Product comparison · 2 gpus

GIGABYTE GV-N640D3-2GI graphics card NVIDIA GeForce GT 640 vs GIGABYTE GV-R775OC-2GI graphics card AMD Radeon HD7750

Key differences

Graphics processor family
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:NVIDIA
- GV-R775OC-2GI graphics card AMD Radeon HD7750:AMD
Graphics processor
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:GeForce GT 640
- GV-R775OC-2GI graphics card AMD Radeon HD7750:Radeon HD7750
Processor frequency
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:900 MHz
- GV-R775OC-2GI graphics card AMD Radeon HD7750:850 MHz
Maximum displays per videocard
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:4
- GV-R775OC-2GI graphics card AMD Radeon HD7750:2
Memory clock speed
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:1800 MHz
- GV-R775OC-2GI graphics card AMD Radeon HD7750:1600 MHz
PhysX
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:Yes
- GV-R775OC-2GI graphics card AMD Radeon HD7750:No
DirectX version
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:11
- GV-R775OC-2GI graphics card AMD Radeon HD7750:11.1
OpenGL version
- GV-N640D3-2GI graphics card NVIDIA GeForce GT 640:4.2
- GV-R775OC-2GI graphics card AMD Radeon HD7750:4.1

Differences highlightedShow differences only

Comparison of GV-N640D3-2GI, GV-R775OC-2GI
44 specifications	A GIGABYTE GV-N640D3-2GI graphics card NVIDIA GeForce GT 640 Model GV-N640D3-2GI View product	B GIGABYTE GV-R775OC-2GI graphics card AMD Radeon HD7750 Model GV-R775OC-2GI View product
Processor4 differ
Graphics processor familyDiffers	NVIDIA	AMD
Graphics processorDiffers	GeForce GT 640	Radeon HD7750
CUDAKnown for one	Yes	Unknown — not stated by the source
CUDA coresKnown for one	384	Unknown — not stated by the source
Processor frequencyDiffers	900 MHz	850 MHz
FireStreamKnown for one	No	Unknown — not stated by the source
Maximum displays per videocardDiffers	4	2
Parallel processing technology supportKnown for one	Not supported	Unknown — not stated by the source
Memory1 differ
Memory clock speedDiffers	1800 MHz	1600 MHz
Ports & interfacesidentical
DVI-I ports quantityKnown for one	0	Unknown — not stated by the source
Performance3 differ
PhysXDiffers	Yes	No
DirectX versionDiffers	11	11.1
OpenGL versionDiffers	4.2	4.1
NVIDIA 3D VisionKnown for one	Yes	Unknown — not stated by the source
Shader model versionKnown for one	Unknown — not stated by the source	5.0
Designidentical
Product colourKnown for one	Black, Blue	Unknown — not stated by the source
Power1 differ
Minimum system power supplyDiffers	350 W	400 W
Weight & dimensions3 differ
LengthDiffers	190 mm	195 mm
DepthDiffers	42 mm	40 mm
HeightDiffers	136.8 mm	136.5 mm
Technical detailsidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS

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.