Sapphire HD 7970 Toxic 6 GB Review 48

Sapphire HD 7970 Toxic 6 GB Review

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AMD's Radeon HD 7970 has been on the market for a while now. The card introduced a new shader architecture and brought numerous improvements in power consumption. It met heavy opposition from NVIDIA's GeForce GTX 680 and 670, which has caused HD 7970's pricing to go down quite a bit.

Sapphire's HD 7970 Toxic 6 GB is a maxed out enthusiast class design of the HD 7970. It uses a large dual-fan cooler by Sapphire, paired with a custom-designed PCB and 6 GB of fast GDDR5 memory. Sapphire has also overclocked their card out of the box to frequencies of 1100 MHz GPU and 1500 MHz memory. You can use Sapphire's "Lethal Boost" button that is implemented using the dual-BIOS function, should you want to take the HD 7970 to even higher performance levels. With this BIOS, clocks are increased to 1200 MHz GPU and 1600 MHz memory.

In our Sapphire's HD 7970 Toxic 6 GB review we will test both the normal and the boost BIOS (results marked as "Sapphire HD 7970 Toxic Boost").

Pricing of the Sapphire HD 7970 Toxic 6 GB is certainly not low; the card retails around $700.

HD 7970 Market Segment Analysis
GTX 660 Ti
HD 7950
GTX 670
HD 7970
HD 7970
GHz Ed.
Sapphire HD
7970 Toxic
GTX 680
HD 6990
GTX 590
GTX 690
Shader Units13441792134420482048204815362x 15362x 5122x 1536
ROPs243232323232322x 322x 482x 32
Graphics ProcessorGK104TahitiGK104TahitiTahitiTahitiGK1042x Cayman2x GF1102x GK104
Transistors3500M4310M3500M4310M4310M4310M3500M2x 2640M2x 3000M2x 3500M
Memory Size2048 MB3072 MB2048 MB3072 MB3072 MB6144 MB2048 MB2x 2048 MB2x 1536 MB2x 2048 MB
Memory Bus Width192 bit384 bit256 bit384 bit384 bit384 bit256 bit2x 256 bit2x 384 bit2x 256 bit
Core Clock915 MHz+800 MHz915 MHz+925 MHz1050 MHz1100 / 1200 MHz1006 MHz+830 MHz607 MHz915 MHz+
Memory Clock1502 MHz1250 MHz1502 MHz1375 MHz1500 MHz1500 / 1600 MHz1502 MHz1250 MHz855 MHz1502 MHz
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