Radeon HD 3850 and GeForce GTX 860M OEM - video card comparison

Radeon HD 3850

GeForce GTX 860M OEM

Architecture

TeraScale (2005−2013)

Maxwell (2014−2018)

GPU code name

RV670

GM107

Market segment

Desktop

Release date

November 2007

February 2015

Interface

PCIe 2.0 x16

MXM-B (3.0)

Supplementary power connectors

1x 6-pin

None

Boost clock speed

1085 MHz

Core clock speed

668 MHz

1020 MHz

Floating-point performance

427.5 gflops

1,389 gflops

Manufacturing process technology

55 nm

28 nm

Number of transistors

666 million

1,870 million

Pipelines / CUDA cores

320

640

Power consumption (TDP)

75 Watt

Texture fill rate

10.69

43.40

Memory type

GDDR3

GDDR5

Maximum RAM amount

1 GB

2 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

1660 MHz

5012 MHz

Memory bandwidth

53.12 GB/s

80.19 GB/s

Display Connectors

2x DVI, 1x S-Video

No outputs

DirectX

10.1 (10_1)

12 (11_0)

CUDA

5.0

OpenCL

N/A

1.2

OpenGL

3.3

4.6

Shader Model

4.1

5.1

Vulkan

N/A

1.1.126