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Radeon HD 4870

TeraScale Radeon HD 4000 Series Gaming Desktop GDDR5 2008

Key Metrics

Launch Date: 2008-06-25
Stream Processors: 800
Memory: 512 MB GDDR5
Memory Bandwidth: 115.2 GB/s
TDP/TBP: 150 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 4870
Architecture	TeraScale
Launch Date	2008-06-25
Core Specs
GPU Die	RV770
Chip Variant / Package	HFCBGA-1492
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	512 MB
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	150 W
Recommended PSU	450 W
Interface	PCIe 2.0 x16
Display Outputs	2x DVI, 1x S-Video
Slot Width	Dual-slot
Card Length	241 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 Palit graphics card with Radeon HD 4870 on the cooler and a PCIe edge — Front: Palit Radeon HD 4870 example board. Radeon HD 4870 marking visible; PCIe 2.0 and 512 MB GDDR5 are unverified.View original file page

Reviews2 reviews

ArticleAnandTech

ATI Radeon HD 4870 Review

Review of the Radeon HD 4870.

ArticleExact modelPC Perspective · 2008-06-25

AMD Radeon HD 4870 and HD 4850 Review – Mid-range GPU mix up

Sources

Independent reference sources

TechPowerUp GPU SpecsOpen source

Photo sources

Wikimedia Commons
Photo: Palit Radeon HD 4870 board (Front)Creator: Santeri ViinamäkiCredit: Santeri Viinamäki / Wikimedia CommonsTitle: Radeon HD 4870License: CC BY 3.0 UnportedSource claim: Commons file page states Santeri Viinamäki published this photograph under CC BY 3.0 Unported.Modified: Resized from 3992 x 2680 to 960 x 644 and JPEG recompressed at quality 78, with no crop. Changes are indicated under CC BY 3.0.Configuration: Example Palit board. The image and file page do not establish the Wiki reference PCIe 2.0 x16 or 512 MB GDDR5 configuration.License deed Original file page