Radeon HD 3870 Mac Edition

TeraScale Radeon HD 3000 / 2000 Series Gaming Desktop GDDR4 2008

Key Metrics

Architecture: TeraScale
Launch Date: 2008-06-12
Stream Processors: 320
Memory: 512 MB GDDR4
Memory Bandwidth: 72.06 GB/s
TDP/TBP: 106 W
Interface: PCIe 2.0 x16

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GPU Specs

What do these fields mean?

Identity
Entry Type	Reference GPU
Official Name	ATI Radeon HD 3870 Mac Edition
Architecture	TeraScale
Launch Date	2008-06-12
Core Specs
GPU Die	RV670
Chip Variant / Package	FCBGA-1281
Process Node	TSMC 55 nm
Transistor Count	0.67 billion
Die Size	192 mm²
Stream Processors	320
TMUs	16
ROPs	16
Base Clock	777 MHz
Boost Clock	777 MHz
Pixel Fillrate	12.43 GP/s
Texture Fillrate	12.43 GT/s
FP32 Throughput	0.5 TFLOPS
FP64 Throughput	0.1 TFLOPS
Memory
Memory Size	512 MB
Memory Type	GDDR4
Memory Bus Width	256-bit
Memory Clock	1,126 MHz
Memory Bandwidth	72.06 GB/s
L2 Cache	0.25 MB
Board and Display
TDP / TBP	106 W
Recommended PSU	300 W
Interface	PCIe 2.0 x16
Display Outputs	2x DVI, 1x S-Video
Slot Width	Single-slot
Card Length	241 mm
Software
Shader Model	4.1
DirectX Support	DirectX 10.1
OpenGL Support	OpenGL 3.3

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Sources

Sources reviewed: 2026-06-23

This entry is still being source-checked.

Data confidence and source status

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Verified: core specifications and historical notes have been reviewed against listed sources.
Partial: core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
Imported: spec-only imported entry pending editorial source review.
Needs source review: narrative notes are incomplete until reviewed.

Independent reference sources

TechPowerUp GPU SpecsOpen source

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