AMD Radeon R5 M255 vs AMD Radeon R9 M290X Full Specs
320 Shaders 940MHz | 1,280 Shaders 900MHz |
2GB DDR316GB/s | 4GB GDDR5153.6GB/s |
·· 601.6 GFLOPS | ·· 2.3 TFLOPS |
Form Factor Soldered | Form Factor Soldered |
TDP 15W | TDP 100W |
Radeon R5 M255601.6 GFLOPSFP32Radeon R9 M290X2.3 TFLOPSFP32Clock Speed ··· | Clock Speed ··· |
Peak OPS 601.6 GFLOPSFP32 | Peak OPS 2.3 TFLOPSFP32 |
FP32 601.6 GFLOPS | FP32 2.3 TFLOPS |
FP64 37.6 GFLOPS | FP64 144 GFLOPS |
Pixel Rate 7.5 GPixel/s | Pixel Rate 28.8 GPixel/s |
Texture Rate 18.8 GTexel/s | Texture Rate 72 GTexel/s |
Shaders 320 Shaders | Shaders 1,280 Shaders |
TMUs 20 TMUs | TMUs 80 TMUs |
ROPs 8 ROPs | ROPs 32 ROPs |
CUs 5 CUs | CUs 20 CUs |
Base Clock 925MHz | Base Clock 850MHz |
Boost Clock 940MHz | Boost Clock 900MHz |
L2 Cache 128KB shared | L2 Cache 512KB shared |
2GB DDR3 | 4GB GDDR5 |
Memory Bus 64-bit | Memory Bus 256-bit |
Memory Speed 2GT/s | Memory Speed 4.8GT/s |
Memory Bandwidth 16GB/s | Memory Bandwidth 153.6GB/s |
TDP 15W | TDP 100W |
Multi-Monitor 3 | Multi-Monitor 3 |
HDCP HDCP 1.4 | HDCP - |
- | Encoder Model VCE 1.0 |
- | Decoder Model UVD 4.0 |
Form Factor Soldered | Form Factor Soldered |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Hainan | Codename Pitcairn |
Chip Variant Banks Pro | Chip Variant Pitcairn Pro |
Market Segment Laptop | Market Segment Laptop |
Release Date Jun 11, 2014 | Release Date May 31, 2014 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 56mm² | Die Size 212mm² |
Transistor Count 690 Million | Transistor Count 2.8 Billion |
Transistor Density 12.32 MTr/mm² | Transistor Density 13.21 MTr/mm² |
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All-in-Ones - | All-in-Ones |