Product comparison · 2 gpus

Lenovo 45K1671 graphics card GDDR3 vs Lenovo 51J0509 graphics card GDDR3

Key differences

Memory bus
- 45K1671 graphics card GDDR3:128 bit
- 51J0509 graphics card GDDR3:64 bit
Memory bandwidth (max)
- 45K1671 graphics card GDDR3:25.6 GB/s
- 51J0509 graphics card GDDR3:15.2 GB/s
Interface type
- 45K1671 graphics card GDDR3:PCI Express 2.0
- 51J0509 graphics card GDDR3:PCI Express x16
DirectX version
- 45K1671 graphics card GDDR3:10
- 51J0509 graphics card GDDR3:10.1
Shader model version
- 45K1671 graphics card GDDR3:4.0
- 51J0509 graphics card GDDR3:4.1
OpenGL version
- 45K1671 graphics card GDDR3:3.0
- 51J0509 graphics card GDDR3:2.1

Differences highlightedShow differences only

Comparison of 45K1671, 51J0509
15 specifications	A Lenovo 45K1671 graphics card GDDR3 Model 45K1671 View product	B Lenovo 51J0509 graphics card GDDR3 Model 51J0509 View product
Processoridentical
CUDAKnown for one	Yes	Unknown — not stated by the source
Memory2 differ
Memory busDiffers	128 bit	64 bit
Memory bandwidth (max)Differs	25.6 GB/s	15.2 GB/s
Ports & interfaces1 differ
Interface typeDiffers	PCI Express 2.0	PCI Express x16
DVI-I ports quantityKnown for one	Unknown — not stated by the source	2
Performance3 differ
DirectX versionDiffers	10	10.1
Shader model versionDiffers	4.0	4.1
OpenGL versionDiffers	3.0	2.1
Dual Link DVIKnown for one	Yes	Unknown — not stated by the source
Designidentical
CertificationKnown for one	EnergyStar	Unknown — not stated by the source
Other featuresidentical
Compatible productsKnown for one	ThinkStation S20, D20	Unknown — not stated by the source

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.