NVIDIA GeForce GT 640M LE vs NVIDIA GeForce GTX 660M Mac Full Specs
96 Shaders 762MHz | 384 Shaders 950MHz |
1GB GDDR550.1GB/s | 524MB GDDR580GB/s |
·· 96 GFLOPS | ·· 729.6 GFLOPS |
Form Factor Soldered | Form Factor Soldered |
TDP 32W | TDP 50W |
GeForce GT 640M LE96 GFLOPSFP32GeForce GTX 660M Mac729.6 GFLOPSFP32Clock Speed ··· | Clock Speed ·· |
Peak OPS 96 GFLOPSFP32 | Peak OPS 729.6 GFLOPSFP32 |
FP32 96 GFLOPS | FP32 729.6 GFLOPS |
FP64 8 GFLOPS | FP64 30.4 GFLOPS |
Pixel Rate 2 GPixel/s | Pixel Rate 15.2 GPixel/s |
Texture Rate 8 GTexel/s | Texture Rate 30.4 GTexel/s |
Shaders 96 Shaders | Shaders 384 Shaders |
TMUs 16 TMUs | TMUs 32 TMUs |
ROPs 4 ROPs | ROPs 16 ROPs |
SMs 2 SMs | SMs 2 SMs |
Base Clock 762MHz | Base Clock - |
Boost Clock 762MHz | Boost Clock 950MHz |
Shader Clock 500MHz | Shader Clock - |
L2 Cache 256KB shared | L2 Cache 256KB shared |
1GB GDDR5 | 524MB GDDR5 |
Memory Bus 128-bit | Memory Bus 128-bit |
Memory Speed 3.1GT/s | Memory Speed 5GT/s |
Memory Bandwidth 50.1GB/s | Memory Bandwidth 80GB/s |
TDP 32W | TDP 50W |
Multi-Monitor 2 | Multi-Monitor 2 |
- | Encoder Model NVENC 1 |
Decoder Model VP4 | Decoder Model NVDEC 1 |
Form Factor Soldered | Form Factor Soldered |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename NVC1 | Codename NVE7 |
Market Segment Laptop | Market Segment Laptop |
Release Date Mar 22, 2012 | Release Date Mar 22, 2012 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 40nm | Fabrication Node 28nm |
Die Size 116mm² | Die Size 118mm² |
Transistor Count 585 Million | Transistor Count 1.3 Billion |
Transistor Density 5.04 MTr/mm² | Transistor Density 10.76 MTr/mm² |
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All-in-Ones - | All-in-Ones |