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AMD Radeon HD 7770M

AMD Radeon HD 7770M Image AMD Chelsea Image
The Radeon HD 7770M is a graphics card by AMD, launched in April 2012. Built on the 28 nm process, and based on the Chelsea graphics processor, in its Chelsea XT variant, the card supports DirectX 11.1. The Chelsea graphics processor is an average sized chip with a die area of 123 mm² and 1,500 million transistors. It features 512 shading units, 32 texture mapping units and 16 ROPs. AMD has placed 1,024 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 675 MHz, memory is running at 1000 MHz.
We recommend the AMD Radeon HD 7770M for gaming with highest details at resolutions up to, and including, 1280x720.
Its power draw is rated at 32 W maximum. Radeon HD 7770M is connected to the rest of the system using a PCIe 2.0 x16 interface.

Graphics Processor

GPU Name: Chelsea
GPU Variant: Chelsea XT
Process Size: 28 nm
Transistors: 1,500 million
Die Size: 123 mm²

Graphics Card

Released: Apr 24th, 2012
Production Status: Active
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 675 MHz
Memory Clock: 1000 MHz
4000 MHz effective

Memory

Memory Size: 1024 MB
Memory Type: GDDR5
Memory Bus: 128 bit
Bandwidth: 64.0 GB/s

Render Config

Shading Units: 512
TMUs: 32
ROPs: 16
Compute Units: 8
Pixel Rate: 10.8 GPixel/s
Texture Rate: 21.6 GTexel/s
Floating-point performance: 691.2 GFLOPS

Board Design

TDP: 32 W

Graphics Features

DirectX: 11.1
OpenGL: 4.3
OpenCL: 1.2
Shader Model: 5.0

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Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
AMD Radeon HD 7770M 2 GB 675 MHz 1000 MHz 2048 MB