The following performance improvements are noticed with Catalyst 8.3:
- Call of Juarez: Up to 20% improvement is noticed on ATI CrossFireX configured systems containing an ATI Radeon HD38x0 series of product
- Company of Heroes DX10: Up to 17% improvement is noticed, especially at lower resolutions, on ATI Radeon HD38x0 products
- Crysis DX10: Up to 15% improvement is noticed on all supported ATI Radeon products
- Lost Planet DX9: Up to 36% improvement is noticed across all supported ATI Radeon products and in ATI CrossFireX configured systems
- Shadermark 2.1: Performance scores increased up to 35% across all supported Radeon products and in ATI CrossFireX configured systems
- Unreal Tournament 2004: Up to 10% increase in performance is noticed on systems containing an ATI Radeon HD2400, HD2600, or HD3400 series of products on ATI CrossFireX configured systems

