Radeon HD 3870 X2 and T550 Mobile - video card comparison

Radeon HD 3870 X2

T550 Mobile

Architecture

TeraScale (2005−2013)

Turing (2018−2021)

GPU code name

R680

TU117

Market segment

Desktop

Laptop

Release date

January 2008

May 2022

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

-

Boost clock speed

-

1665 MHz

Core clock speed

825 MHz

1065 MHz

Floating-point performance

2x 528.0 gflops

-

Manufacturing process technology

55 nm

12 nm

Number of transistors

666 million

4,700 million

Pipelines / CUDA cores

320

1024

Power consumption (TDP)

165 Watt

25 Watt (20 - 60 Watt TGP)

Texture fill rate

13.20

106.6

Memory type

GDDR3

GDDR5, GDDR6

Maximum RAM amount

512 MB

4 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

1802 MHz

12000 MHz

Memory bandwidth

57.66 GB/s

96 GB/s

Shared memory

-

-

Display Connectors

2x DVI, 1x S-Video

No outputs

DirectX

10.1 (10_1)

12 (12_1)

CUDA

-

7.5

OpenCL

N/A

3.0

OpenGL

3.3

4.6

Shader Model

4.1

6.6

Vulkan

N/A

1.3