HIS HD 7950 IceQ X2 Boost Clock

H795QMC3G2M

Graphics Processor

Tahiti

Cores

1792

TMUs

112

ROPs

Memory Size

3 GB

Memory Type

GDDR5

Bus Width

384 bit

GPU

I/O

Top

Bottom

PCB Front

PCB Back

Graphics Processor

GPU Name: Tahiti

GPU Variant: Tahiti PRO2
(215-0821282)

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~~
Jul 6th, 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

Base Clock: 850 MHz

Boost Clock: ~~925 MHz~~
950 MHz (+3%)

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: ~~29.60 GPixel/s~~
30.40 GPixel/s

Texture Rate: ~~103.6 GTexel/s~~
106.4 GTexel/s

FP32 (float): ~~3.315 TFLOPS~~
3.405 TFLOPS

FP64 (double): ~~828.8 GFLOPS~~
851.2 GFLOPS (1:4)

Board Design

Slot Width: Dual-slot

Length: ~~275 mm~~
311 mm
~~10.8 inches~~
12.2 inches

Width: ~~111 mm~~
150 mm
~~4.4 inches~~
5.9 inches

Height: ~~38 mm~~
42 mm
~~1.5 inches~~
1.7 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

Other retail boards based on this design (18)

Name	GPU Clock	Boost Clock	Memory Clock	Other Changes
AMD Radeon HD 7950 Boost	850 MHz	925 MHz	1250 MHz
Club 3D HD 7950 '13Series	880 MHz	930 MHz	1250 MHz	268 mm/10.6 inches
Club 3D HD 7950 royalKing	880 MHz	930 MHz	1250 MHz	268 mm/10.6 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
Club 3D HD 7950 royalQueen	850 MHz	925 MHz	1250 MHz	268 mm/10.6 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
Dataland HD 7950	850 MHz	925 MHz	1250 MHz
HIS HD 7950 Boost	850 MHz	925 MHz	1250 MHz
HIS HD 7950 IceQ Boost Clock	850 MHz	925 MHz	1250 MHz	295 mm/11.6 inches, Triple-slot
HIS HD 7950 IceQ X2 Boost Clock	850 MHz	950 MHz	1250 MHz	311 mm/12.2 inches
MSI HD 7950 Twin Frozr III Boost OC	880 MHz	960 MHz	1250 MHz	261 mm/10.3 inches
PowerColor HD 7950 Boost State V4	850 MHz	925 MHz	1250 MHz
PowerColor HD 7950 Boost State V5	850 MHz	925 MHz	1250 MHz	267 mm/10.5 inches, 2x DVI 1x HDMI 2x DisplayPort
PowerColor PCS+ HD 7950 Boost State V3	900 MHz	950 MHz	1250 MHz
Sapphire HD 7950 Boost	850 MHz	925 MHz	1250 MHz	292 mm/11.5 inches
Sapphire HD 7950 Dual-X Platinum Edition	850 MHz	925 MHz	1250 MHz
Sapphire HD 7950 Dual-X with Boost	850 MHz	925 MHz	1250 MHz	270 mm/10.6 inches, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 7950 FleX OC Boost	860 MHz	925 MHz	1250 MHz	290 mm/11.4 inches, 2x DVI 1x HDMI 2x mini-DisplayPort
Sapphire HD 7950 Vapor-X OC Boost	850 MHz	950 MHz	1250 MHz	2x DVI 1x HDMI 1x DisplayPort
VTX3D HD 7950 X-Edition Boost	880 MHz	930 MHz	1250 MHz