HomeGPU DirectoryRadeon HD 4870 X2
amddiscreteReleased 2008-08-12

Radeon HD 4870 X2

Architecture: TeraScale • Generation: Radeon R700(HD 4800)

VRAM Capacity
1 GB
GDDR5
FP32 Compute
1.2 TFLOPS
Single Precision
Thermal TDP
286 W
Max Sustained Power
Memory Bandwidth
115.2 GB/s
256-bit Bus

Silicon & Compute Pipeline

MicroarchitectureTeraScale
Generation SeriesRadeon R700(HD 4800)
Process Node55 nm
Die Size256 mm²
Transistor Count0.956 Billion
Shading Units / CUDA Cores800

Clock Speeds & Bus Interface

Base Clock Speed750 MHz
Boost Clock Speed750 MHz
Memory Clock900 MHz
Memory Bus Width256-bit
Bus InterfacePCIe 2.0 x16
Supported APIsDirectX 10.1
Data Source: open-gpu-db (upstream: dbgpu). Licensed under ODbL Open Data.
Verify Upstream Record