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AMD Radeon HD 7970 X2

Graphics Processor
New Zealand x2
Cores
2048 x2
TMUs
128 x2
ROPs
32 x2
Memory Size
3 GB x2
Memory Type
GDDR5
Bus Width
384 bit x2
GPU Chip
GPU
I/O
I/O
Back
Back
The Radeon HD 7970 X2 was an enthusiast-class graphics card by AMD, launched in August 2012. Built on the 28 nm process, and based on the New Zealand graphics processor, the card supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. The New Zealand graphics processor is a large chip with a die area of 352 mm² and 4,313 million transistors. Radeon HD 7970 X2 combines two graphics processors to increase performance. It features 2048 shading units, 128 texture mapping units, and 32 ROPs, per GPU. AMD has paired 6 GB GDDR5 memory with the Radeon HD 7970 X2, which are connected using a 384-bit memory interface per GPU (each GPU manages 3,072 MB). The GPU is operating at a frequency of 925 MHz, memory is running at 1375 MHz.
Being a triple-slot card, the AMD Radeon HD 7970 X2 draws power from 3x 8-pin power connectors, with power draw rated at 500 W maximum. Display outputs include: 2x DVI, 1x HDMI, 2x mini-DisplayPort. Radeon HD 7970 X2 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card's dimensions are 308 mm x 137 mm x 62 mm, and it features a triple-slot cooling solution. Its price at launch was 899 US Dollars.

Graphics Processor

GPU Name
New Zealand
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
4,313 million
Die Size
352 mm²

Graphics Card

Release Date
Aug 31st, 2012
Generation
Southern Islands
(HD 7900)
Production
End-of-life
Launch Price
899 USD
Bus Interface
PCIe 3.0 x16
Reviews
37 in our database

Relative Performance

2%
GeForce 210
3%
GeForce 9400 GT
4%
Radeon HD 4550
5%
Radeon HD 5450
5%
Radeon HD 6450
6%
GeForce GT 520
7%
GeForce GT 220
9%
GeForce GT 430
9%
Radeon HD 5570
10%
Radeon HD 4670
11%
GeForce GT 440
11%
GeForce GT 240
13%
GeForce 9600 GT
13%
Radeon HD 5670
14%
GeForce GT 640
15%
GeForce 9800 GT
16%
Radeon HD 6670
16%
Radeon HD 4830
17%
Radeon HD 4770
18%
Radeon HD 4850
18%
GeForce GTS 250
19%
GeForce GTS 450
20%
Radeon HD 5750
22%
Radeon HD 7750
23%
Radeon HD 5770
23%
GeForce GTX 260
23%
Radeon HD 4870
23%
Radeon Vega 8
24%
GeForce GTX 550 Ti
24%
GeForce GTX 650
25%
Radeon HD 5830
27%
Radeon HD 6790
27%
Radeon HD 4890
28%
GeForce GTX 460
28%
Radeon RX Vega 11
28%
GeForce GT 1030
29%
GeForce GTX 275
29%
Radeon HD 7770 GHz Edition
29%
GeForce GTX 280
29%
GeForce GTX 465
31%
Radeon HD 6850
31%
GeForce GTX 285
34%
Radeon HD 5850
34%
GeForce GTX 650 Ti
34%
Radeon HD 7790
36%
Radeon RX 550
36%
GeForce GTX 470
37%
Radeon HD 6870
40%
Radeon HD 5870
41%
GeForce GTX 560 Ti
41%
Radeon HD 4870 X2
42%
GeForce GTX 750 Ti
42%
Radeon HD 6950
44%
GeForce GTX 295
44%
GeForce GTX 650 Ti Boost
44%
Radeon HD 7850
45%
GeForce GTX 480
47%
Radeon HD 6970
48%
Radeon R7 265
49%
Radeon RX 460
49%
Radeon R7 370
49%
GeForce GTX 660
49%
GeForce GTX 570
50%
Radeon RX 560
53%
GeForce GTX 950
54%
Radeon HD 7870 GHz Edition
55%
Radeon R9 270X
56%
GeForce GTX 660 Ti
56%
GeForce GTX 580
56%
GeForce GTX 1050
57%
Radeon HD 7950
58%
Radeon HD 5970
59%
GeForce GTX 760
64%
GeForce GTX 670
65%
GeForce GTX 960
67%
Radeon R9 380
68%
Radeon R9 285
68%
Radeon HD 7970
69%
GeForce GTX 680
71%
GeForce GTX 1050 Ti
72%
GeForce GTX 770
74%
Radeon HD 6990
76%
Radeon R9 280X
77%
GeForce GTX 590
77%
Radeon HD 7970 GHz Edition
85%
GeForce GTX 780
88%
GeForce GTX 1650
94%
Radeon RX 470
95%
Radeon R9 290
100%
Radeon HD 7970 X2
100%
Radeon RX 570
101%
Radeon R9 390
102%
Radeon R9 290X
103%
GeForce GTX 970
105%
GeForce GTX TITAN
106%
GeForce GTX 780 Ti
108%
Radeon R9 390X
108%
Radeon HD 7990
109%
Radeon RX 480
110%
GeForce GTX 690
112%
GeForce GTX 1060 6 GB
114%
Radeon RX 5500 OEM
115%
Radeon RX 580
116%
Radeon RX 5500 XT
118%
GeForce GTX 980
119%
GeForce GTX 1650 SUPER
119%
Radeon R9 FURY
125%
Radeon RX 590
131%
Radeon R9 295X2
132%
GeForce GTX 1660
134%
Radeon R9 FURY X
136%
GeForce GTX 980 Ti
139%
GeForce GTX TITAN X
148%
GeForce GTX 1660 SUPER
152%
GeForce GTX 1660 Ti
152%
GeForce GTX 1070
161%
Radeon RX Vega 56
171%
GeForce GTX 1070 Ti
176%
Radeon RX Vega 64
178%
GeForce GTX 1080
178%
GeForce RTX 2060
186%
Radeon RX 5700
200%
GeForce RTX 2060 SUPER
208%
GeForce RTX 2070
213%
Radeon RX 5700 XT
215%
Radeon VII
221%
TITAN X Pascal
227%
GeForce GTX 1080 Ti
230%
GeForce RTX 2070 SUPER
244%
GeForce RTX 2080
259%
GeForce RTX 2080 SUPER
286%
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
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
L1 Cache
16 KB (per CU)
L2 Cache
768 KB

Theoretical Performance

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

Board Design

Slot Width
Triple-slot
Length
308 mm
12.1 inches
Width
137 mm
5.4 inches
Height
62 mm
2.4 inches
TDP
500 W
Suggested PSU
900 W
Outputs
2x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors
3x 8-pin
Board Number
C386

Graphics Features

DirectX
12 (11_1)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.2.131
Shader Model
5.1

Card Notes

2x Tahiti XT Cores.
2x Tahiti XT2 Cores. ARES II/IceQ X²

New Zealand GPU Notes

Architecture Codename: Southern Islands
Chip Variant: Tahiti
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

New Zealand Chip Numbers:
Tahiti XT (215-0821060)
Tahiti XT2 (215-0821065)

Retail boards based on this design (9)

Name GPU Clock Memory Clock Other Changes
ASUS ROG ARES II 1100 MHz 1650 MHz 300 mm/11.8 inches, Dual-slot, 2x DVI 4x DisplayPort
ASUS ROG ARES II Prototype 925 MHz 1375 MHz 279 mm/11 inches, 2x DVI 1x HDMI 1x DisplayPort
Club 3D HD 7990 925 MHz 1375 MHz
Club 3D HD 7990 925 MHz 1375 MHz
HIS HD 7970 X2 IceQ X² 1050 MHz 1500 MHz 305 mm/12 inches
PowerColor Devil13 HD 7990 1000 MHz 1375 MHz
PowerColor HD 7990 925 MHz 1375 MHz
Sapphire ATOMIC HD 7990 1100 MHz 1600 MHz 315 mm/12.4 inches, 6x mini-DisplayPort
VTX3D HD 7990 925 MHz 1375 MHz