Product comparison · 2 gpus

Lenovo 45K1636 graphics card GDDR3 vs Lenovo 45K1671 graphics card GDDR3

Key differences

Memory bus
- 45K1636 graphics card GDDR3:64 bit
- 45K1671 graphics card GDDR3:128 bit
DirectX version
- 45K1636 graphics card GDDR3:10.1
- 45K1671 graphics card GDDR3:10
OpenGL version
- 45K1636 graphics card GDDR3:2.0
- 45K1671 graphics card GDDR3:3.0

Differences highlightedShow differences only

Comparison of 45K1636, 45K1671
22 specifications	A Lenovo 45K1636 graphics card GDDR3 Model 45K1636 View product	B Lenovo 45K1671 graphics card GDDR3 Model 45K1671 View product
Processoridentical
CUDAKnown for one	Unknown — not stated by the source	Yes
Memory1 differ
Memory busDiffers	64 bit	128 bit
Memory bandwidth (max)Known for one	Unknown — not stated by the source	25.6 GB/s
Ports & interfacesidentical
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
Performance2 differ
DirectX versionDiffers	10.1	10
OpenGL versionDiffers	2.0	3.0
HDCPKnown for one	Yes	Unknown — not stated by the source
Shader model versionKnown for one	Unknown — not stated by the source	4.0
Dual Link DVIKnown for one	Unknown — not stated by the source	Yes
Designidentical
CertificationKnown for one	Unknown — not stated by the source	EnergyStar
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	8 - 80%	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	430 g	Unknown — not stated by the source
LengthKnown for one	167 mm	Unknown — not stated by the source
DepthKnown for one	21 mm	Unknown — not stated by the source
HeightKnown for one	69 mm	Unknown — not stated by the source
Other featuresidentical
Compatible productsKnown for one	Unknown — not stated by the source	ThinkStation S20, D20

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.