Today we shall review two graphics cards from HIS. Only one of those — HIS 6850 Fan 1GB GDDR5 HDMI/2xDVI/DP — is actually made by the company, the other copies the reference design.

Design

HIS 6850 Fan 1GB GDDR5 HDMI/2xDVI/DP
GPU: Radeon HD 6850 (Barts) Interface: PCIe x16 GPU clock rate (ROPs/shaders): 775/775 MHz (standard) Memory clock rate, physical (effective): 1000 (4000) MHz (standard) Bus: 256-bit Stream processors: 960 TMUs: 48 (BLF/TLF/ANIS) ROPs: 32 Size: 230x100x32 mm PCB color: blue RAMDACs/TDMS: integrated into GPU Outputs: Single-link DVI-D, Dual-link DVI-I, DisplayPort, HDMI Multi-GPU mode: hardware CrossFire
HIS 6870 Fan Turbo 1GB GDDR5 HDMI/2xDVI/2xMini DP
GPU: Radeon HD 6870 (Barts) Interface: PCIe x16 GPU clock rate (ROPs/shaders): 920/920 MHz (the standard is 900 MHz) Memory clock rate, physical (effective): 1120 (4480) MHz (the standard is 1050 (4200) MHz) Bus: 256-bit Stream processors: 1120 TMUs: 56 (BLF/TLF/ANIS) ROPs: 32 Size: 270x100x32 mm PCB color: black RAMDACs/TDMS: integrated into GPU Outputs: Single-link DVI-D, Dual-link DVI-I, 2 x Mini DisplayPort, HDMI Multi-GPU mode: hardware CrossFire

Comparison with the reference design, front view
HIS 6850 Fan 1GB GDDR5 HDMI/2xDVI/DP	Reference AMD Radeon HD 6850
HIS 6870 Fan Turbo 1GB GDDR5 HDMI/2xDVI/2xMini DP	Reference AMD Radeon HD 6870

Comparison with the reference design, rear view
HIS 6850 Fan 1GB GDDR5 HDMI/2xDVI/DP	Reference AMD Radeon HD 6850
HIS 6870 Fan Turbo 1GB GDDR5 HDMI/2xDVI/2xMini DP	Reference AMD Radeon HD 6870

As stated above, HIS 6870 Fan Turbo 1GB GDDR5 HDMI/2xDVI/2xMini DP is a copy of the reference design described in detail here. But HIS 6850 Fan 1GB GDDR5 HDMI/2xDVI/DP bases on a custom layout. Memory chips remain at the same place, but power elements are relocated closer to outputs, making the graphics card a bit shorter. You can also see traces of a second supplementary power connector — there will either be a factory-overclocked modification of HD 6850 or company's custom HD 6870 will also feature this PCB.

HIS 6850 Fan 1GB GDDR5 HDMI/2xDVI/DP has one supplementary power connector, and HIS 6870 Fan Turbo 1GB GDDR5 HDMI/2xDVI/2xMini DP has two.

Maximum resolutions and frequencies:

• 240 Hz maximum refresh rate
• 2560 x 1600 @ 60Hz max. digital resolution
• 2048 x 1536 @ 85Hz max. VGA resolution

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