Testing Methodology
Club3D Radeon HD 7990 specs |
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GPU Comparisons |
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| Graphics Card | GPU Clock (MHz) |
Stream Processors |
Shader Clock (MHz) |
Memory Clock (MHz) |
Memory Bus (bits) |
Graphics Driver | Approx Price | |
| Club3D Radeon HD 7990 6GB | 900/925 | 2,048 x 2 | 900/925 | 5,500 | 384 x 2 | Catalyst 13.2 beta 6 | £750+ | |
| AMD Radeon HD 7970 GHz 3GB | 1,000 (1,050) | 2,048 | 1,000 (1,050) | 6,000 | 384 | Catalyst 13.2 beta 6 | £350 | |
| AMD Radeon HD 7970 3GB CrossFire | 925 | 2,048 x 2 | 925 | 5,500 | 384 x 2 | Catalyst 13.2 beta 6 | £600 | |
| NVIDIA GeForce GTX TITAN 6GB | 837 (876) | 2,688 | 837 (876) | 6,008 | 384 | GeForce 314.09 | £850 | |
| NVIDIA GeForce GTX 690 4GB | 915 (1,019) | 3,072 | 915 (1,019) | 6,008 | 256 x 2 | GeForce 314.07 WHQL | £750 | |
| NVIDIA GeForce GTX 680 2GB | 1,006 (1,058) | 1,536 | 1,006 (1,058) | 6,008 | 256 | GeForce 314.07 WHQL | £375 | |
HEXUS High-End Test Bench |
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| Processor | Intel Core i7-3770K (3.50GHz, 8MB cache, quad-core) | |||||||||||
| CPU Cooler | Intel reference E97378-001 | |||||||||||
| Motherboard | Gigabyte GA-Z77X-UP4 TH | |||||||||||
| Memory | 8GB G.Skill RipJaws (2x4GB) DDR3 @ 1,600MHz | |||||||||||
| Power Supply | Corsair AX750W | |||||||||||
| Storage Device | Samsung 830 Series 256GB SSD | |||||||||||
| Optical Drive | Generic 24x DVD-RW | |||||||||||
| Chassis | Corsair Graphite Series 600T | |||||||||||
| Monitor | Dell 3007FPW and 3x BenQ EW2430 | |||||||||||
| Operating system | Windows 7 Ultimate (64-bit, SP1) | |||||||||||
Testing notes
We tested the Club3D card in both BIOS configurations and found there to be a less than one per cent difference in benchmark scores once the core-boosting red button was depressed. One reason for this is that, at default, the core speed sometimes jumps up to 925MHz anyway.
The numbers on the following pages are derived from the card running at optimum settings - 925MHz core and 5,500MHz memory. You'll note that we use a minimum resolution of 2,560x1,600 for these ultra-enthusiast cards, rising to (three-screen) 5,760x1,080. We believe that anyone contemplating such a card will want to know how it stacks up against some lofty competition when really pushed to the limit.