512 MB
GDDR3550 MHz
Boost Clock55 nm
ProcessShare on Social Media
Share Mobility Radeon HD 4870 specifications with othersTechnical Specifications
Core Specifications
Architecture:
TeraScale
Process Size:
55 nm
Base Clock:
550 MHz
Boost Clock:
550 MHz
Shader Units:
800
TMUs:
40
ROPs:
16
Memory & Performance
Memory Size:
512 MB
Memory Type:
GDDR3
Memory Bandwidth:
56.8 GB/s
Bus Interface:
PCIe 2.0 x16
Cache & Die Information
L1 Cache:
16 KB
L2 Cache:
0.2 MB
Die Size:
256 mm²
Transistors:
1.0 billion
Transistor Density:
3.7 million/mm²
Physical Specifications
Power Connectors:
None
Quick Facts
Performance
Pixel Fill Rate
8.8 GPixel/s
Texture Fill Rate
22.0 GTexel/s
FP32 Performance
0.9 TFLOPS