AMD Radeon HD 6990

Graphics Processor

Antilles x2

Cores

1536 x2

TMUs

96 x2

ROPs

32 x2

Memory Size

2 GB x2

Memory Type

GDDR5

Bus Width

256 bit x2

GPU

I/O

Top

Rear

Back

PCB Front

PCB Back

Recommended Gaming Resolutions:

1600x900
1920x1080
2560x1440

The Radeon HD 6990 was an enthusiast-class graphics card by AMD, launched on March 8th, 2011. Built on the 40 nm process, and based on the Antilles graphics processor, in its Antilles XT variant, the card supports DirectX 11.2. The Antilles graphics processor is a large chip with a die area of 389 mm² and 2,640 million transistors. Radeon HD 6990 combines two graphics processors to increase performance. It features 1536 shading units, 96 texture mapping units, and 32 ROPs, per GPU. AMD has paired 4 GB GDDR5 memory with the Radeon HD 6990, which are connected using a 256-bit memory interface per GPU (each GPU manages 2,048 MB). The GPU is operating at a frequency of 830 MHz, memory is running at 1250 MHz (5 Gbps effective).
Being a dual-slot card, the AMD Radeon HD 6990 draws power from 2x 8-pin power connectors, with power draw rated at 375 W maximum. Display outputs include: 1x DVI, 4x mini-DisplayPort 1.2. Radeon HD 6990 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card's dimensions are 310 mm x 115 mm x 40 mm, and it features a dual-slot cooling solution. Its price at launch was 699 US Dollars.

Graphics Processor

GPU Name: Antilles

GPU Variant: Antilles XT
(215-0807027)

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: Mar 8th, 2011

Generation: Northern Islands
(HD 6900)

Predecessor: Evergreen

Successor: Southern Islands

Production: End-of-life

Launch Price: 699 USD

Bus Interface: PCIe 2.0 x16

Reviews: 47 in our database

Relative Performance

Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.

Board Design

Slot Width: Dual-slot

Length: 310 mm
12.2 inches

Width: 115 mm
4.5 inches

Height: 40 mm
1.6 inches

TDP: 375 W

Suggested PSU: 750 W

Outputs: 1x DVI
4x mini-DisplayPort 1.2

Power Connectors: 2x 8-pin

Board Number: 109-C20647-00

Retail boards based on this design (11)

Name	GPU Clock	Memory Clock	Other Changes
ASUS HD 6990	830 MHz	1250 MHz
Club 3D HD 6990	830 MHz	1250 MHz
Diamond HD 6990	830 MHz	1250 MHz
GIGABYTE HD 6990	830 MHz	1250 MHz
HIS HD 6990 Fan	830 MHz	1250 MHz
MSI HD 6990	830 MHz	1250 MHz
PowerColor HD 6990	830 MHz	1250 MHz
PowerColor HD 6990 LCS	880 MHz	1250 MHz	305 mm/12 inches, Single-slot
Sapphire HD 6990	830 MHz	1250 MHz
VTX3D HD 6990	830 MHz	1250 MHz
XFX HD 6990	830 MHz	1250 MHz

Name

GPU Clock

Memory Clock

Other Changes

ASUS HD 6990