AMD Radeon E8870 vs AMD Radeon E9172 Full Specs
768 Shaders 1GHz | 512 Shaders 1.22GHz |
4GB GDDR596GB/s | 2GB GDDR548GB/s |
·· 1.54 TFLOPS | ·· 1.25 TFLOPS |
Form Factor MXM-B | Form Factor MXM-A |
TDP 75W | TDP 35W |
Clock Speed ·· | Clock Speed ··· |
Peak OPS 1.54 TFLOPSFP32 | Peak OPS 1.25 TFLOPSFP16 |
FP32 1.54 TFLOPS | FP32 1.25 TFLOPS |
FP64 96 GFLOPS | FP64 78.02 GFLOPS |
Pixel Rate 16 GPixel/s | Pixel Rate 19.5 GPixel/s |
Texture Rate 48 GTexel/s | Texture Rate 39 GTexel/s |
Shaders 768 Shaders | Shaders 512 Shaders |
TMUs 48 TMUs | TMUs 32 TMUs |
ROPs 16 ROPs | ROPs 16 ROPs |
CUs 12 CUs | CUs 8 CUs |
Base Clock - | Base Clock 1.12GHz |
Boost Clock 1GHz | Boost Clock 1.22GHz |
L2 Cache 256KB shared | L2 Cache 512KB shared |
4GB GDDR5 | 2GB GDDR5 |
Memory Bus 128-bit | Memory Bus 64-bit |
Memory Speed 6GT/s | Memory Speed 6GT/s |
Memory Bandwidth 96GB/s | Memory Bandwidth 48GB/s |
ECC No | ECC No |
TDP 75W | TDP 35W |
Multi-Monitor 3 | Multi-Monitor 3 |
HDCP HDCP 1.4 | HDCP HDCP 2.2 |
Encoder Model VCE 2.0 | Encoder Model VCE 3.4 |
Codec AVC (H.264) - | Codec AVC (H.264) HEVC (H.265) |
Decoder Model UVD 4.2 | Decoder Model UVD 6.3 |
Codec MPEG-1 MPEG-2 MPEG-4 - VC-1 AVC (H.264) - | Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 AVC (H.264) HEVC (H.265) |
Form Factor MXM-B | Form Factor MXM-A |
Cooling Passive | Cooling Passive |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Bonaire | Codename Lexa |
Chip Variant Bonaire XT | Chip Variant Polaris 12 XL |
Market Segment Server | Market Segment Server |
Release Date Sep 1, 2015 | Release Date Oct 1, 2017 |
Foundry TSMC | Foundry GlobalFoundries |
Fabrication Node 28nm | Fabrication Node 14LPP |
Die Size 160mm² | Die Size 103mm² |
Transistor Count 2.1 Billion | Transistor Count 2.2 Billion |
Transistor Density 13 MTr/mm² | Transistor Density 21.36 MTr/mm² |