AMD Radeon HD 7420G vs AMD Radeon HD 7970M X2 Full Specs
128 Shaders 655MHz | 2,560 Shaders 850MHz |
Shared Memory25.6GB/sDDR3 | 4GB GDDR5307.2GB/s placeholder |
·· 167.7 GFLOPS | ·· 4.35 TFLOPS |
Form Factor iGPU | Form Factor MXM-B |
TDP Shared | TDP 75W |
Clock Speed ··· | Clock Speed ·· |
Peak OPS 167.7 GFLOPSFP32 | Peak OPS 4.35 TFLOPSFP32 |
FP32 167.7 GFLOPS | FP32 4.35 TFLOPS |
- | FP64 272 GFLOPS |
Pixel Rate 2.6 GPixel/s | Pixel Rate 27.2 GPixel/s |
Texture Rate 5.2 GTexel/s | Texture Rate 68 GTexel/s |
Shaders 128 Shaders | Shaders 2,560 Shaders |
TMUs 8 TMUs | TMUs 160 TMUs |
ROPs 4 ROPs | ROPs 64 ROPs |
CUs 2 CUs | CUs 40 CUs |
Base Clock 480MHz | Base Clock - |
Boost Clock 655MHz | Boost Clock 850MHz |
L2 Cache 256KB shared | L2 Cache 512KB shared |
Shared MemoryDDR3 | 4GB GDDR5 placeholder |
Memory Bus 128-bit | Memory Bus 256-bit |
Memory Speed 1.6GT/s | Memory Speed 4.8GT/s |
Memory Bandwidth 25.6GB/s | Memory Bandwidth 307.2GB/s |
ECC No | ECC No |
TDP Shared | TDP 75W |
Multi-Monitor 2 | Multi-Monitor 3 |
- | Encoder Model VCE 1.0 |
Codec - | Codec AVC (H.264) |
Decoder Model UVD 3.1 | Decoder Model UVD 4.0 |
Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264) | Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264) |
Form Factor iGPU | Form Factor MXM-B |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Scrapper | Codename Pitcairn |
Chip Variant - | Chip Variant Pitcairn Pro |
Market Segment Laptop | Market Segment Laptop |
Release Date Jun 1, 2012 | Release Date Apr 24, 2012 |
Foundry GlobalFoundries | Foundry TSMC |
Fabrication Node 32nm | Fabrication Node 28nm |
Die Size 246mm² | Die Size 212mm² |
Transistor Count 1.3 Billion | Transistor Count 2.8 Billion |
Transistor Density 5 MTr/mm² | Transistor Density 13.21 MTr/mm² |