Club 3D HD 7970 XT2 '13Series

CGAX-7977S13

Graphics Processor

Tahiti

Cores

2048

TMUs

128

ROPs

Memory Size

3 GB

Memory Type

GDDR5

Bus Width

384 bit

GPU

Graphics Processor

GPU Name: Tahiti

GPU Variant: Tahiti XT2
(215-0821065)

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: Jun 22nd, 2012

Generation: Southern Islands
(HD 7900)

Predecessor: Northern Islands

Successor: Sea Islands

Production: End-of-life

Bus Interface: PCIe 3.0 x16

Clock Speeds

Base Clock: ~~1000 MHz~~
1050 MHz (+5%)

Boost Clock: ~~1050 MHz~~
1100 MHz (+5%)

Memory Clock: 1500 MHz
6 Gbps effective

Memory

Memory Size: 3 GB

Memory Type: GDDR5

Memory Bus: 384 bit

Bandwidth: 288.0 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: ~~33.60 GPixel/s~~
35.20 GPixel/s

Texture Rate: ~~134.4 GTexel/s~~
140.8 GTexel/s

FP32 (float): ~~4.301 TFLOPS~~
4.506 TFLOPS

FP64 (double): ~~1,075 GFLOPS~~
1,126 GFLOPS (1:4)

Board Design

Slot Width: Dual-slot

Length: ~~275 mm~~
268 mm
~~10.8 inches~~
10.6 inches

TDP: 300 W

Suggested PSU: 700 W

Outputs: 1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2

Power Connectors: 1x 6-pin + 1x 8-pin

Board Number: 109-C38637-00

Graphics Features

DirectX: 12 (11_1)

OpenGL: 4.6

OpenCL: 2.1 (1.2)

Vulkan: 1.2.170

Shader Model: 6.5 (5.1)

Tahiti GPU Notes

Generation: Southern Islands
Desktop Variant: New Zealand / 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

Other retail boards based on this design (17)

Name	GPU Clock	Boost Clock	Memory Clock	Other Changes
AMD Radeon HD 7970 GHz Edition	1000 MHz	1050 MHz	1500 MHz	2x DVI 1x HDMI 1x DisplayPort
ASUS ROG Matrix HD 7970	1000 MHz	1050 MHz	1500 MHz	279 mm/11 inches, Triple-slot, 2x DVI 4x DisplayPort
ASUS ROG Matrix HD 7970 Platinum	1050 MHz	1100 MHz	1650 MHz	279 mm/11 inches, Triple-slot, 2x DVI 4x DisplayPort
Club 3D HD 7970 royalAce	1050 MHz	1100 MHz	1500 MHz	268 mm/10.6 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
Club 3D HD 7970 XT2 '13Series	1050 MHz	1100 MHz	1500 MHz	268 mm/10.6 inches
Diamond HD 7970 GHz Edition	1000 MHz	1050 MHz	1500 MHz	2x DVI 1x HDMI 1x DisplayPort
GIGABYTE HD 7970 WindForce 3X OC	1050 MHz	1100 MHz	1500 MHz	285 mm/11.2 inches
HIS HD 7970 IceQ X2 GHz Edition	1000 MHz	1050 MHz	1500 MHz	311 mm/12.2 inches
HIS HD 7970 X IceQ X2	1000 MHz	1050 MHz	1500 MHz	311 mm/12.2 inches, 1x DVI 1x HDMI 4x mini-DisplayPort
HIS HD 7970 X IceQ X2 Turbo	1150 MHz	1180 MHz	1500 MHz	311 mm/12.2 inches, 1x DVI 1x HDMI 4x mini-DisplayPort
MSI HD 7970 Lightning BE	1070 MHz	1150 MHz	1500 MHz	305 mm/12 inches, 2x DVI 4x mini-DisplayPort
MSI HD 7970 Power Edition BE	1020 MHz	1100 MHz	1500 MHz	305 mm/12 inches, 2x DVI 4x mini-DisplayPort
Sapphire HD 7970 Toxic 6 GB	1100 MHz	1200 MHz	1600 MHz	6 GB, 2x DVI 1x HDMI 2x mini-DisplayPort
Sapphire HD 7970 Vapor-X	1000 MHz	1050 MHz	1500 MHz	2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 7970 Vapor-X 6 GB	1050 MHz	1100 MHz	1500 MHz	6 GB, 2x DVI 1x HDMI 2x mini-DisplayPort
VisionTek HD 7970 GHz Edition	1000 MHz	1050 MHz	1500 MHz	268 mm/10.6 inches
XFX Double D HD 7970 GHz Edition	1000 MHz	1050 MHz	1500 MHz