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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

9%
GeForce 210
11%
GeForce 9400 GT
14%
Radeon HD 4550
17%
Radeon HD 5450
20%
Radeon HD 6450
22%
GeForce GT 520
27%
GeForce GT 220
35%
GeForce GT 430
35%
Radeon HD 5570
38%
Radeon HD 4670
40%
GeForce GT 440
41%
GeForce GT 240
47%
GeForce 9600 GT
50%
Radeon HD 5670
54%
GeForce GT 640
56%
GeForce 9800 GT
58%
Radeon HD 6670
60%
Radeon HD 4830
64%
Radeon HD 4770
67%
Radeon HD 4850
69%
GeForce GTS 250
71%
GeForce GTS 450
73%
Radeon HD 5750
84%
Radeon HD 7750
84%
Radeon HD 5770
86%
GeForce GTX 260
87%
Radeon HD 4870
87%
Radeon Vega 8
88%
GeForce GTX 550 Ti
89%
GeForce GTX 650
94%
Radeon HD 5830
99%
Radeon HD 6790
100%
Radeon HD 6770
100%
Radeon HD 4890
104%
GeForce GTX 460
105%
Radeon RX Vega 11
106%
GeForce GT 1030
107%
GeForce GTX 275
107%
Radeon HD 7770 GHz Edition
108%
GeForce GTX 280
110%
GeForce GTX 465
115%
Radeon HD 6850
117%
GeForce GTX 285
126%
Radeon HD 5850
128%
GeForce GTX 650 Ti
128%
Radeon HD 7790
133%
Radeon RX 550
134%
GeForce GTX 470
138%
Radeon HD 6870
148%
Radeon HD 5870
152%
GeForce GTX 560 Ti
153%
Radeon HD 4870 X2
156%
GeForce GTX 750 Ti
157%
Radeon HD 6950
162%
GeForce GTX 295
164%
GeForce GTX 650 Ti Boost
165%
Radeon HD 7850
168%
GeForce GTX 480
176%
Radeon HD 6970
180%
Radeon R7 265
182%
Radeon RX 460
182%
Radeon R7 370
183%
GeForce GTX 660
184%
GeForce GTX 570
187%
Radeon RX 560
198%
GeForce GTX 950
200%
Radeon HD 7870 GHz Edition
205%
Radeon R9 270X
207%
GeForce GTX 660 Ti
208%
GeForce GTX 580
210%
GeForce GTX 1050
210%
Radeon HD 7950
215%
Radeon HD 5970
221%
GeForce GTX 760
237%
GeForce GTX 670
244%
GeForce GTX 960
250%
Radeon R9 380
251%
Radeon R9 285
254%
Radeon HD 7970
256%
GeForce GTX 680
262%
GeForce GTX 1050 Ti
269%
GeForce GTX 770
276%
Radeon HD 6990
282%
Radeon R9 280X
286%
GeForce GTX 590
286%
Radeon HD 7970 GHz Edition
317%
GeForce GTX 780
329%
GeForce GTX 1650
349%
Radeon RX 470
354%
Radeon R9 290
373%
Radeon RX 570
378%
Radeon R9 390
380%
Radeon R9 290X
385%
GeForce GTX 970
390%
GeForce GTX TITAN
395%
GeForce GTX 780 Ti
401%
Radeon R9 390X
402%
Radeon HD 7990
404%
Radeon RX 480
408%
GeForce GTX 690
430%
Radeon RX 580
439%
GeForce GTX 980
444%
Radeon R9 FURY
444%
GeForce GTX 1060 6 GB
464%
Radeon RX 590
489%
Radeon R9 295X2
491%
GeForce GTX 1660
497%
Radeon R9 FURY X
505%
GeForce GTX 980 Ti
519%
GeForce GTX TITAN X
564%
GeForce GTX 1660 Ti
564%
GeForce GTX 1070
600%
Radeon RX Vega 56
637%
GeForce GTX 1070 Ti
655%
Radeon RX Vega 64
664%
GeForce GTX 1080
664%
GeForce RTX 2060
691%
Radeon RX 5700
746%
GeForce RTX 2060 SUPER
773%
GeForce RTX 2070
791%
Radeon RX 5700 XT
801%
Radeon VII
821%
TITAN X Pascal
846%
GeForce GTX 1080 Ti
855%
GeForce RTX 2070 SUPER
910%
GeForce RTX 2080
964%
GeForce RTX 2080 SUPER
1064%
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
Suggested PSU
350 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