Xbox 360 GPU and Heathrow - video card comparison

Xbox 360 GPU

Heathrow

Architecture

TeraScale (2005−2013)

GCN 1.0 (2012−2020)

GPU code name

Xenos

Heathrow

Market segment

Desktop

Desktop

Release date

November 2005

-

Interface

IGP

-

Core clock speed

500 MHz

-

Floating-point performance

240 gflops

-

Manufacturing process technology

90 nm

28 nm

Number of transistors

232 million

1,500 million

Pipelines / CUDA cores

240

640

Texture fill rate

8.000

-

Memory type

GDDR3

-

Maximum RAM amount

512 MB

-

Memory bus width

128 Bit

-

Memory clock speed

1400 MHz

-

Memory bandwidth

22.4 GB/s

-

Display Connectors

No outputs

-

DirectX

9.0c (9_3)

12 (11_1)

OpenCL

-

2.1 (1.2)

OpenGL

N/A

4.6

Shader Model

-

6.5 (5.1)

Vulkan

-

1.2.170