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VTX3D HD 7990

VX7990-6GBD5-2DHJ
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

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
Oct 12th, 2012
Generation
Southern Islands
(HD 7900)
Production
End-of-life
Bus Interface
PCIe 3.0 x16

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
Dual-slot
Triple-slot
Length
11.5 inches
12.4 inches
292 mm
315 mm
TDP
500 W
Suggested PSU
900 W
Outputs
1x DVI
4x mini-DisplayPort

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)

Other retail boards based on this design (9)

Name GPU Clock Memory Clock Other Changes
ASUS ROG ARES II 1100 MHz 1650 MHz 11.8 inches/300 mm, 2x DVI 4x DisplayPort
ASUS ROG ARES II Prototype 925 MHz 1375 MHz 11 inches/279 mm, 2x DVI 1x HDMI 1x DisplayPort
Club 3D HD 7990 925 MHz 1375 MHz 12.4 inches/315 mm, Triple-slot, 2x DVI 1x HDMI 2x mini-DisplayPort
Club 3D HD 7990 925 MHz 1375 MHz 12.126 inches/308 mm, Triple-slot, 2x DVI 1x HDMI 2x mini-DisplayPort
HIS HD 7970 X2 IceQ X² 1050 MHz 1500 MHz 12 inches/305 mm, Triple-slot
PowerColor Devil13 HD 7990 1000 MHz 1375 MHz 12.4 inches/315 mm, Triple-slot, 2x DVI 1x HDMI 2x mini-DisplayPort
PowerColor HD 7990 925 MHz 1375 MHz 12.4 inches/315 mm, Triple-slot, 2x DVI 1x HDMI 2x mini-DisplayPort
Sapphire ATOMIC HD 7990 1100 MHz 1600 MHz 12.4 inches/315 mm, 6x mini-DisplayPort
VTX3D HD 7990 925 MHz 1375 MHz 12.4 inches/315 mm, Triple-slot, 2x DVI 1x HDMI 2x mini-DisplayPort