AMD Radeon HD 8670D vs AMD Radeon HD 8770M Full Specs
384 Shaders 844MHz | 384 Shaders 825MHz |
Shared Memory34.1GB/s · | 2GB GDDR572GB/s placeholder |
·· 648.2 GFLOPS | ·· 633.6 GFLOPS |
Form Factor iGPU | Form Factor Soldered |
TDP Shared | TDP 25W |
Radeon HD 8670D648.2 GFLOPSFP32Radeon HD 8770M633.6 GFLOPSFP32Clock Speed ·· | Clock Speed ··· |
Peak OPS 648.2 GFLOPSFP32 | Peak OPS 633.6 GFLOPSFP32 |
FP32 648.2 GFLOPS | FP32 633.6 GFLOPS |
- | FP64 39.6 GFLOPS |
Pixel Rate 6.8 GPixel/s | Pixel Rate 6.6 GPixel/s |
Texture Rate 20.3 GTexel/s | Texture Rate 19.8 GTexel/s |
Shaders 384 Shaders | Shaders 384 Shaders |
TMUs 24 TMUs | TMUs 24 TMUs |
ROPs 8 ROPs | ROPs 8 ROPs |
CUs 6 CUs | CUs 6 CUs |
Base Clock - | Base Clock 775MHz |
Boost Clock 844MHz | Boost Clock 825MHz |
L2 Cache 256KB shared | L2 Cache 256KB shared |
Shared Memory · | 2GB GDDR5 placeholder |
Memory Bus 128-bit | Memory Bus 128-bit |
Memory Speed 2.1GT/s | Memory Speed 4.5GT/s |
Memory Bandwidth 34.1GB/s | Memory Bandwidth 72GB/s |
ECC No | ECC No |
TDP Shared | TDP 25W |
Multi-Monitor 2 | Multi-Monitor 3 |
- | Encoder Model VCE 1.0 |
Decoder Model UVD 3.1 | Decoder Model UVD 4.0 |
Form Factor iGPU | Form Factor Soldered |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Devastator | Codename Oland |
Chip Variant - | Chip Variant Oland XT |
Market Segment Laptop | Market Segment Laptop |
Release Date May 23, 2013 | Release Date Jan 8, 2013 |
Foundry GlobalFoundries | Foundry TSMC |
Fabrication Node 32nm | Fabrication Node 28nm |
Die Size 246mm² | Die Size 77mm² |
Transistor Count 1.3 Billion | Transistor Count 950 Million |
Transistor Density 5 MTr/mm² | Transistor Density 12.34 MTr/mm² |
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