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AMD Radeon HD 6770

Juniper
Graphics Processor
800
Cores
40
TMUs
16
ROPs
1024 MB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
AMD Radeon HD 6770 Image AMD Juniper Image
The Radeon HD 6770 was a mid-range graphics card by AMD, launched in January 2011. Built on the 40 nm process, and based on the Juniper graphics processor, in its Juniper XT variant, the card supports DirectX 11.0. The Juniper graphics processor is an average sized chip with a die area of 166 mm² and 1,040 million transistors. It features 800 shading units, 40 texture mapping units and 16 ROPs. AMD has placed 1,024 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 850 MHz, memory is running at 1200 MHz.
We recommend the AMD Radeon HD 6770 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a dual-slot card, the AMD Radeon HD 6770 draws power from 1x 6-pin power connectors, with power draw rated at 108 W maximum. Display outputs include: 2x DVI, 1x HDMI, 2x mini-DisplayPort. Radeon HD 6770 is connected to the rest of the system using a PCIe 2.0 x16 interface. The card measures 198 mm in length, and features a dual-slot cooling solution. Its price at launch was 129 US Dollars.

Graphics Processor

GPU Name: Juniper
GPU Variant: Juniper XT
Architecture: TeraScale 2
Process Size: 40 nm
Transistors: 1,040 million
Die Size: 166 mm²

Graphics Card

Released: Jan 21st, 2011
Production Status: End-of-life
Launch Price: 129 USD
Bus Interface: PCIe 2.0 x16

Relative Performance

9%
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27%
35%
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67%
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84%
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Radeon HD 6770
100%
104%
107%
107%
108%
110%
115%
117%
126%
128%
128%
134%
139%
148%
152%
153%
156%
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162%
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198%
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237%
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286%
286%
317%
354%
378%
380%
385%
390%
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401%
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408%
439%
444%
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460%
503%
525%
543%
595%
702%
821%
846%
Based on TPU review data: "Performance Summary" at 1920x1080
Radeon HD 6770 performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock: 850 MHz
Memory Clock: 1200 MHz
4800 MHz effective

Memory

Memory Size: 1024 MB
Memory Type: GDDR5
Memory Bus: 128 bit
Bandwidth: 76.8 GB/s

Render Config

Shading Units: 800
TMUs: 40
ROPs: 16
Compute Units: 10
Pixel Rate: 13.60 GPixel/s
Texture Rate: 34.0 GTexel/s
Floating-point performance: 1,360.0 GFLOPS

Board Design

Slot Width: Dual-slot
Length: 7.8 inches
198 mm
TDP: 108 W
Outputs: 2x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors: 1x 6-pin
Board Number: C010

Graphics Features

DirectX: 11.0
OpenGL: 4.2
OpenCL: 1.2
Shader Model: 5.0

Reviews

Our review database contains 35 reviews of the Radeon HD 6770.

Card Notes

HD 5770 rebrand

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ASUS HD 6770 DirectCU Silent 850 MHz 1000 MHz 11.42 inches/290 mm, 1x DVI 1x HDMI 1x VGA
HIS HD 6770 Fan 850 MHz 1200 MHz 7.755 inches/197 mm, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6770 Fan 850 MHz 1200 MHz 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6770 IceQ X 850 MHz 1200 MHz 9.055 inches/230 mm, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6770 IceQ X Turbo 880 MHz 1250 MHz 9.055 inches/230 mm, 2x DVI 1x HDMI 1x DisplayPort
MSI HD 6770 850 MHz 1200 MHz 8.19 inches/208 mm, 1x DVI 1x HDMI 1x DisplayPort
MSI HD 6770 Twin Frozr II OC 875 MHz 1200 MHz 8.189 inches/208 mm, 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 850 MHz 1200 MHz 512 MB, 7.32 inches/186 mm, 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 FleX 850 MHz 1200 MHz 7.32 inches/186 mm, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 Vapor-X 860 MHz 1200 MHz 7.9 inches/201 mm, 2x DVI 1x HDMI 1x DisplayPort
VTX3D HD 6770 V2 850 MHz 1200 MHz Single-slot, 1x DVI 1x HDMI 1x VGA