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Apple HD 6770M

Graphics Processor
Whistler
Cores
480
TMUs
24
ROPs
8
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
128 bit
GPU Chip
GPU Chip
GPU

Graphics Processor

GPU Name
Whistler
GPU Variant
Whistler XT Mac
(216-0810084)
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
716 million
Density
6.1M / mm²
Die Size
118 mm²
Chip Package
FCBGA-962/1336

Mobile Graphics

Release Date
Jan 28th, 2011
Generation
Vancouver
(HD 6700M)
Predecessor
Manhattan
Successor
London
Production
End-of-life
Bus Interface
MXM-A (3.0)

Clock Speeds

GPU Clock
675 MHz
Memory Clock
794 MHz
3.2 Gbps effective

Memory

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

Render Config

Shading Units
480
TMUs
24
ROPs
8
Compute Units
6
L1 Cache
8 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
5.400 GPixel/s
Texture Rate
16.20 GTexel/s
FP32 (float)
648.0 GFLOPS

Board Design

Slot Width
MXM Module
TDP
35 W
Outputs
Portable Device Dependent

Graphics Features

DirectX
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Custom Board Notes

MacBook Pro late 2011

Whistler GPU Notes

Generation: Northern Islands
Desktop Variant: Turks
Mobile Variant: Thames
Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Other retail boards based on this design (2)

Name GPU Clock Memory Clock Other Changes
Apple HD 6770M
675 MHz 794 MHz
Apple HD 6770M 512 MB
725 MHz 900 MHz 512 MB
May 16th, 2024 13:21 EDT change timezone

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