GeForce GT 650M SLI and Radeon HD 7770M - video card comparison

GeForce GT 650M SLI

Radeon HD 7770M

Architecture

Kepler (2012−2018)

GCN (2011−2017)

GPU code name

N13E-GE

Chelsea XT

Market segment

Laptop

Laptop

Release date

March 2012

April 2012

Interface

-

PCIe 2.0 x16

Boost clock speed

835 MHz

-

Core clock speed

790 MHz

675 MHz

Floating-point performance

-

691.2 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

-

1,500 million

Pipelines / CUDA cores

768

512

Power consumption (TDP)

-

32 Watt

Texture fill rate

-

21.60

Memory type

GDDR5

GDDR5

Maximum RAM amount

2x2 GB

1 GB

Memory bus width

2x 128 Bit

128 Bit

Memory clock speed

4000 MHz

4000 MHz

Memory bandwidth

-

64 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

DirectX

11

12 (11_1)

CUDA

+

-

OpenCL

-

1.2

OpenGL

-

4.6

Shader Model

-

5.1

Vulkan

-

1.2.131

Optimus

+

-