Radeon HD 6990 and T500 Max-Q - video card comparison

Radeon HD 6990

T500 Max-Q

Architecture

TeraScale 3 (2010−2013)

Turing (2018−2021)

GPU code name

Antilles

TU117

Market segment

Desktop

Laptop

Release date

March 2011

December 2020

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Supplementary power connectors

2x 8-pin

None

Boost clock speed

-

1425 MHz

Core clock speed

830 MHz

-

Floating-point performance

2x 2,549.8 gflops

-

Manufacturing process technology

40 nm

12 nm

Number of transistors

2,640 million

4,700 million

Pipelines / CUDA cores

1536

896

Power consumption (TDP)

375 Watt

18 Watt

Texture fill rate

79.68

79.80

Memory type

GDDR5

GDDR6

Maximum RAM amount

2 GB

4 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

5000 MHz

10 GB/s

Memory bandwidth

160.0 GB/s

80 GB/s

Display Connectors

1x DVI, 4x mini-DisplayPort

Portable Device Dependent

DirectX

11.2 (11_0)

12 (12_1)

CUDA

-

7.5

OpenCL

1.2

3.0

OpenGL

4.4

4.6

Shader Model

5.0

6.7 (6.4)

Vulkan

N/A

1.3