AMD Radeon HD 6850M+ vs AMD Radeon HD 6990M Full Specs
800 Shaders 675MHz | 1,120 Shaders 715MHz |
2GB DDR325.6GB/s | 2GB GDDR5115.2GB/s |
·· 1.08 TFLOPS | ·· 1.6 TFLOPS |
Form Factor Soldered | Form Factor MXM-B |
TDP 50W | TDP 75W |
Radeon HD 6850M+1.08 TFLOPSFP32
Radeon HD 6990M1.6 TFLOPSFP32Clock Speed ·· | Clock Speed ·· |
Peak OPS 1.08 TFLOPSFP32 | Peak OPS 1.6 TFLOPSFP32 |
FP32 1.08 TFLOPS | FP32 1.6 TFLOPS |
Pixel Rate 10.8 GPixel/s | Pixel Rate 22.9 GPixel/s |
Texture Rate 27 GTexel/s | Texture Rate 40 GTexel/s |
Shaders 800 Shaders | Shaders 1,120 Shaders |
TMUs 40 TMUs | TMUs 56 TMUs |
ROPs 16 ROPs | ROPs 32 ROPs |
CUs 10 CUs | CUs 14 CUs |
Boost Clock 675MHz | Boost Clock 715MHz |
L2 Cache 256KB shared | L2 Cache 512KB shared |
2GB DDR3 | 2GB GDDR5 |
Memory Bus 128-bit | Memory Bus 256-bit |
Memory Speed 1.6GT/s | Memory Speed 3.6GT/s |
Memory Bandwidth 25.6GB/s | Memory Bandwidth 115.2GB/s |
TDP 50W | TDP 75W |
Multi-Monitor 2 | Multi-Monitor 2 |
Decoder Model UVD 2.2 | 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 Juniper | Codename Barts |
Chip Variant Juniper Pro | Chip Variant Barts LE |
Market Segment Laptop | Market Segment Laptop |
Release Date Jan 4, 2011 | Release Date Jul 1, 2011 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 40nm | Fabrication Node 40nm |
Die Size 170mm² | Die Size 255mm² |
Transistor Count 1 Billion | Transistor Count 1.7 Billion |
Transistor Density 6.12 MTr/mm² | Transistor Density 6.67 MTr/mm² |
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