ATI Mobility Radeon HD 4270 IGP vs ATI Radeon HD 3450 X2

Table of Contents

Graphics Processor

GPU model RS880 RV620
GPU variant RS880M RV620 LE
Architecture TeraScale TeraScale
Manufacturing process 55 nm 55 nm
Number of transistors 181 million 181 million
Die size 67 mm² 67 mm²
Foundry TSMC

Integrated Graphics

Release date May 1st, 2010
Generation Radeon IGP (Mobility HD 4000)
Production End-of-life
Interface PCIe 1.0 x16
Successor Palm

Clocks

GPU clock 590 MHz 600 MHz
Memory clock System Shared 500 MHz 1000 Mbps effective

Memory Configuration

Memory size System Shared 512 MB
Memory type System Shared DDR2
Memory bus width System Shared 64 bit
Bandwidth System Dependent 8.000 GB/s

Render Configuration

Shading units 40 40
TMUs 4 4
ROPs 4 4
Compute units 2 2
Cache L2 64 KB

Performance

Pixel rate 2.360 GPixel/s 2.400 GPixel/s
Texture rate 2.360 GTexel/s 2.400 GTexel/s
FP32 (float) performance 47.20 GFLOPS 48.00 GFLOPS

Dimensions & Outputs

Slot width IGP Single-slot
TDP unknown 50 W
Outputs No outputs 2x DMS-59
Power connectors None None
Length 168 mm 6.6 inches
Suggested PSU 250 W
Board number B629

API Support & Features

DirectX 10.1 (10_1) 10.1 (10_1)
OpenGL 3.3 3.3
OpenCL 1.0
Vulkan
Shader model 4.1 4.1

Other Features

Graphics Card

Release date Dec 10th, 2007
Generation Radeon R600
Production End-of-life
Interface PCIe 2.0 x16
Reviews 7 in our database
Predecessor Radeon R500 PCIe
Successor Radeon R700

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