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AMD Radeon HD 7970

Graphics Processor
Tahiti
Cores
2048
TMUs
128
ROPs
32
Memory Size
3 GB
Memory Type
GDDR5
Bus Width
384 bit
GPU Chip
GPU
I/O
I/O
Top
Top
PCB Front
PCB Front
PCB Back
PCB Back
The Radeon HD 7970 was a high-end graphics card by AMD, launched in December 2011. Built on the 28 nm process, and based on the Tahiti graphics processor, in its Tahiti XT variant, the card supports DirectX 12.0. The Tahiti graphics processor is a large chip with a die area of 352 mm² and 4,313 million transistors. It features 2048 shading units, 128 texture mapping units and 32 ROPs. AMD has placed 3,072 MB GDDR5 memory on the card, which are connected using a 384-bit memory interface. The GPU is operating at a frequency of 925 MHz, memory is running at 1375 MHz.
Being a dual-slot card, the AMD Radeon HD 7970 draws power from 1x 6-pin + 1x 8-pin power connectors, with power draw rated at 250 W maximum. Display outputs include: 1x DVI, 1x HDMI, 2x mini-DisplayPort. Radeon HD 7970 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 274 mm in length, and features a dual-slot cooling solution. Its price at launch was 549 US Dollars.

Graphics Processor

GPU Name
Tahiti
GPU Variant
Tahiti XT
(215-0821060)
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
4,313 million
Die Size
352 mm²

Graphics Card

Release Date
Dec 22nd, 2011
Generation
Southern Islands
(HD 7900)
Production
End-of-life
Launch Price
549 USD
Bus Interface
PCIe 3.0 x16

Relative Performance

3%
GeForce 210
4%
GeForce 9400 GT
5%
Radeon HD 4550
7%
Radeon HD 5450
8%
Radeon HD 6450
8%
GeForce GT 520
10%
GeForce GT 220
14%
GeForce GT 430
14%
Radeon HD 5570
15%
Radeon HD 4670
16%
GeForce GT 440
16%
GeForce GT 240
19%
GeForce 9600 GT
20%
Radeon HD 5670
21%
GeForce GT 640
22%
GeForce 9800 GT
23%
Radeon HD 6670
24%
Radeon HD 4830
25%
Radeon HD 4770
27%
Radeon HD 4850
27%
GeForce GTS 250
28%
GeForce GTS 450
29%
Radeon HD 5750
33%
Radeon HD 7750
33%
Radeon HD 5770
34%
GeForce GTX 260
34%
Radeon HD 4870
34%
Radeon Vega 8
35%
GeForce GTX 550 Ti
35%
GeForce GTX 650
37%
Radeon HD 5830
39%
Radeon HD 6790
40%
Radeon HD 4890
41%
GeForce GTX 460
41%
Radeon RX Vega 11
42%
GeForce GT 1030
42%
GeForce GTX 275
42%
Radeon HD 7770 GHz Edition
42%
GeForce GTX 280
43%
GeForce GTX 465
45%
Radeon HD 6850
46%
GeForce GTX 285
50%
Radeon HD 5850
50%
GeForce GTX 650 Ti
50%
Radeon HD 7790
53%
Radeon RX 550
53%
GeForce GTX 470
55%
Radeon HD 6870
58%
Radeon HD 5870
60%
GeForce GTX 560 Ti
60%
Radeon HD 4870 X2
61%
GeForce GTX 750 Ti
62%
Radeon HD 6950
64%
GeForce GTX 295
65%
GeForce GTX 650 Ti Boost
65%
Radeon HD 7850
66%
GeForce GTX 480
69%
Radeon HD 6970
71%
Radeon R7 265
72%
Radeon R7 370
72%
Radeon RX 560
72%
GeForce GTX 660
72%
GeForce GTX 570
78%
GeForce GTX 950
79%
Radeon HD 7870 GHz Edition
81%
Radeon R9 270X
82%
GeForce GTX 660 Ti
82%
GeForce GTX 580
83%
GeForce GTX 1050
83%
Radeon HD 7950
84%
Radeon RX 460
85%
Radeon HD 5970
87%
GeForce GTX 760
94%
GeForce GTX 670
96%
GeForce GTX 960
98%
Radeon R9 380
99%
Radeon R9 285
100%
Radeon HD 7970
101%
GeForce GTX 680
103%
GeForce GTX 1050 Ti
106%
GeForce GTX 770
109%
Radeon HD 6990
111%
Radeon R9 280X
113%
GeForce GTX 590
113%
Radeon HD 7970 GHz Edition
125%
GeForce GTX 780
138%
Radeon RX 470
139%
Radeon R9 290
149%
Radeon R9 390
150%
Radeon R9 290X
152%
GeForce GTX 970
154%
GeForce GTX TITAN
155%
Radeon RX 570
156%
GeForce GTX 780 Ti
158%
Radeon R9 390X
159%
Radeon HD 7990
159%
Radeon RX 480
161%
GeForce GTX 690
169%
Radeon RX 580
173%
GeForce GTX 980
175%
GeForce GTX 1060 6 GB
175%
Radeon R9 FURY
176%
Radeon RX 590
192%
Radeon R9 295X2
196%
Radeon R9 FURY X
199%
GeForce GTX 980 Ti
214%
GeForce GTX TITAN X
226%
GeForce GTX 1070
236%
Radeon RX Vega 56
256%
GeForce GTX 1070 Ti
262%
GeForce RTX 2060
262%
Radeon RX Vega 64
269%
GeForce GTX 1080
309%
GeForce RTX 2070
309%
Radeon VII
324%
TITAN X Pascal
332%
GeForce GTX 1080 Ti
358%
GeForce RTX 2080
415%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
925 MHz
Memory Clock
1375 MHz
5500 MHz effective

Memory

Memory Size
3 GB
Memory Type
GDDR5
Memory Bus
384 bit
Bandwidth
264.0 GB/s

Render Config

Shading Units
2048
TMUs
128
ROPs
32
Compute Units
32

Theoretical Performance

Pixel Rate
29.60 GPixel/s
Texture Rate
118.4 GTexel/s
FP32 (float) performance
3,789 GFLOPS
FP64 (double) performance
947.2 GFLOPS (1:4)

Board Design

Slot Width
Dual-slot
Length
10.8 inches
274 mm
TDP
250 W
Outputs
1x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors
1x 6-pin + 1x 8-pin
Board Number
C386-37

Graphics Features

DirectX
12.0 (11_1)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.96
Shader Model
5.1

Card Notes

Retail availability - January 9, 2012

128 Z/Stencil ROP Units

Tahiti GPU Notes

CLRX Version: GCN 1.0
Graphics/Compute: GFX6 (gfx600)
Display Core Engine: 6.0
Unified Video Decoder: 3.2
Video Compression Engine: 1.0

Exact Transistor Count: 4,312,711,873

Retail boards based on this design (47)

Name GPU Clock Memory Clock Other Changes
AFOX HD 7970 925 MHz 1375 MHz
ASUS HD 7970 925 MHz 1375 MHz
ASUS HD 7970 DirectCU II 925 MHz 1375 MHz 11 inches/279 mm, Triple-slot, 2x DVI 4x DisplayPort
ASUS HD 7970 DirectCU II TOP 1000 MHz 1400 MHz 11 inches/279 mm, Triple-slot, 2x DVI 4x DisplayPort
Club 3D HD 7970 925 MHz 1375 MHz
Club 3D HD 7970 '13Series 925 MHz 1375 MHz
Club 3D HD 7970 royalKing 975 MHz 1375 MHz 10.55 inches/268 mm, 2x DVI 1x HDMI 2x mini-DisplayPort
Club 3D HD 7970 royalQueen 925 MHz 1375 MHz 10.55 inches/268 mm, 2x DVI 1x HDMI 2x mini-DisplayPort
Diamond HD 7970 925 MHz 1375 MHz
Diamond HD 7970 Double Diamond Edition 1025 MHz 1450 MHz
Digital Alliance HD 7970 925 MHz 1375 MHz
GIGABYTE HD 7970 925 MHz 1375 MHz
GIGABYTE HD 7970 SOC 1080 MHz 1375 MHz 11.93 inches/303 mm
GIGABYTE HD 7970 WindForce 3X OC 1000 MHz 1375 MHz 11.22 inches/285 mm
HIS HD 7970 925 MHz 1375 MHz
HIS HD 7970 IceQ X² 925 MHz 1375 MHz 12.24 inches/311 mm
HIS HD 7970 IceQ X² Turbo 1050 MHz 1400 MHz 12.24 inches/311 mm
HIS HD 7970 IceQ X² Turbo X 1120 MHz 1400 MHz 12.24 inches/311 mm
MSI HD 7970 925 MHz 1375 MHz
MSI HD 7970 Lightning 1070 MHz 1400 MHz 12 inches/305 mm, 2x DVI 4x mini-DisplayPort
MSI HD 7970 OC 1010 MHz 1375 MHz 10.827 inches/275 mm
MSI HD 7970 Power Edition 925 MHz 1375 MHz 12 inches/305 mm, 2x DVI 4x mini-DisplayPort
MSI HD 7970 TwinFrozr III BE 925 MHz 1375 MHz 10.276 inches/261 mm
MSI HD 7970 TwinFrozr III BE OC 1000 MHz 1375 MHz 10.276 inches/261 mm
PowerColor HD 7970 925 MHz 1375 MHz
PowerColor HD 7970 V2 925 MHz 1375 MHz 11.22 inches/285 mm
PowerColor HD 7970 V3 925 MHz 1375 MHz 10.43 inches/265 mm, 2x DVI 1x HDMI 2x mini-DisplayPort
PowerColor LCS HD 7970 1050 MHz 1425 MHz 11.22 inches/285 mm, Single-slot
PowerColor PCS+ HD 7970 Vortex II 1100 MHz 1425 MHz 11.22 inches/285 mm, 2x DVI 1x HDMI 2x mini-DisplayPort
Sapphire HD 7970 925 MHz 1375 MHz
Sapphire HD 7970 Black Diamond 6 GB 925 MHz 1375 MHz 6 GB, 10.83 inches/275 mm
Sapphire HD 7970 Black Diamond OC 6 GB 1000 MHz 1450 MHz 6 GB, 10.83 inches/275 mm
Sapphire HD 7970 Dual-X 925 MHz 1375 MHz 11.02 inches/280 mm
Sapphire HD 7970 Dual-X 925 MHz 1375 MHz 11.02 inches/280 mm, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 7970 OC 950 MHz 1425 MHz 11.02 inches/280 mm
Sapphire HD 7970 OC Boost 950 MHz 1450 MHz 11.02 inches/280 mm, 2x DVI 1x HDMI 1x DisplayPort
Triplex Parasouls HD 7970 925 MHz 1375 MHz
VisionTek HD 7970 925 MHz 1375 MHz
VTX3D HD 7970 925 MHz 1375 MHz
VTX3D HD 7970 X-Edition 1050 MHz 1425 MHz
XFX Double D HD 7970 925 MHz 1375 MHz
XFX Double D HD 7970 925 MHz 1375 MHz 9.3 inches/236 mm, 2x DVI 1x HDMI 2x mini-DisplayPort
XFX Double D HD 7970 Black Edition 1000 MHz 1425 MHz 10.827 inches/275 mm, 2x DVI 1x HDMI 2x mini-DisplayPort
XFX HD 7970 925 MHz 1375 MHz
XFX HD 7970 Black Edition 1000 MHz 1425 MHz
Yeston HD 7970 925 MHz 1375 MHz 2x DVI 1x HDMI 2x DisplayPort
Zalman HD 7970 925 MHz 1375 MHz