AMD Radeon R5 M255 vs AMD Radeon R9 M270X Full Specs
320 Shaders 940MHz | 640 Shaders 775MHz |
2GB DDR316GB/s | 4GB GDDR572GB/s |
·· 601.6 GFLOPS | ·· 992 GFLOPS |
Form Factor Soldered | Form Factor Soldered |
TDP 15W | TDP 35W |
Radeon R5 M255601.6 GFLOPSFP32Radeon R9 M270X992 GFLOPSFP32Clock Speed ··· | Clock Speed ··· |
Peak OPS 601.6 GFLOPSFP32 | Peak OPS 992 GFLOPSFP32 |
FP32 601.6 GFLOPS | FP32 992 GFLOPS |
FP64 37.6 GFLOPS | FP64 62 GFLOPS |
Pixel Rate 7.5 GPixel/s | Pixel Rate 12.4 GPixel/s |
Texture Rate 18.8 GTexel/s | Texture Rate 31 GTexel/s |
Shaders 320 Shaders | Shaders 640 Shaders |
TMUs 20 TMUs | TMUs 40 TMUs |
ROPs 8 ROPs | ROPs 16 ROPs |
CUs 5 CUs | CUs 10 CUs |
Base Clock 925MHz | Base Clock 725MHz |
Boost Clock 940MHz | Boost Clock 775MHz |
L2 Cache 128KB shared | L2 Cache 256KB shared |
2GB DDR3 | 4GB GDDR5 |
Memory Bus 64-bit | Memory Bus 128-bit |
Memory Speed 2GT/s | Memory Speed 4.5GT/s |
Memory Bandwidth 16GB/s | Memory Bandwidth 72GB/s |
ECC No | ECC No |
TDP 15W | TDP 35W |
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 Cape Verde |
Chip Variant Banks Pro | Chip Variant Cape Verde LE |
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 123mm² |
Transistor Count 690 Million | Transistor Count 1.5 Billion |
Transistor Density 12.32 MTr/mm² | Transistor Density 12.2 MTr/mm² |
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