AMD · Radeon HD 6000 Series

AMD Radeon HD 6990

The AMD Radeon HD 6990 is a graphics card released on March 8, 2011, built on the TeraScale 3 architecture using a 40 nm process. It has 2 GB of video memory on a 256-bit bus, a boost clock of 830 MHz and a 375 W board power rating. It scores 3,118 in the PassMark G3D benchmark. It supports DirectX 11 and OpenGL 4.4.

TeraScale 3Antilles XT40 nm

6/10 key specs recorded · 22 facts

Depth: 33 recorded fields, 4 PassMark workloads

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 6 of 10 tracked specifications recorded.

PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)PassMark Videocard Benchmark

Shading units

n/a

Memory

2 GB

256-bit

Boost clock

n/a

830 MHz base

Board power

375 W

Performance

The AMD Radeon HD 6990 scores 3,118 in the PassMark G3D benchmark, higher than 73.3% of the 2,658 GPUs benchmarked (PassMark rank #749), measured across 17 submitted results. Its PassMark G2D score is 504.

PassMark G3D Mark

3,118

Rank #749
Faster than 73.3% of 2,658 GPUs
17 samples

0relative to the fastest GPU on record (41,928)

PassMark workload tests

DirectX 9 112 fps

reference: fastest recorded 526 fps · faster than 77.6% of 1,675 GPUs

DirectX 10 19 fps

reference: fastest recorded 231 fps · faster than 61.1% of 1,602 GPUs

DirectX 11 27 fps

reference: fastest recorded 362 fps · faster than 57% of 1,430 GPUs

GPU Compute 1,123 ops/s

reference: fastest recorded 26,591 ops/s · faster than 51.4% of 1,447 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the AMD Radeon HD 6990 averages DirectX 9 112 fps, DirectX 10 19 fps, DirectX 11 27 fps and GPU Compute 1,123 ops/s, across 17 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

As stated by PassMark

Category Desktop

Bus interface PCIe 2.1 x16

Max memory 2 GB

Core clock 830 MHz

Memory clock 1250 MHz

DirectX 11

OpenGL 4.4

Max TDP 375 W

First benchmarked 2011-03-23

Samples 17

PassMark listing (collected 2026-10-01)

PassMark's own listing for the AMD Radeon HD 6990 states the PCIe 2.1 x16 interface, up to 2 GB of memory, a core clock of 830 MHz, DirectX 11 and OpenGL 4.4, first benchmarked on 2011-03-23. These are PassMark's figures, shown separately from the specification tables above.

Not to be confused with

This page covers the AMD Radeon HD 6990 specifically. It is a different product from AMD Radeon HD 6990M, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture TeraScale 3

Codename Antilles XT

Chip Not recorded

Process node 40 nm

Transistors Not recorded

Die size Not recorded

The AMD Radeon HD 6990 is based on the TeraScale 3 architecture, uses the Antilles XT graphics processor and is manufactured on a 40 nm process.

Clock speeds

Base clock 830 MHz

Boost clock Not recorded

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The AMD Radeon HD 6990 runs at a base clock of 830 MHz.

Memory

Size 2 GB

Type Not recorded

Bus width 256-bit

Bandwidth Not recorded

The AMD Radeon HD 6990 is equipped with 2 GB of memory and uses a 256-bit memory bus.

Board and power

The AMD Radeon HD 6990 has a board power rating of 375 W and it connects over PCIe 2.1 x16.

Board power (TDP) 375 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface PCIe 2.1 x16

Market

Launched March 8, 2011

Launch price $699

Status Not recorded

Form factor Not recorded

Segment Desktop

Series Radeon HD 6000 Series

The AMD Radeon HD 6990 was released on March 8, 2011 and launched at a price of $699.

Benchmarks

PassMark G3D 3,118

PassMark G2D 504

Rank #749

Samples 17

Graphics and compute APIs

The AMD Radeon HD 6990 supports DirectX 11 and OpenGL 4.4.

DirectX 11 (stated by PassMark)

OpenGL 4.4 (stated by PassMark)

CUDA is an NVIDIA technology and does not apply to the AMD Radeon HD 6990. Feex has no recorded Vulkan version for the AMD Radeon HD 6990. Feex has no recorded OpenCL version for the AMD Radeon HD 6990.