Sapphire HD 6950

100312SR

Graphics Processor

Cayman

Cores

1408

TMUs

ROPs

Memory Size

2 GB

Memory Type

GDDR5

Bus Width

256 bit

GPU

I/O

Top

Graphics Processor

GPU Name: Cayman

GPU Variant: Cayman PRO
(215-0807019)

Architecture: TeraScale 3

Foundry: TSMC

Process Size: 40 nm

Transistors: 2,640 million

Density: 6.8M / mm²

Die Size: 389 mm²

Graphics Card

Release Date: Dec 14th, 2010

Generation: Northern Islands
(HD 6900)

Predecessor: Evergreen

Successor: Southern Islands

Production: End-of-life

Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 800 MHz

Memory Clock: 1250 MHz
5 Gbps effective

Memory

Memory Size: 2 GB

Memory Type: GDDR5

Memory Bus: 256 bit

Bandwidth: 160.0 GB/s

Render Config

Shading Units: 1408

TMUs: 88

ROPs: 32

Compute Units: 22

L1 Cache: 8 KB (per CU)

L2 Cache: 512 KB

Theoretical Performance

Pixel Rate: 25.60 GPixel/s

Texture Rate: 70.40 GTexel/s

FP32 (float): 2.253 TFLOPS

FP64 (double): 563.2 GFLOPS (1:4)

Board Design

Slot Width: Dual-slot

Length: 286 mm
11.3 inches

Width: 126 mm
5 inches

Height: 42 mm
1.7 inches

TDP: 200 W

Suggested PSU: 550 W

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

Power Connectors: 2x 6-pin

Board Number: 109-C21647-00

Graphics Features

DirectX: 11.2 (11_0)

OpenGL: 4.4

OpenCL: 1.2

Vulkan: N/A

Shader Model: 5.0

Cayman GPU Notes

Generation: Northern Islands
Desktop Variant: Antilles
Graphics/Compute: GFX5
Display Core Engine: 5.0
Unified Video Decoder: 3.1

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

Windows Vista :
Catalyst Software Suite 13.12

Windows 7 / 8.1 / 10:
Catalyst Software Suite 15.7.1 / 16.2.1 Beta

Other retail boards based on this design (27)

Name	GPU Clock	Memory Clock	Other Changes
ASUS HD 6950 DirectCU II	810 MHz	1250 MHz	297 mm/11.7 inches, Triple-slot, 2x DVI 4x DisplayPort
Club 3D HD 6950 CoolStream Edition	900 MHz	1250 MHz	275 mm/10.8 inches
GIGABYTE HD 6950 WindForce 3X OC 1 GB	870 MHz	1250 MHz	1024 MB, 290 mm/11.4 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6950 Fan	800 MHz	1250 MHz
HIS HD 6950 Fan 1 GB	800 MHz	1250 MHz	1024 MB, 255 mm/10 inches
HIS HD 6950 Fan 2 GB	800 MHz	1250 MHz	255 mm/10 inches
HIS HD 6950 Fan Turbo	840 MHz	1280 MHz
HIS HD 6950 IceQ	800 MHz	1250 MHz	287 mm/11.3 inches
HIS HD 6950 IceQ X 1 GB	800 MHz	1250 MHz	1024 MB, 260 mm/10.2 inches
HIS HD 6950 IceQ X 2 GB	800 MHz	1250 MHz	260 mm/10.2 inches
HIS HD 6950 IceQ X Turbo 1 GB	840 MHz	1280 MHz	1024 MB, 260 mm/10.2 inches
HIS HD 6950 IceQ X Turbo 2 GB	840 MHz	1280 MHz	260 mm/10.2 inches
HIS HD 6950 IceQ X Turbo X 1 GB	880 MHz	1300 MHz	1024 MB, 260 mm/10.2 inches
HIS HD 6950 IceQ X Turbo X 2 GB	880 MHz	1300 MHz	260 mm/10.2 inches
MSI HD 6950 Twin Frozr II OC	810 MHz	1250 MHz	275 mm/10.8 inches
MSI HD 6950 Twin Frozr III OC	850 MHz	1300 MHz	1024 MB, 270 mm/10.6 inches
MSI HD 6950 Twin Frozr III PE OC	850 MHz	1300 MHz	270 mm/10.6 inches
PowerColor HD 6950 PCS++	880 MHz	1250 MHz	275 mm/10.8 inches
Sapphire HD 6950	800 MHz	1250 MHz
Sapphire HD 6950 Dirt3	800 MHz	1250 MHz	260 mm/10.2 inches, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6950 FleX	800 MHz	1250 MHz	270 mm/10.6 inches
Sapphire HD 6950 Toxic	880 MHz	1300 MHz	270 mm/10.6 inches
XFX Double D HD 6950 XXX 1 GB	830 MHz	1300 MHz	1024 MB, 256 mm/10.1 inches
XFX Double D HD 6950 XXX 2 GB	830 MHz	1300 MHz	256 mm/10.1 inches
XFX HD 6950 XXX 1 GB	830 MHz	1300 MHz	1024 MB, 259 mm/10.2 inches
XFX HD 6950 XXX 2 GB	830 MHz	1300 MHz	259 mm/10.2 inches
Yeston HD 6950 Game Master	800 MHz	1250 MHz