[ DUAL-GPU GRAPHICS CARDS // IDENTIFIED COMPONENT ]
AMD Radeon HD 6990 4 GB dual-GPU
Dual Cayman / Northern Islands, 2011. This entry identifies one model or reference configuration; related products and OEM variants are distinguished below.
MODEL / VARIANT: Memory is partitioned per GPU. Dual BIOS switch selects performance/clock profile; board partner versions may differ. Requires appropriate PSU and multi-slot clearance.
Recorded specifications
| Cataloged product | AMD Radeon HD 6990 4 GB dual-GPU |
|---|---|
| Generation / core | Dual Cayman / Northern Islands, 2011 |
| Core & memory | Two Cayman GPUs; 4 GB GDDR5 total (2 GB per GPU); 3072 stream processors aggregate; 830 MHz default core, with higher BIOS mode; 375 W board power. |
| Host interface & I/O | PCI Express 2.1 x16; two 8-pin PCIe power connectors; two DVI and four Mini DisplayPort outputs on reference bracket. |
| Variant boundary | Memory is partitioned per GPU. Dual BIOS switch selects performance/clock profile; board partner versions may differ. Requires appropriate PSU and multi-slot clearance. |
| Archival identification | Record full part number, PCB or module revision, BIOS/firmware, device/subsystem IDs, driver version, adapters, physical condition and source-document edition. |
Compatibility, service & archival notes
Reference 375 W card includes dual BIOS; using performance BIOS changes clocks and power behavior.
Record BIOS switch position and firmware; inspect 8-pin inputs, cooler and fan. Provide open intake and exhaust; verify Catalyst/CrossFire driver and both GPU devices.
- Check signaling, slot keying, lane width, power pinout, board/module dimensions, case clearance, airflow and PSU requirements for the exact specimen.
- Use drivers supporting its device ID and target OS. Preserve original installer and firmware copies, and record their versions before changes.
- Do not energize boards with corrosion, cracks, damaged connectors, obstructed cooling or suspected shorts; document condition before bench testing.
Manufacturer, model & standards sources
- Radeon HD 6000 series model listingModel/product-history reference; compare the exact card revision and nameplate.
- AMD/ATI legacy product and driver archiveManufacturer or archived product/driver documentation; exact OEM board details may differ.
- PCI Express interface standardHost interface reference; confirm exact physical and electrical compatibility.
- DanielC — AMD Radeon HD 6990 BenchmarkIndependent video review; treat as supplementary context, not primary manufacturer documentation.
Reference specifications do not supersede the board vendor's manual or nameplate. Performance figures are vendor claims unless explicitly identified as measured.