GeForce GT 640M and Radeon HD 8370D IGP - video card comparison

GeForce GT 640M

Radeon HD 8370D IGP

Architecture

Kepler (2012−2018)

TeraScale 3 (2010−2013)

GPU code name

N13P-GS

Scrapper Lite

Market segment

Laptop

Desktop

Release date

March 2012

July 2013

Bus support

PCI Express 2.0, PCI Express 3.0

-

Interface

PCIe 3.0 x16

IGP

Boost clock speed

645 MHz

-

Core clock speed

Up to 625 MHz

760 MHz

CUDA cores

384

-

Floating-point performance

480.0 gflops

-

Manufacturing process technology

28 nm

32 nm

Number of transistors

1,270 million

1,303 million

Pipelines / CUDA cores

384

128

Power consumption (TDP)

32 Watt

65 Watt

Texture fill rate

Up to 20.0 billion/sec

6.080

Memory type

DDR3\GDDR5

System Shared

Maximum RAM amount

2 GB

System Shared

Memory bus width

128bit

System Shared

Memory clock speed

1800 - 4000 MHz

System Shared

Memory bandwidth

Up to 64.0 GB/s

-

Shared memory

-

-

Display Connectors

No outputs

No outputs

HDMI

+

-

HDCP

+

-

Maximum VGA resolution

Up to 2048x1536

-

DirectX

12 API

11.2 (11_0)

CUDA

+

-

OpenCL

1.1

1.2

OpenGL

4.5

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

N/A

3D Blu-Ray

+

-

Optimus

+

-