ATI Mobility Radeon HD 3870 X2 vs AMD Radeon 860M 3000MHz Full Specs
640 Shaders 660MHz | 384 Shaders 3GHz |
1048MB GDDR3 placeholder | Shared Memory128GB/s · |
·· 844.8 GFLOPS | ·· 2.3 TFLOPS |
Form Factor MXM-II | Form Factor iGPU |
TDP 110W | TDP Shared |
Clock Speed ·· | Clock Speed ··· |
Peak OPS 844.8 GFLOPSFP32 | Peak OPS 4.61 TFLOPSFP16 |
- | BF16 4.61 TFLOPS |
FP32 844.8 GFLOPS | FP32 2.3 TFLOPS |
FP64 169 GFLOPS | FP64 144 GFLOPS |
Pixel Rate 10.6 GPixel/s | Pixel Rate 96 GPixel/s |
Texture Rate 10.6 GTexel/s | Texture Rate 72 GTexel/s |
Shaders 640 Shaders | Shaders 384 Shaders |
TMUs 32 TMUs | TMUs 24 TMUs |
ROPs 32 ROPs | ROPs 32 ROPs |
RT Cores - | RT Cores 6 RT-Cores |
Units - | CUs 6 CUs |
Base Clock - | Base Clock 1.5GHz |
Boost Clock 660MHz | Boost Clock 3GHz |
L2 Cache 256KB shared | L2 Cache - |
1048MB GDDR3 placeholder | Shared Memory · |
Memory Bus - | Memory Bus 128-bit |
Memory Speed 1.7GT/s | Memory Speed 8GT/s |
Memory Bandwidth - | Memory Bandwidth 128GB/s |
TDP 110W | TDP Shared |
Multi-Monitor 2 | Multi-Monitor 4 |
HDCP - | HDCP HDCP 2.3 |
- | Encoder Model VCN 4.0 |
Decoder Model UVD 1.0 | Decoder Model VCN 4.0 |
Form Factor MXM-II | Form Factor iGPU |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding ![]() | Branding ![]() |
Codename Boom | Codename Strix Point |
Chip Variant R680 XT | Chip Variant - |
Market Segment Laptop | Market Segment Laptop |
Release Date Sep 1, 2008 | Release Date Jan 6, 2025 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 55nm | Fabrication Node N4P |
Die Size 192mm² | Die Size 233mm² |
Transistor Count 666 Million | Transistor Count 28 Billion |
Transistor Density 3.47 MTr/mm² | Transistor Density 120 MTr/mm² |
No images available
No images available
CPUs - | CPUs |
Laptops - | Laptops |



