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AMD Radeon HD 6670

Turks
Graphics Processor
480
Cores
24
TMUs
8
ROPs
1024 MB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
AMD Radeon HD 6670 Photo AMD Turks Photo
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
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

Relative Performance

15%
19%
23%
30%
35%
37%
46%
60%
61%
66%
70%
71%
82%
87%
93%
96%
100%
Radeon HD 6670
103%
110%
116%
119%
122%
126%
144%
146%
148%
150%
150%
152%
153%
162%
170%
173%
180%
181%
183%
185%
185%
185%
189%
198%
202%
217%
221%
221%
230%
231%
239%
255%
263%
264%
269%
271%
280%
283%
285%
290%
304%
310%
315%
315%
316%
317%
342%
345%
353%
358%
359%
362%
363%
369%
370%
381%
410%
420%
431%
434%
438%
442%
453%
465%
475%
487%
494%
494%
547%
602%
610%
651%
655%
664%
672%
678%
681%
691%
694%
698%
703%
741%
757%
766%
766%
843%
857%
872%
937%
1029%
1066%
1148%
1148%
1211%
1417%
1453%
1584%
1802%
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

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

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 2048 MB, GDDR3
ASUS HD 6670 DirectCU Silent 800 MHz 900 MHz GDDR3, Dual-slot
GIGABYTE HD 6670 2 GB 800 MHz 800 MHz 2048 MB, 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 2048 MB, 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 2048 MB, 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 2048 MB, GDDR3, 5.9 inches/150 mm, 1x DVI 1x HDMI 1x DisplayPort