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AMD Radeon HD 6670

Graphics Processor
Turks
Cores
480
TMUs
24
ROPs
8
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
128 bit
The Radeon HD 6670 was a mid-range graphics card by AMD, launched in April 2011. Built on the 40 nm process, and based on the Turks graphics processor, in its Turks XT variant, the card supports DirectX 11.2. The Turks graphics processor is an average sized chip with a die area of 118 mm² and 716 million transistors. It features 480 shading units, 24 texture mapping units and 8 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 800 MHz, memory is running at 1000 MHz.
Being a single-slot card, the AMD Radeon HD 6670 does not require any additional power connector, its power draw is rated at 66 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x VGA. Radeon HD 6670 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 168 mm in length, and features a single-slot cooling solution. Its price at launch was 99 US Dollars.

Graphics Processor

GPU Name
Turks
GPU Variant
Turks XT
(215-0803000)
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
716 million
Die Size
118 mm²

Graphics Card

Release Date
Apr 19th, 2011
Generation
Northern Islands
(HD 6600)
Production
End-of-life
Launch Price
99 USD
Bus Interface
PCIe 2.0 x16
Reviews
35 in our database

Relative Performance

15%
GeForce 210
19%
GeForce 9400 GT
23%
Radeon HD 4550
30%
Radeon HD 5450
35%
Radeon HD 6450
37%
GeForce GT 520
46%
GeForce GT 220
60%
GeForce GT 430
61%
Radeon HD 5570
66%
Radeon HD 4670
70%
GeForce GT 440
71%
GeForce GT 240
82%
GeForce 9600 GT
87%
Radeon HD 5670
93%
GeForce GT 640
96%
GeForce 9800 GT
100%
Radeon HD 6670
103%
Radeon HD 4830
110%
Radeon HD 4770
116%
Radeon HD 4850
119%
GeForce GTS 250
122%
GeForce GTS 450
126%
Radeon HD 5750
144%
Radeon HD 7750
146%
Radeon HD 5770
148%
GeForce GTX 260
150%
Radeon HD 4870
150%
Radeon Vega 8
152%
GeForce GTX 550 Ti
153%
GeForce GTX 650
162%
Radeon HD 5830
171%
Radeon HD 6790
173%
Radeon HD 4890
180%
GeForce GTX 460
181%
Radeon RX Vega 11
183%
GeForce GT 1030
185%
GeForce GTX 275
185%
Radeon HD 7770 GHz Edition
186%
GeForce GTX 280
189%
GeForce GTX 465
198%
Radeon HD 6850
202%
GeForce GTX 285
217%
Radeon HD 5850
221%
GeForce GTX 650 Ti
221%
Radeon HD 7790
230%
Radeon RX 550
231%
GeForce GTX 470
239%
Radeon HD 6870
255%
Radeon HD 5870
263%
GeForce GTX 560 Ti
264%
Radeon HD 4870 X2
269%
GeForce GTX 750 Ti
271%
Radeon HD 6950
280%
GeForce GTX 295
283%
GeForce GTX 650 Ti Boost
285%
Radeon HD 7850
290%
GeForce GTX 480
304%
Radeon HD 6970
310%
Radeon R7 265
315%
Radeon RX 460
315%
Radeon R7 370
316%
GeForce GTX 660
317%
GeForce GTX 570
322%
Radeon RX 560
342%
GeForce GTX 950
345%
Radeon HD 7870 GHz Edition
353%
Radeon R9 270X
358%
GeForce GTX 660 Ti
359%
GeForce GTX 580
362%
GeForce GTX 1050
363%
Radeon HD 7950
370%
Radeon HD 5970
381%
GeForce GTX 760
410%
GeForce GTX 670
420%
GeForce GTX 960
431%
Radeon R9 380
434%
Radeon R9 285
438%
Radeon HD 7970
443%
GeForce GTX 680
453%
GeForce GTX 1050 Ti
465%
GeForce GTX 770
475%
Radeon HD 6990
487%
Radeon R9 280X
494%
GeForce GTX 590
494%
Radeon HD 7970 GHz Edition
547%
GeForce GTX 780
567%
GeForce GTX 1650
602%
Radeon RX 470
611%
Radeon R9 290
644%
Radeon RX 570
651%
Radeon R9 390
655%
Radeon R9 290X
664%
GeForce GTX 970
672%
GeForce GTX TITAN
681%
GeForce GTX 780 Ti
691%
Radeon R9 390X
694%
Radeon HD 7990
698%
Radeon RX 480
703%
GeForce GTX 690
741%
Radeon RX 580
757%
GeForce GTX 980
766%
Radeon R9 FURY
766%
GeForce GTX 1060 6 GB
801%
Radeon RX 590
843%
Radeon R9 295X2
848%
GeForce GTX 1660
857%
Radeon R9 FURY X
872%
GeForce GTX 980 Ti
895%
GeForce GTX TITAN X
973%
GeForce GTX 1660 Ti
973%
GeForce GTX 1070
1036%
Radeon RX Vega 56
1099%
GeForce GTX 1070 Ti
1130%
Radeon RX Vega 64
1146%
GeForce GTX 1080
1146%
GeForce RTX 2060
1193%
Radeon RX 5700
1287%
GeForce RTX 2060 SUPER
1334%
GeForce RTX 2070
1366%
Radeon RX 5700 XT
1381%
Radeon VII
1417%
TITAN X Pascal
1460%
GeForce GTX 1080 Ti
1475%
GeForce RTX 2070 SUPER
1570%
GeForce RTX 2080
1836%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
800 MHz
Memory Clock
1000 MHz
4000 MHz effective

Memory

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

Render Config

Shading Units
480
TMUs
24
ROPs
8
Compute Units
6
L1 Cache
8 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
6.400 GPixel/s
Texture Rate
19.20 GTexel/s
FP32 (float) performance
768.0 GFLOPS

Board Design

Slot Width
Single-slot
Length
6.6 inches
168 mm
TDP
66 W
Outputs
1x DVI
1x HDMI
1x VGA
Power Connectors
None
Board Number
C334

Graphics Features

DirectX
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Turks GPU Notes

Architecture Codename: Northern Islands
Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Retail boards based on this design (14)

Name GPU Clock Memory Clock Other Changes
ASUS HD 6670 2 GB 800 MHz 900 MHz 2 GB, GDDR3
ASUS HD 6670 DirectCU Silent 800 MHz 900 MHz GDDR3, Dual-slot
GIGABYTE HD 6670 2 GB 800 MHz 800 MHz 2 GB, GDDR3, 8.34 inches/212 mm
HIS HD 6670 Dual Fan 800 MHz 1000 MHz 7.64 inches/194 mm
HIS HD 6670 IceQ 2 GB 800 MHz 1000 MHz 2 GB, GDDR3
HIS HD 6670 iSilence 4 800 MHz 800 MHz GDDR3, 8.03 inches/204 mm
HIS HD 6670 iSilence 5 800 MHz 800 MHz GDDR3, 7.68 inches/195 mm
MSI HD 6670 Dual Fan V5 800 MHz 667 MHz GDDR3, 6.93 inches/176 mm, Dual-slot
MSI HD 6670 Single Fan V3 800 MHz 1000 MHz 6.93 inches/176 mm, Dual-slot
MSI HD 6670 Single Fan V5 2 GB 800 MHz 667 MHz 2 GB, GDDR3, 6.93 inches/176 mm, Dual-slot
Sapphire HD 6670 HyperMemory 800 MHz 1000 MHz 512 MB, 6.61 inches/168 mm, Dual-slot, 1x DVI 1x DisplayPort 1x VGA
Sapphire HD 6670 Ultimate 800 MHz 1000 MHz 7.086 inches/180 mm, Dual-slot, 1x DVI 1x HDMI 1x DisplayPort
XFX HD 6670 Core Edition 1 GB 800 MHz 800 MHz GDDR3, 5.9 inches/150 mm
XFX HD 6670 Core Edition 2 GB 800 MHz 650 MHz 2 GB, GDDR3, 5.9 inches/150 mm, 1x DVI 1x HDMI 1x DisplayPort