AMD Radeon HD 6770M Mac vs AMD Radeon HD 6970M X2 Full Specs
480 Shaders 675MHz | 1,920 Shaders 680MHz |
1GB GDDR550.8GB/s | 4GB GDDR5230.4GB/s |
·· 648 GFLOPS | ·· 2.61 TFLOPS |
Form Factor Soldered | Form Factor MXM-B |
TDP 35W | TDP 75W |
Radeon HD 6770M Mac648 GFLOPSFP32Radeon HD 6970M X22.61 TFLOPSFP32 (2x 1.31 TFLOPS)Clock Speed ·· | Clock Speed ·· |
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 |
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 |
Boost Clock 675MHz | Boost Clock 680MHz |
L2 Cache 256KB shared | L2 Cache 512KB shared |
1GB 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 |
TDP 35W | TDP 75W |
Multi-Monitor 2 | Multi-Monitor 2 |
Decoder Model UVD 3.0 | Decoder Model UVD 3.0 |
Form Factor Soldered | Form Factor MXM-B |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
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 |
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 |
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Laptops | Laptops - |