PowerColor PCS+ HD 7950

AX7950-3GBD5-2DHPP

Graphics Processor

Tahiti

Cores

1792

TMUs

112

ROPs

Memory Size

3 GB

Memory Type

GDDR5

Bus Width

384 bit

GPU

PCB Front

PCB Back

Graphics Processor

GPU Name: Tahiti

GPU Variant: Tahiti PRO
(215-0821056)

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: Jan 31st, 2012

Generation: Southern Islands
(HD 7900)

Predecessor: Northern Islands

Successor: Sea Islands

Production: End-of-life

Bus Interface: PCIe 3.0 x16

TechPowerUp Review

Clock Speeds

GPU Clock: ~~800 MHz~~
880 MHz (+10%)

Memory Clock: 1250 MHz
5 Gbps effective

Memory

Memory Size: 3 GB

Memory Type: GDDR5

Memory Bus: 384 bit

Bandwidth: 240.0 GB/s

Render Config

Shading Units: 1792

TMUs: 112

ROPs: 32

Compute Units: 28

L1 Cache: 16 KB (per CU)

L2 Cache: 768 KB

Theoretical Performance

Pixel Rate: ~~25.60 GPixel/s~~
28.16 GPixel/s

Texture Rate: ~~89.60 GTexel/s~~
98.56 GTexel/s

FP32 (float): ~~2.867 TFLOPS~~
3.154 TFLOPS

FP64 (double): ~~716.8 GFLOPS~~
788.5 GFLOPS (1:4)

Board Design

Slot Width: Dual-slot

Length: ~~278 mm~~
275 mm
~~10.9 inches~~
10.8 inches

TDP: 200 W

Suggested PSU: 550 W

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

Power Connectors: 2x 6-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

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 (36)

Name	GPU Clock	Memory Clock	Other Changes
AMD Radeon HD 7950	800 MHz	1250 MHz
ASUS HD 7950	800 MHz	1250 MHz
ASUS HD 7950 DirectCU II	800 MHz	1250 MHz	300 mm/11.8 inches, Triple-slot
ASUS HD 7950 DirectCU II TOP	900 MHz	1250 MHz	300 mm/11.8 inches, Triple-slot
ASUS HD 7950 DirectCU II TOP V2	900 MHz	1250 MHz	279 mm/11 inches, Triple-slot, 2x DVI 1x HDMI 1x DisplayPort
ASUS HD 7950 DirectCU II V2	800 MHz	1250 MHz	279 mm/11 inches, Triple-slot, 2x DVI 1x HDMI 1x DisplayPort
Club 3D HD 7950	800 MHz	1250 MHz
Club 3D HD 7950 royalKing	850 MHz	1250 MHz	268 mm/10.6 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
Club 3D HD 7950 royalQueen	800 MHz	1250 MHz	268 mm/10.6 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
GIGABYTE HD 7950 WindForce 3X OC	900 MHz	1250 MHz	285 mm/11.2 inches
GIGABYTE HD 7950 WindForce 3X OC FZ0	1000 MHz	1250 MHz	285 mm/11.2 inches
HIS HD 7950 Fan	800 MHz	1250 MHz
HIS HD 7950 IceQ	800 MHz	1250 MHz	295 mm/11.6 inches
HIS HD 7950 IceQ Turbo	900 MHz	1250 MHz	295 mm/11.6 inches
HP HD 7950	800 MHz	1250 MHz	292 mm/11.5 inches
Lantic HD 7950	800 MHz	1250 MHz	2x DVI 1x HDMI 2x mini-DisplayPort
MSI HD 7950 Boost	800 MHz	1250 MHz
MSI HD 7950 Boost OC	830 MHz	1250 MHz
MSI HD 7950 OC	830 MHz	1250 MHz	270 mm/10.6 inches
MSI HD 7950 Twin Frozr III	800 MHz	1250 MHz	261 mm/10.3 inches
MSI HD 7950 Twin Frozr III OC	880 MHz	1250 MHz	261 mm/10.3 inches
PowerColor HD 7950 V2	800 MHz	1250 MHz	265 mm/10.4 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
PowerColor PCS+ HD 7950	880 MHz	1250 MHz	275 mm/10.8 inches
Sapphire HD 7950	810 MHz	1250 MHz	265 mm/10.4 inches, 1x DVI 1x HDMI 2x mini-DisplayPort
Sapphire HD 7950 FleX	860 MHz	1250 MHz	290 mm/11.4 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
Sapphire HD 7950 OC	900 MHz	1250 MHz	275 mm/10.8 inches
Sapphire HD 7950 OC 950MHz Edition	950 MHz	1250 MHz	280 mm/11 inches
Sapphire HD 7950 Vapor-X OC	950 MHz	1250 MHz	280 mm/11 inches
VisionTek HD 7950	800 MHz	1250 MHz
VTX3D HD 7950 X-Edition V2	880 MHz	1250 MHz
XFX Double D HD 7950	800 MHz	1250 MHz
XFX Double D HD 7950	800 MHz	1250 MHz	274 mm/10.8 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
XFX Double D HD 7950 Black Edition	900 MHz	1375 MHz
XFX HD 7950	800 MHz	1250 MHz
XFX HD 7950 Black Edition	900 MHz	1375 MHz
Zalman HD 7950 VF3000	800 MHz	1250 MHz