NVIDIA GeForce 820M vs NVIDIA GeForce 845M 4SM Full Specs
96 Shaders 719MHz | 512 Shaders 863MHz |
2GB DDR316GB/s | 2GB DDR316GB/s |
·· 366.3 GFLOPS | ·· 883.7 GFLOPS |
Form Factor Soldered | Form Factor Soldered |
TDP 15W | TDP 45W |
GeForce 820M366.3 GFLOPSFP32GeForce 845M 4SM883.7 GFLOPSFP32Clock Speed ··· | Clock Speed ·· |
Peak OPS 366.3 GFLOPSFP32 | Peak OPS 883.7 GFLOPSFP32 |
FP32 366.3 GFLOPS | FP32 883.7 GFLOPS |
FP64 30.53 GFLOPS | FP64 27.62 GFLOPS |
Pixel Rate 7.6 GPixel/s | Pixel Rate 13.8 GPixel/s |
Texture Rate 30.5 GTexel/s | Texture Rate 27.6 GTexel/s |
Shaders 96 Shaders | Shaders 512 Shaders |
TMUs 16 TMUs | TMUs 32 TMUs |
ROPs 4 ROPs | ROPs 16 ROPs |
SMs 2 SMs | SMs 4 SMs |
Base Clock 719MHz | Base Clock - |
Boost Clock 719MHz | Boost Clock 863MHz |
Shader Clock 1.91GHz | Shader Clock - |
L2 Cache 256KB shared | L2 Cache 2MB shared |
2GB DDR3 | 2GB DDR3 |
Memory Bus 64-bit | Memory Bus 64-bit |
Memory Speed 2GT/s | Memory Speed 2GT/s |
Memory Bandwidth 16GB/s | Memory Bandwidth 16GB/s |
TDP 15W | TDP 45W |
Multi-Monitor 2 | Multi-Monitor 2 |
- | Encoder Model NVENC 2 |
Decoder Model VP5 | Decoder Model NVDEC 1 |
Form Factor Soldered | Form Factor Soldered |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename NVD7 | Codename NV117 |
Chip Variant N13M-GS | Chip Variant GM107-220-A2 |
Market Segment Laptop | Market Segment Laptop |
Release Date Feb 1, 2014 | Release Date Aug 16, 2015 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 116mm² | Die Size 148mm² |
Transistor Count 585 Million | Transistor Count 1.9 Billion |
Transistor Density 5.04 MTr/mm² | Transistor Density 12.64 MTr/mm² |
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