iXBT Labs - ASUS EAH5850 TOP, Gigabyte GV-R575SL-1GI, MSI R5770 HAWK Graphics Cards

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Today we'll review three graphics cards with ATI Radeon GPUs. The reason for the selection is simple: all three simply happened to be in our lab at the same time. All three cards have custom design and original coolers, so reviewing them promises to be interesting.

Card design

ASUS EAH5850 TOP
GPU: Radeon HD 5850 (Cypress) Interface: PCIe x16 GPU clock rate (ROPs/Shaders): 765/765 MHz (the standard is 725/725 MHz) Memory clock rate, physical (effective): 1125 (4500) MHz (the standard is 1000 (4000) MHz) Bus width: 256-bit Stream processors: 1440 TMUs: 72 (BLF/TLF) ROPs: 32 Size: 270x100x33mm PCB color: black RAMDACs/TDMS: integrated into GPU Outputs: DVI (Dual-Link/HDMI), Display Port, HDMI Multi-GPU: CrossFire (Hardware)
Gigabyte GV-R575SL-1GI
GPU: Radeon HD 5750 (Juniper) Interface: PCIe x16 GPU clock rate (ROPs/Shaders): 700/700 MHz (standard) Memory clock rate, physical (effective): 1150 (4600) MHz (standard) Bus width: 128-bit Stream processors: 720 TMUs: 36 (BLF/TLF) ROPs: 16 Size: 210x100x33mm PCB color: blue RAMDACs/TDMS: integrated into GPU Outputs: 2 x DVI (Dual-Link/HDMI), VGA, HDMI Multi-GPU: CrossFire (Hardware)
MSI R5770 HAWK
GPU: Radeon HD 5770 (Juniper) Interface: PCIe x16 GPU clock rate (ROPs/Shaders): 875/875 MHz (the standard is 850/850 MHz) Memory clock rate, physical (effective): 1200 (4800) MHz (standard) Bus width: 128-bit Stream processors: 800 TMUs: 40 (BLF/TLF) ROPs: 16 Size: 220xx100x33mm PCB color: black RAMDACs/TDMS: integrated into GPU Outputs: DVI (Dual-Link/HDMI), Display Port, HDMI Multi-GPU: CrossFire (Hardware).

MSI R5770 HAWK, Gigabyte GV-R575SL-1GI
1024MB GDDR5 SDRAM in 8 Samsung chips on both sides of the PCB. The memory chips are designed for the peak clock rate of 1250 (5000) MHz.
ASUS EAH5850 TOP
1024MB GDDR5 SDRAM in 8 Samsung chips on the front side of the PCB. The memory chips are designed for the peak clock rate of 1250 (5000) MHz.

Comparison with the reference design, front view
ASUS EAH5850 TOP	Reference ATI Radeon HD 5850

Gigabyte GV-R575SL-1GI	Reference ATI Radeon HD 5750

MSI R5770 HAWK	Reference ATI Radeon HD 5770

Comparison with the reference design, rear view
ASUS EAH5850 TOP	Reference ATI Radeon HD 5850

Gigabyte GV-R575SL-1GI	Reference ATI Radeon HD 5750

MSI R5770 HAWK	Reference ATI Radeon HD 5770

As stated above, all three cards have custom design, but it's still based on the reference.

All graphics cards have supplemental power connectors. Note that ASUS EAH5850 TOP has two, one of which is 8-pin (should improve stability when overclocked).

Maximum resolutions and frequencies:

240 Hz maximum refresh rate
2048 x 1536 x 32bit @ 85Hz Max -- analog interface
2560 x 1600 @ 60Hz Max -- digital interface (Dual-Link DVI/HDMI)

As for the HDTV support, a review is available here.

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ASUS EAH5850 TOP, Gigabyte GV-R575SL-1GI, MSI R5770 HAWK Graphics Cards

Quite an interesting trio.

Card design