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AMD Radeon HD 6770

Graphics Processor
Juniper
Cores
800
TMUs
40
ROPs
16
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
128 bit
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 11.2. 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.
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 PCI-Express 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
(215-0754013)
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
1,040 million
Die Size
166 mm²

Graphics Card

Release Date
Jan 21st, 2011
Generation
Northern Islands
(HD 6700)
Production
End-of-life
Launch Price
129 USD
Bus Interface
PCIe 2.0 x16
Reviews
35 in our database

Relative Performance

10%
GeForce 210
13%
GeForce 9400 GT
16%
Radeon HD 4550
21%
Radeon HD 5450
24%
Radeon HD 6450
25%
GeForce GT 520
32%
GeForce GT 220
41%
GeForce GT 430
42%
Radeon HD 5570
45%
Radeon HD 4670
48%
GeForce GT 440
49%
GeForce GT 240
56%
GeForce 9600 GT
60%
Radeon HD 5670
64%
GeForce GT 640
66%
GeForce 9800 GT
69%
Radeon HD 6670
71%
Radeon HD 4830
76%
Radeon HD 4770
80%
Radeon HD 4850
82%
GeForce GTS 250
84%
GeForce GTS 450
87%
Radeon HD 5750
99%
Radeon HD 7750
100%
Radeon HD 5770
100%
Radeon HD 6770
102%
GeForce GTX 260
103%
Radeon HD 4870
103%
Radeon Vega 8
104%
GeForce GTX 550 Ti
105%
GeForce GTX 650
111%
Radeon HD 5830
117%
Radeon HD 6790
119%
Radeon HD 4890
123%
GeForce GTX 460
124%
Radeon RX Vega 11
126%
GeForce GT 1030
127%
GeForce GTX 275
127%
Radeon HD 7770 GHz Edition
127%
GeForce GTX 280
130%
GeForce GTX 465
136%
Radeon HD 6850
139%
GeForce GTX 285
149%
Radeon HD 5850
152%
GeForce GTX 650 Ti
152%
Radeon HD 7790
158%
Radeon RX 550
158%
GeForce GTX 470
164%
Radeon HD 6870
175%
Radeon HD 5870
181%
GeForce GTX 560 Ti
182%
Radeon HD 4870 X2
185%
GeForce GTX 750 Ti
186%
Radeon HD 6950
192%
GeForce GTX 295
195%
GeForce GTX 650 Ti Boost
196%
Radeon HD 7850
199%
GeForce GTX 480
209%
Radeon HD 6970
213%
Radeon R7 265
216%
Radeon R7 370
216%
Radeon RX 560
217%
GeForce GTX 660
218%
GeForce GTX 570
235%
GeForce GTX 950
237%
Radeon HD 7870 GHz Edition
243%
Radeon R9 270X
246%
GeForce GTX 660 Ti
247%
GeForce GTX 580
249%
GeForce GTX 1050
249%
Radeon HD 7950
254%
Radeon RX 460
254%
Radeon HD 5970
261%
GeForce GTX 760
281%
GeForce GTX 670
289%
GeForce GTX 960
296%
Radeon R9 380
298%
Radeon R9 285
301%
Radeon HD 7970
304%
GeForce GTX 680
311%
GeForce GTX 1050 Ti
319%
GeForce GTX 770
327%
Radeon HD 6990
334%
Radeon R9 280X
339%
GeForce GTX 590
339%
Radeon HD 7970 GHz Edition
376%
GeForce GTX 780
389%
GeForce GTX 1650
414%
Radeon RX 470
419%
Radeon R9 290
447%
Radeon R9 390
450%
Radeon R9 290X
456%
GeForce GTX 970
462%
GeForce GTX TITAN
466%
Radeon RX 570
468%
GeForce GTX 780 Ti
475%
Radeon R9 390X
477%
Radeon HD 7990
479%
Radeon RX 480
483%
GeForce GTX 690
509%
Radeon RX 580
520%
GeForce GTX 980
526%
GeForce GTX 1060 6 GB
526%
Radeon R9 FURY
529%
Radeon RX 590
579%
Radeon R9 295X2
589%
Radeon R9 FURY X
599%
GeForce GTX 980 Ti
644%
GeForce GTX TITAN X
675%
GeForce GTX 1660 Ti
679%
GeForce GTX 1070
709%
Radeon RX Vega 56
769%
GeForce GTX 1070 Ti
789%
Radeon RX Vega 64
789%
GeForce RTX 2060
809%
GeForce GTX 1080
928%
GeForce RTX 2070
928%
Radeon VII
973%
TITAN X Pascal
998%
GeForce GTX 1080 Ti
1078%
GeForce RTX 2080
1248%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
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
76.80 GB/s

Render Config

Shading Units
800
TMUs
40
ROPs
16
Compute Units
10
L1 Cache
8 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
13.60 GPixel/s
Texture Rate
34.00 GTexel/s
FP32 (float) performance
1,360 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
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Card Notes

HD 5770 rebrand

Juniper GPU Notes

Architecture Codename: Evergreen
Graphics/Compute: GFX4
Display Core Engine: 4.0
Unified Video Decoder: 2.3

Retail boards based on this design (13)

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 800 MHz 1100 MHz 7.87 inches/200 mm, 1x DVI 1x HDMI 1x VGA
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 775 MHz 1000 MHz 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