AMD Radeon HD 6770M Mac MXM vs AMD Radeon HD 6970M X2 Full Specs

Summary

480 Shaders 675MHz	1,920 Shaders 680MHz
524MB GDDR550.8GB/s	4GB GDDR5230.4GB/s
Peak·FP32·FP16 648 GFLOPS	Peak·FP32·FP16 2.61 TFLOPS
Form Factor MXM-A	Form Factor MXM-B
TDP 35W	TDP 75W

Highlights

Peak OPS

Peak OPS FP32 Memory Bandwidth TDP

Radeon HD 6770M Mac MXM648 GFLOPSFP32

x1

Radeon HD 6970M X22.61 TFLOPSFP32 (2x 1.31 TFLOPS)

x4.03

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Theoretical Performance

Clock Speed675MHz UC·Boost·OC	Clock Speed680MHz UC·Boost·OC
Peak OPS 648 GFLOPSFP32	Peak OPS 2.61 TFLOPSFP32
FP32 648 GFLOPS	FP32 2.61 TFLOPS
Pixel Rate 5.4 GPixel/s	Pixel Rate 21.8 GPixel/s
Texture Rate 16.2 GTexel/s	Texture Rate 32.6 GTexel/s

Core Config

Shaders 480 Shaders	Shaders 1,920 Shaders
TMUs 24 TMUs	TMUs 96 TMUs
ROPs 8 ROPs	ROPs 64 ROPs
CUs 6 CUs	CUs 24 CUs

Clocks

Boost Clock 675MHz

Boost Clock 680MHz

Cache

L2 Cache 256KB shared

L2 Cache 512KB shared

Memory

524MB GDDR5	4GB GDDR5
Memory Bus 128-bit	Memory Bus 256-bit
Memory Speed 3.2GT/s	Memory Speed 3.6GT/s
Memory Bandwidth 50.8GB/s	Memory Bandwidth 230.4GB/s
ECC No	ECC No

Power & Thermals

TDP 35W

TDP 75W

Video Output

Multi-Monitor 2

Multi-Monitor 2

Decoder

Decoder Model UVD 3.0

Decoder Model UVD 3.0

Card

Form Factor MXM-A

Form Factor MXM-B

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture TeraScale 2	Architecture TeraScale 2
Family Radeon HD 6000	Family Radeon HD 6000
Branding	Branding
Codename Turks	Codename Barts
Chip Variant Turks Pro	Chip Variant Barts LE
Market Segment Laptop	Market Segment Laptop
Release Date Jan 4, 2011	Release Date Jan 4, 2011

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 40nm	Fabrication Node 40nm
Die Size 118mm²	Die Size 255mm²
Transistor Count 716 Million	Transistor Count 1.7 Billion
Transistor Density 6.07 MTr/mm²	Transistor Density 6.67 MTr/mm²

Images

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Used In

All-in-Ones iMac 21.5(Mid 2011)iMac 27(Mid 2011)

All-in-Ones -

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