AMD Radeon R9 M375X vs AMD Radeon R9 M390X Full Specs
640 Shaders 1.01GHz | 2,048 Shaders 723MHz |
4GB GDDR572GB/s | 4GB GDDR5160GB/s |
·· 1.3 TFLOPS | ·· 2.96 TFLOPS |
Form Factor Soldered | Form Factor Soldered |
TDP 35W | TDP 125W |
Radeon R9 M375X1.3 TFLOPSFP32Radeon R9 M390X2.96 TFLOPSFP32Clock Speed ·· | Clock Speed ·· |
Peak OPS 1.3 TFLOPSFP32 | Peak OPS 2.96 TFLOPSFP32 |
FP32 1.3 TFLOPS | FP32 2.96 TFLOPS |
FP64 81.2 GFLOPS | FP64 185.1 GFLOPS |
Pixel Rate 16.2 GPixel/s | Pixel Rate 23.1 GPixel/s |
Texture Rate 40.6 GTexel/s | Texture Rate 92.5 GTexel/s |
Shaders 640 Shaders | Shaders 2,048 Shaders |
TMUs 40 TMUs | TMUs 128 TMUs |
ROPs 16 ROPs | ROPs 32 ROPs |
CUs 10 CUs | CUs 32 CUs |
Boost Clock 1.01GHz | Boost Clock 723MHz |
L2 Cache 256KB shared | L2 Cache 768KB shared |
4GB GDDR5 | 4GB GDDR5 |
Memory Bus 128-bit | Memory Bus 256-bit |
Memory Speed 4.5GT/s | Memory Speed 5GT/s |
Memory Bandwidth 72GB/s | Memory Bandwidth 160GB/s |
TDP 35W | TDP 125W |
Multi-Monitor 3 | Multi-Monitor 3 |
HDCP - | HDCP HDCP 1.4 |
Encoder Model VCE 1.0 | Encoder Model VCE 3.0 |
Decoder Model UVD 4.0 | Decoder Model UVD 5.0 |
Form Factor Soldered | Form Factor Soldered |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Cape Verde | Codename Tonga |
Chip Variant Cape Verde LE | Chip Variant Tonga Pro |
Market Segment Laptop | Market Segment Laptop |
Release Date May 5, 2015 | Release Date May 5, 2015 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 123mm² | Die Size 359mm² |
Transistor Count 1.5 Billion | Transistor Count 5 Billion |
Transistor Density 12.2 MTr/mm² | Transistor Density 13.93 MTr/mm² |
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