AMD Radeon HD 7770M: GPU Specs & Benchmarks

The Radeon HD 7770M is a graphics card by AMD, built on the 28 nm process and based on the Chelsea graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Chelsea

Model number

Chelsea XT

Architecture

GCN 1.0

Foundry

TSMC

Process Size

28 nm

Transistors

1,500 million

Die Size

123 mm²

Graphics Card

Release Date

Apr 24th, 2012

Family

London
(HD 7700M)

Production

End-of-life

Predecessor

Vancouver

Bus Interface

PCIe 2.0 x16

Memory

Memory Size

1024 MB

Memory Type

GDDR5

Memory Bus

128 bit

Bandwidth

64.00 GB/s

Performance

Pixel fillrate

10.80 GPixel/s

Texture fillrate

21.60 GTexel/s

FP32 (float) performance

691.2 GFLOPS

FP64 (double) performance

43.20 GFLOPS (1:16)

Clock Speeds

Memory Clock

1000 MHz
4 Gbps effective

GPU Clock

675 MHz

Render Config

Shading Units

512

TMUs

32

ROPs

16

Compute Units

8

L1 Cache

16 KB (per CU)

L2 Cache

256 KB

Board Design

Thermal design power (TDP)

32 W

Display Connectors

No outputs

API support

DirectX

12 (11_1)

OpenGL

4.6

OpenCL

1.2

Vulkan

1.2

Shader Model

5.1