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Mobility Radeon HD 4850 X2

TeraScale Radeon HD 4000 Series Mobile Laptop GDDR5 2009

Key Metrics

Launch Date: 2009-01-09
Stream Processors: 800
Memory: 1 GB GDDR5
Memory Bandwidth: 89.6 GB/s
Interface: PCIe 2.0 x16
Process Node: TSMC 55 nm

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GPU Specs

What do these fields mean?

Identity
Entry Type	Laptop GPU
Official Name	ATI Mobility Radeon HD 4850 X2
Architecture	TeraScale
Launch Date	2009-01-09
Core Specs
GPU Die	M98
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	500 MHz
Boost Clock	500 MHz
Pixel Fillrate	8 GP/s
Texture Fillrate	20 GT/s
FP32 Throughput	0.8 TFLOPS
FP64 Throughput	0.16 TFLOPS
Memory
Memory Size	1 GB
Memory Type	GDDR5
Memory Bus Width	256-bit
Memory Clock	700 MHz
Memory Bandwidth	89.6 GB/s
L2 Cache	0.25 MB
L1 Cache	16 KB
Board and Display
Interface	PCIe 2.0 x16
Slot Width	MXM Module
Software
Shader Model	4.1
DirectX Support	DirectX 10.1
OpenGL Support	OpenGL 3.3
OpenCL Support	OpenCL 1.1

Sources

Independent reference sources

TechPowerUp GPU SpecsOpen source