Hardware Wiki: GPU Wiki CPU Wiki

Radeon HD 4870 X2

TeraScale Radeon HD 4000 Series Gaming Desktop GDDR5 2008

Key Metrics

Launch Date: 2008-08-12
Stream Processors: 800
Memory: 1 GB GDDR5
Memory Bandwidth: 115.2 GB/s
TDP/TBP: 286 W
Interface: PCIe 2.0 x16

Add to comparison

Save this GPU, then open another GPU page to compare them side by side.

GPU Specs

What do these fields mean?

Identity
Entry Type	Reference GPU
Official Name	ATI Radeon HD 4870 X2
Architecture	TeraScale
Launch Date	2008-08-12
Core Specs
GPU Die	R700
Process Node	TSMC 55 nm
Transistor Count	0.96 billion
Die Size	256 mm²
Stream Processors	800
TMUs	40
ROPs	16
Base Clock	750 MHz
Boost Clock	750 MHz
Pixel Fillrate	12 GP/s
Texture Fillrate	30 GT/s
FP32 Throughput	1.2 TFLOPS
FP64 Throughput	0.24 TFLOPS
Memory
Memory Size	1 GB
Memory Type	GDDR5
Memory Bus Width	256-bit
Memory Clock	900 MHz
Memory Bandwidth	115.2 GB/s
L2 Cache	0.25 MB
L1 Cache	16 KB
Board and Display
TDP / TBP	286 W
Recommended PSU	600 W
Interface	PCIe 2.0 x16
Display Outputs	2x DVI, 1x S-Video
Slot Width	Dual-slot
Card Length	267 mm
Software
Shader Model	4.1
DirectX Support	DirectX 10.1
OpenGL Support	OpenGL 3.3
OpenCL Support	OpenCL 1.1

GPU Gallery

Front of a HIS Radeon HD 4870 X2 board — Front: HIS Radeon HD 4870 X2 PCIe board. The photographed HIS card is cataloged with 2 GB total GDDR5, while the Wiki entry lists 1 GB; its memory configuration is sample-specific. The exact photographed board or chip is identified on its source page.View original museum gallery

Sources

Independent reference sources

TechPowerUp GPU SpecsOpen source

Photo sources

Videocard Virtual Museum
Photo: HIS Radeon HD 4870 X2 PCIe board (Front)Credit: Videocard Virtual MuseumLicense: CC BY (version unspecified)Source claim: Archive page footer states Creative Commons Attribution for museum photos; version unspecified.Modified: Resized to 960 px maximum dimension and JPEG recompressed; no crop.Board identity: The exact photographed board or chip is identified on its source page.Configuration: The photographed HIS card is cataloged with 2 GB total GDDR5, while the Wiki entry lists 1 GB; its memory configuration is sample-specific.Original museum gallery