GeForce GTX 980 SLI Mobile and GeForce GT 650M SLI - video card comparison

GeForce GTX 980 SLI Mobile

GeForce GT 650M SLI

Architecture

Maxwell (2014−2018)

Kepler (2012−2018)

GPU code name

N16E-GXX SLI

N13E-GE

Market segment

Laptop

Laptop

Release date

September 2015

March 2012

SLI options

+

-

Boost clock speed

1228 MHz

835 MHz

Core clock speed

1126 MHz

790 MHz

Manufacturing process technology

28 nm

28 nm

Number of transistors

10400 Million

-

Pipelines / CUDA cores

4096

768

Power consumption (TDP)

330 Watt

-

Memory type

GDDR5

GDDR5

Maximum RAM amount

2x 8 GB

2x2 GB

Memory bus width

256 Bit

2x 128 Bit

Memory clock speed

3500 MHz

4000 MHz

Shared memory

-

-

G-SYNC support

+

-

DirectX

12_1

11

CUDA

+

+

Optimus

-

+