AMD Radeon HD 7850 vs AMD Radeon HD 7950 Boost Full Specs

Summary

1,024 Shaders 860MHz	2,048 Shaders 925MHz
2GB GDDR5153.6GB/s	3GB GDDR5240GB/s
Peak·FP32·FP16 1.76 TFLOPS	Peak·FP32·FP16 3.79 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 130W	TDP 225W
Power Connectors 1x 6-Pin	Power Connectors 2x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

Radeon HD 78501.76 TFLOPSFP32

x1

Radeon HD 7950 Boost3.79 TFLOPSFP32

x2.15

Show Top Score

Theoretical Performance

Clock Speed860MHz UC·Boost·OC	Clock Speed925MHz UC·Base·Boost·OC
Peak OPS 1.76 TFLOPSFP32	Peak OPS 3.79 TFLOPSFP32
FP32 1.76 TFLOPS	FP32 3.79 TFLOPS
FP64 110.1 GFLOPS	FP64 947.2 GFLOPS
Pixel Rate 27.5 GPixel/s	Pixel Rate 29.6 GPixel/s
Texture Rate 55 GTexel/s	Texture Rate 103.6 GTexel/s

Core Config

Shaders 1,024 Shaders	Shaders 2,048 Shaders
TMUs 64 TMUs	TMUs 112 TMUs
ROPs 32 ROPs	ROPs 32 ROPs
CUs 16 CUs	CUs 32 CUs

Clocks

Base Clock -	Base Clock 850MHz
Boost Clock 860MHz	Boost Clock 925MHz

Cache

L2 Cache 512KB shared

L2 Cache 768KB shared

Memory

2GB GDDR5	3GB GDDR5
Memory Bus 256-bit	Memory Bus 384-bit
Memory Speed 4.8GT/s	Memory Speed 5GT/s
Memory Bandwidth 153.6GB/s	Memory Bandwidth 240GB/s

Power & Thermals

TDP 130W

TDP 225W

Video Output

Multi-Monitor 3

Multi-Monitor 3

Ports

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

Encoder

Encoder Model VCE 1.0

Encoder Model VCE 1.0

Decoder

Decoder Model UVD 4.0

Decoder Model UVD 3.2

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2-Slots	PCIe 2-Slots
Height 111 mm (4.37") Width 210 mm (8.27") Depth 37 mm (1.46")	Height 111 mm (4.37") Width 275 mm (10.83") Depth 38 mm (1.5")
Cooling Open-Air 1x Fan	Cooling Open-Air 1x Fan
Power Connectors 1x 6-Pin	Power Connectors 2x 6-Pin

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture GCN 1	Architecture GCN 1
Family Radeon HD 7000	Family Radeon HD 7000
Branding	Branding
Codename Pitcairn	Codename Tahiti
Chip Variant Pitcairn Pro	Chip Variant Tahiti LE
Market Segment Desktop	Market Segment Desktop
Release Date Mar 5, 2012	Release Date Jun 22, 2012

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 28nm	Fabrication Node 28nm
Die Size 212mm²	Die Size 352mm²
Transistor Count 2.8 Billion	Transistor Count 4.3 Billion
Transistor Density 13.21 MTr/mm²	Transistor Density 12.25 MTr/mm²

Images

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Competitors

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