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Sapphire HD7950 Dual-X FleX Edition Review (OC)

Rating: 9.0.

The Sapphire FleX cards have been firm favourites in the Kitguru offices since they were initially launched and today we are looking at the latest high end model – the HD7950 FleX. Not only have Sapphire included their custom display technology, but the card receives an overclock and a proprietary two fan cooler. Today we look at this card with a variety of games, including some titles running across three 24 inch screens at 5760×1080 resolution.

Sapphire have nailed their designs in 2012, they have been consistently producing some of the quietest discrete solutions. Even their high end cards have been whisper quiet, thanks to optimised fan profiles and the adoption of high grade dual fan cooling systems.

Product Sapphire HD7950 FleX AMD HD7950 AMD HD7870 AMD HD7850
Core Clock speed 860mhz 800mhz 1000mhz 860mhz
Transistors 4.31B 4.31B 2.8B 2.8B
Stream Processors 1,792 1,792 1,280 1,024
Compute Performance 2.87 TFLOPS 2.87 TFLOPS 2.56 TFLOPS 1.76 TFLOPS
Texture Units 112 112 80 64
Texture Fillrate 89.6 GT/s 89.6 GT/s 80 GT/s 55.0 GT/s
ROPs 32 32 32 32
Pixel Fillrate 25.6 GP/s 25.6 GP/s 32.0 GP/s 27.52 GP/s
Z/Stencil 128 128 128 128
Memory Type 3GB GDDR5 3GB GDDR5 2GB GDDR5 2GB GDDR5
Memory Clock 1,250mhz 1,250mhz 1,200mhz 1,200mhz
Memory Data Rate 5.0 Gbps 5.0 Gbps 4.8 Gbps 4.8 Gbps
Memory Bandwidth 240 GB/s 240 GB/s 153.6 GB/s 153.6 GB/s

The Sapphire HD7950 Flex receives a core clock boost by 60mhz from 800mhz to 860mhz. The 3GB of GDDR5 runs at the reference speeds of 1,250mhz, or 5Gbps effective. Let us take a closer look at the hardware.

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