Mobility Radeon HD 5850 and GeForce GT 645M - video card comparison

Mobility Radeon HD 5850

GeForce GT 645M

Architecture

Terascale 2 (2009−2015)

Kepler (2012−2018)

GPU code name

Broadway-PRO

N13P-GS

Market segment

Laptop

Release date

January 2010

March 2012

Bus support

PCI Express 2.0, PCI Express 3.0

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Core clock speed

625 MHz

Up to 710 MHz

CUDA cores

384

Floating-point performance

800.0 gflops

544.5 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

1,040 million

1,270 million

Pipelines / CUDA cores

800

384

Power consumption (TDP)

39 Watt

32 Watt

Texture fill rate

20.00

22.7 billion/sec

Memory type

DDR3, GDDR3, GDDR5

DDR3\GDDR5

Maximum RAM amount

1 GB

2 GB

Memory bus width

128 Bit

128bit

Memory clock speed

2000 MHz

1800 MHz

Memory bandwidth

64 GB/s

Up to 64.0 GB/s

Shared memory

Display Connectors

No outputs

HDMI

HDCP

Maximum VGA resolution

Up to 2048x1536

DirectX

11.2 (11_0)

12 API

CUDA

OpenCL

1.2

1.1

OpenGL

4.4

4.5

Shader Model

5.0

5.1

Vulkan

N/A

1.1.126

3D Blu-Ray

Optimus