AMD Radeon HD 7420G vs AMD Radeon HD 7640G Full Specs
128 Shaders 655MHz | 256 Shaders 685MHz |
Shared Memory25.6GB/sDDR3 | Shared Memory25.6GB/s · |
·· 167.7 GFLOPS | ·· 350.7 GFLOPS |
Form Factor iGPU | Form Factor iGPU |
TDP Shared | TDP Shared |
Radeon HD 7420G167.7 GFLOPSFP32Radeon HD 7640G350.7 GFLOPSFP32Clock Speed ··· | Clock Speed ··· |
Peak OPS 167.7 GFLOPSFP32 | Peak OPS 350.7 GFLOPSFP32 |
FP32 167.7 GFLOPS | FP32 350.7 GFLOPS |
Pixel Rate 2.6 GPixel/s | Pixel Rate 5.5 GPixel/s |
Texture Rate 5.2 GTexel/s | Texture Rate 11 GTexel/s |
Shaders 128 Shaders | Shaders 256 Shaders |
TMUs 8 TMUs | TMUs 16 TMUs |
ROPs 4 ROPs | ROPs 8 ROPs |
CUs 2 CUs | CUs 4 CUs |
Base Clock 480MHz | Base Clock 496MHz |
Boost Clock 655MHz | Boost Clock 685MHz |
L2 Cache 256KB shared | L2 Cache 256KB shared |
Shared MemoryDDR3 | Shared Memory · |
Memory Bus 128-bit | Memory Bus 128-bit |
Memory Speed 1.6GT/s | Memory Speed 1.6GT/s |
Memory Bandwidth 25.6GB/s | Memory Bandwidth 25.6GB/s |
ECC No | ECC No |
Multi-Monitor 2 | Multi-Monitor 2 |
Decoder Model UVD 3.1 | Decoder Model UVD 3.1 |
Form Factor iGPU | Form Factor iGPU |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Scrapper | Codename Devastator |
Market Segment Laptop | Market Segment Laptop |
Release Date Jun 1, 2012 | Release Date May 1, 2012 |
Foundry GlobalFoundries | Foundry GlobalFoundries |
Fabrication Node 32nm | Fabrication Node 32nm |
Die Size 246mm² | Die Size 246mm² |
Transistor Count 1.3 Billion | Transistor Count 1.3 Billion |
Transistor Density 5 MTr/mm² | Transistor Density 5 MTr/mm² |
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