GeForce 845M and Mobility Radeon HD 4830 - video card comparison

GeForce 845M

Mobility Radeon HD 4830

Architecture

Maxwell (2014−2018)

Terascale 1 (2008−2010)

GPU code name

GM108

M97

Market segment

Laptop

Release date

March 2014

March 2009

Interface

PCIe 3.0 x8

PCIe 2.0 x16

Boost clock speed

1150 MHz

Core clock speed

1071 MHz

550 MHz

Floating-point performance

883.7 gflops

704.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,870 million

826 million

Pipelines / CUDA cores

384

640

Power consumption (TDP)

45 Watt

Texture fill rate

37.63

17.60

Memory type

DDR3, GDDR5

GDDR3, DDR3

Maximum RAM amount

2 GB

1 GB

Memory bus width

64/128 Bit

128 Bit

Memory clock speed

2000 - 5000 MHz

700 MHz

Memory bandwidth

40.1 GB/s

44.8 GB/s

Shared memory

Display Connectors

No outputs

DirectX

12 (11_0)

10.1 (10_1)

CUDA

OpenCL

1.2

1.1

OpenGL

4.6

3.3

Shader Model

5.1

4.1

Vulkan

1.1.126

N/A

Optimus