PowerColor HD 7990

AX7990-6GBD5-2DHJ

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

I/O

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Graphics Processor

GPU Name: New Zealand

GPU Variant: New Zealand
(215-0821060)

Architecture: GCN 1.0

Foundry: TSMC

Process Size: 28 nm

Transistors: 4,313 million

Density: 12.3M / mm²

Die Size: 352 mm²

Graphics Card

Release Date: ~~Aug 31st, 2012~~
Oct 4th, 2012

Generation: Southern Islands
(HD 7900)

Predecessor: Northern Islands

Successor: Sea Islands

Production: End-of-life

Bus Interface: PCIe 3.0 x16

Clock Speeds

GPU Clock: 925 MHz

Memory Clock: 1375 MHz
5.5 Gbps 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): 3.789 TFLOPS

FP64 (double): 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 1.4a
2x mini-DisplayPort 1.2

Power Connectors: 3x 8-pin

Board Number: C386

Graphics Features

DirectX: 12 (11_1)

OpenGL: 4.6

OpenCL: 2.1 (1.2)

Vulkan: 1.2.170

Shader Model: 6.5 (5.1)

Card Notes

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

New Zealand GPU Notes

Generation: Southern Islands
Desktop Variant: Tahiti / Malta
Graphics/Compute: GFX6 (gfx600)
Display Core Engine: 6.0
Unified Video Decoder: 3.2
Video Compression Engine: 1.0
CLRX: GCN 1.0

Exact Transistor Count: 4,312,711,873

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

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 14.4

Windows Vista :
Catalyst Software Suite 13.12

Windows 7:
32-bit: Radeon Software: Adrenalin Edition 18.9.3
64-bit: AMD Software: Adrenalin Edition 22.6.1

Windows 8.1:
32-bit: Radeon Software: Crimson ReLive Edition 16.12.2 / 17.1.2
64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1

Windows 10:
32-bit: Radeon Software: Adrenalin Edition 18.9.3
64-bit: AMD Software: Adrenalin Edition 22.6.1

Other 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