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Dell HD 7470

  • 321-0123
  • R8TWN
Graphics Processor
Caicos
Cores
160
TMUs
8
ROPs
4
Memory Size
1024 MB
Memory Type
GDDR3
Bus Width
64 bit

Graphics Processor

GPU Name
Caicos
GPU Variant
Khalidster
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
370 million
Die Size
67 mm²

Graphics Card

Release Date
Jan 5th, 2012
Apr 8th, 2012
Generation
Southern Islands
(HD 7400)
Predecessor
Northern Islands
Successor
Sea Islands
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Clock Speeds

GPU Clock
750 MHz
775 MHz (+3%)
Memory Clock
900 MHz
3.6 Gbps effective
1800 Mbps effective

Memory

Memory Size
1024 MB
Memory Type
GDDR5
GDDR3
Memory Bus
64 bit
Bandwidth
28.80 GB/s
14.40 GB/s

Render Config

Shading Units
160
TMUs
8
ROPs
4
Compute Units
2
L1 Cache
8 KB (per CU)
L2 Cache
128 KB

Theoretical Performance

Pixel Rate
3.000 GPixel/s
3.100 GPixel/s
Texture Rate
6.000 GTexel/s
6.200 GTexel/s
FP32 (float) performance
240.0 GFLOPS
248.0 GFLOPS

Board Design

Slot Width
Single-slot
TDP
27 W
Suggested PSU
200 W
Outputs
1x DVI
1x DisplayPort
Power Connectors
None
Board Number
C264

Graphics Features

DirectX
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Card Notes

Rebranded HD 6450 GDDR5

Caicos GPU Notes

Architecture Codename: Northern Islands
Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Other retail boards based on this design (3)

Name GPU Clock Memory Clock Other Changes
Dell HD 7470 775 MHz 900 MHz GDDR3, 1x DVI 1x DisplayPort
Dell HD 7470 775 MHz 900 MHz GDDR3, 1x DVI 1x DisplayPort
Sapphire HD 7470 2 GB 775 MHz 800 MHz 2 GB, GDDR3