffers900 MHz915 MHz
Shader clockKnown for one955 MHz
Graphics card RAMDAC400 MHz400 MHz
Maximum analog resolution2048 x 1536 pixels2048 x 1536 pixels
Maximum digital resolution2560 x 1600 pixels2560 x 1600 pixels
Parallel processing technology supportDiffersNot supported3-Way SLI
Processor boost clock speedKnown for one980 MHz
Maximum displays per videocardKnown for one2
Memory4 differ
Discrete graphics card memoryDiffers4 GB2 GB
Graphics card memory typeDiffersGDDR3GDDR5
Memory busDiffers128 bit192 bit
Memory clock speedDiffers1600 MHz6008 MHz
Ports & interfaces3 differ
Interface typePCI Express 3.0PCI Express 3.0
HDMI ports quantity11
DVI-D ports quantity11
DVI-I ports quantityDiffers01
DisplayPorts quantityDiffers01
HDMI version1.4a1.4a
VGA (D-Sub) ports quantityDiffers10
DVI ports quantityKnown for one2
DisplayPort versionKnown for one1.2
Dual VGAKnown for oneYes
Performance1 differ
PhysXYesYes
TV tuner integratedNoNo
DirectX version11.111.1
Shader model versionKnown for one5.0
OpenGL version4.24.2
HDCPYesYes
Dual Link DVIDiffersNoYes
NVIDIA 3D VisionYesYes
Full HDKnown for oneYes
Design1 differ
Cooling typeActiveActive
Form factorDiffersHalf-Height/Half-Length (HH/HL)Full-Height/Full-Length (FH/FL)
Number of slots22
CertificationKnown for oneCE, FCC, RoHS
Bracket heightKnown for oneFull-Height (FH)
Power2 differ
Minimum system power supplyDiffers350 W450 W
Power consumption (typical)Differs50 W150 W
System requirements1 differ
Windows operating systems supportedDiffersWindows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Pro, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic xWindows 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 8, Windows 8 Enterprise, Windows 8 Pro, Windows Vista Business, Windows Vista Business x64, Windows Vi
Minimum RAM2048 MB2048 MB
Minimum processorKnown for oneIntel Pentium 4, AMD Ahtlon XP class or higher
Minimum storage drive space300 MB300 MB
Weight & dimensionsidentical
WeightKnown for one207 g
LengthKnown for one146 mm
DepthKnown for one25 mm
HeightKnown for one63 mm
Packaging dataidentical
Package widthKnown for one225 mm
Package depthKnown for one139 mm
Package heightKnown for one75 mm
Packaging contentidentical
ManualYesYes
User guideYesYes
Other features1 differ
HDMIYesYes
ChipsetDiffersGK107GK104
Maximum operating temperatureKnown for one97 °C

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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