AMD Radeon R9 M290 vs NVIDIA GeForce GTX 660M Mac Full Specs
1,024 Shaders 975MHz | 384 Shaders 950MHz |
4GB GDDR5174.7GB/s | 512MB GDDR580GB/s |
·· 2 TFLOPS | ·· 729.6 GFLOPS |
Form Factor Soldered | Form Factor Soldered |
TDP 80W | TDP 50W |
Clock Speed ··· | Clock Speed ·· |
Peak OPS 2 TFLOPSFP32 | Peak OPS 729.6 GFLOPSFP32 |
FP32 2 TFLOPS | FP32 729.6 GFLOPS |
FP64 124.8 GFLOPS | FP64 30.4 GFLOPS |
Pixel Rate 31.2 GPixel/s | Pixel Rate 15.2 GPixel/s |
Texture Rate 62.4 GTexel/s | Texture Rate 30.4 GTexel/s |
Shaders 1,024 Shaders | Shaders 384 Shaders |
TMUs 64 TMUs | TMUs 32 TMUs |
ROPs 32 ROPs | ROPs 16 ROPs |
CUs 16 CUs | SMs 2 SMs |
Base Clock 850MHz | Base Clock - |
Boost Clock 975MHz | Boost Clock 950MHz |
L2 Cache 512KB shared | L2 Cache 256KB shared |
4GB GDDR5 | 512MB GDDR5 |
Memory Bus 256-bit | Memory Bus 128-bit |
Memory Speed 5.5GT/s | Memory Speed 5GT/s |
Memory Bandwidth 174.7GB/s | Memory Bandwidth 80GB/s |
ECC No | ECC No |
TDP 80W | TDP 50W |
Multi-Monitor 3 | Multi-Monitor 2 |
Encoder Model VCE 1.0 | Encoder Model NVENC 1 |
Codec AVC (H.264) | Codec AVC (H.264) |
Decoder Model UVD 4.0 | Decoder Model NVDEC 1 |
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 Soldered | Form Factor Soldered |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Pitcairn | Codename NVE7 |
Chip Variant Pitcairn Pro | Chip Variant - |
Market Segment Laptop | Market Segment Laptop |
Release Date May 31, 2014 | Release Date Mar 22, 2012 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 212mm² | Die Size 118mm² |
Transistor Count 2.8 Billion | Transistor Count 1.3 Billion |
Transistor Density 13.21 MTr/mm² | Transistor Density 10.76 MTr/mm² |