Mobility Radeon HD 4860 and Knights Ferry - video card comparison

Mobility Radeon HD 4860

Knights Ferry

Architecture

Terascale 1 (2008−2010)

Knights (2010)

GPU code name

M97-XT

Knights Ferry

Market segment

Laptop

Desktop

Release date

March 2009

Interface

PCIe 2.0 x16

Core clock speed

650 MHz

Floating-point performance

832.0 gflops

Manufacturing process technology

40 nm

45 nm

Number of transistors

826 million

2,300 million

Pipelines / CUDA cores

640

512

Texture fill rate

20.80

Memory type

GDDR5

Maximum RAM amount

1 GB

Memory bus width

128 Bit

Memory clock speed

1000 MHz

Memory bandwidth

64 GB/s

Shared memory

Display Connectors

No outputs

DirectX

10.1 (10_1)

N/A

OpenCL

1.1

1.2

OpenGL

3.3

N/A

Shader Model

4.1

5.0

Vulkan

N/A