AMD Radeon HD 7670 vs AMD Radeon HD 7870 GHz Full Specs

Summary

480 Shaders 800MHz	1,280 Shaders 1GHz
1GB GDDR564GB/s	2GB GDDR5153.6GB/s
Peak·FP32·FP16 768 GFLOPS	Peak·FP32·FP16 2.56 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 66W	TDP 175W
Power Connectors -	Power Connectors 2x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

Radeon HD 7670768 GFLOPSFP32

x1

Radeon HD 7870 GHz2.56 TFLOPSFP32

x3.33

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Theoretical Performance

Clock Speed800MHz UC·Boost·OC	Clock Speed1000MHz UC·Boost·OC
Peak OPS 768 GFLOPSFP32	Peak OPS 2.56 TFLOPSFP32
FP32 768 GFLOPS	FP32 2.56 TFLOPS
-	FP64 160 GFLOPS
Pixel Rate 6.4 GPixel/s	Pixel Rate 32 GPixel/s
Texture Rate 19.2 GTexel/s	Texture Rate 80 GTexel/s

Core Config

Shaders 480 Shaders	Shaders 1,280 Shaders
TMUs 24 TMUs	TMUs 80 TMUs
ROPs 8 ROPs	ROPs 32 ROPs
CUs 6 CUs	CUs 20 CUs

Clocks

Boost Clock 800MHz

Boost Clock 1GHz

Cache

L2 Cache 256KB shared

L2 Cache 512KB shared

Memory

1GB GDDR5	2GB GDDR5
Memory Bus 128-bit	Memory Bus 256-bit
Memory Speed 4GT/s	Memory Speed 4.8GT/s
Memory Bandwidth 64GB/s	Memory Bandwidth 153.6GB/s

Power & Thermals

TDP 66W

TDP 175W

Video Output

Multi-Monitor 2

Multi-Monitor 3

Ports

-	2x Mini DisplayPort 1.2
-	1x HDMI 1.4
-	1x DVI-I Dual-Link

Encoder

-	Encoder Model VCE 1.0

Decoder

Decoder Model UVD 3.0

Decoder Model UVD 4.0

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1-Slots	PCIe 2-Slots
-	Height 111 mm (4.37") Width 241 mm (9.49") Depth 37 mm (1.46")
Cooling Open-Air 1x Fan	Cooling Blower 1x Fan
Power Connectors -	Power Connectors 2x 6-Pin

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture TeraScale 2	Architecture GCN 1
Family Radeon HD 7000	Family Radeon HD 7000
Branding	Branding
Codename Turks	Codename Pitcairn
Chip Variant Turks Pro	Chip Variant Pitcairn Pro
Market Segment Desktop	Market Segment Desktop
Release Date Jan 5, 2012	Release Date Mar 5, 2012

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 40nm	Fabrication Node 28nm
Die Size 118mm²	Die Size 212mm²
Transistor Count 716 Million	Transistor Count 2.8 Billion
Transistor Density 6.07 MTr/mm²	Transistor Density 13.21 MTr/mm²

Images

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