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Written by Bruce Normann   
Thursday, 14 January 2010
Table of Contents: Page Index
ATI Radeon HD5670 HDMI Video Card
Radeon HD5670 Features
Radeon HD5670 Specifications
Closer Look: Radeon HD 5670
Radeon HD5670 Detailed Features
ATI Eyefinity Multi-Monitors
Video Card Testing Methodology
3DMark Vantage Benchmarks
Crysis Benchmark Results
Devil May Cry 4 Benchmark
Far Cry 2 Benchmarks
Resident Evil 5 Benchmarks
ATI Radeon HD5670 Temperature
VGA Power Consumption
Radeon HD5670 Final Thoughts
ATI Radeon HD5670 Conclusion

Radeon HD5670 Detailed Features

The main attraction of ATI's new line of video cards is the brand new GPU with its 40nm transistors and an improved architecture. The chip in the 5670 is called "Redwood" and is essentially half of the "Juniper", or if you like, one quarter of the "Cypress", the high-end chip that was first introduced in the HD5800 series, in September, 2009.

ATI_Radeon_HD5670_Redwood_Die_wDime.jpg

The Redwood die is very small, as can be seen with this comparison to a well known dimensional standard. ATI still managed to cram over a 600 million transistors on there, and the small size is critical to the pricing strategy that ATI is pursuing with these new releases.

The base card uses 512MB of GDDR5 memory, on a 128-bit bus with a 4.0 Gbps memory interface. This combination offers a maximum memory bandwidth of up to 64 GB/sec. There will also be 1GB versions of the card available, at a slight price premium. Memory prices are going through the roof these days, so it's not surprising that ATI is offering a choice here. When they cut the Juniper GPU in half, they kept the memory bus at 128-bit, so don't expect memory to be a bottleneck on this card. There may not be much room for memory overclocking, via the Overdrive tool distributed by AMD, but with only half the shader processors running point, it's not a capability that likely to be missed.

ATI_Radeon_HD5670_Memory_Chips.jpg

The H5GQ1H24MFR-TOC DRAM chip from Hynix is in the same family as the GDDR5 memory used in the HD57xx and HD58xx series video cards. It's in the lower tier, and only rated for 4.0 Gbps, which is a downgrade from the HD57xx series, which used a 5.0 Gbps version. An overclock to the 1250-1300 MHz range is going to be tougher with these chips, even if you increase the memory voltage. To be fair to ATI, this card is NOT meant for tweakers, it's meant to be an easy plug-and-play unit for people currently stuck with low end OEM or IGP graphics. As such, they are fully justified in optimizing the memory performance/price ratio to offer the best value to the intended customer.

ATI_Radeon_HD5670_ATI_Radeon_HD5770_Memory_Table.jpg

The power section provides 2-phase power to the GPU based on the uP6201 controller; a very simple arrangement compared to the 58xx series, and more like what was used on the HD5750. The combination of a very low power GPU and low power GDDR5 memory means that a smart power supply design isn't really warranted in this situation. Even with the simple power scheme, they have achieved an incredibly low power consumption of 14W at idle and 61W under stress.

ATI_Radeon_HD5670_Power_Controller.jpg

The assembly quality on the PCB was not the best I've seen, but I had engineering samples to look at. Before we dive into the testing portion of the review, let's look at one of the most exciting new features available on every Radeon HD5xxx series product, Eyefinity.



 

Comments 

 
# awesome card!Awesome man 2010-03-04 11:25
Best card i have ever used!
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# which company's 5670 did you buy?Don 2010-03-24 07:00
Which company's 5670 did you buy Aus or XFX?
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# HIS 5670Bill 2010-04-05 11:32
I bought a HIS 5670 early march. It gave me horrifying crashes during playing games. I played BF2:BC2 and Dirt 2, both at 1680x1050 with high settings.

Although the games played well, the crashes couldn't be tolerated and so I returned the card. I am thinking of buying it again as the new drivers seem to fix the problem as I read on many forums.

If the new 10.3 drivers did in fact fix the problems, please confirm someone with this experience.

Bill
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# HD5670Ian Ray Betron 2010-05-01 03:40
Yep, ATI Catalyst 10.4 stabilized everything (on my XFX 5670). Very nice card for its class.
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# Price/=/performanceBanzai 2010-05-19 07:07
Overall it's a great card for people on a tight budget, smaller cases such as prebuilts and slim builds, and those who have a psu under 300-400w or can't connect via pci-e. This card is a great substitution for those who originally wanted a 4650/70, or even a 9800/4850 as it competes with them. Price wise, you get the performance of a 4850 card without the need for a 6-pin, a med size case, or an extremely powerful cpu (anything less than a dual core at 2.4GHz will bottleneck it). The main gains over a 4850, is that you get a dx11 card for nearly 20$ less, supports eyefinity(although it costs to make this card use three screens) and has DDR5. So if you wanted a 4850/lesser or a 9800gt/lesser than this card is the better option.
Sadly Radeon has been upping their prices, although their still lower than Nvidia cards. Although you get a 10fps performance over a 4670, the near 20-30$ increase on a card that costs lesser to manufacture and produce isn't worth it.
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# My HD 5760 is too hotLittleBear 2010-06-22 20:06
The idle temp. is at 59oC. Do you think something is wrong with the card?
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# I.T pro.Joe 2010-07-13 00:38
update the software of the 5760...
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# Which SW?BruceBruce 2010-07-13 05:03
Do you mean the BIOS on the card or the Driver SW?
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# hit tab to see score then crashes to desktopPall 2010-07-17 22:14
238fb22844c3fe1cfcrashea.dice.RomePC.Cl2010-07-16 07:16:08553292 0x61D866 0x61D866 0xCD3A6B 0xCDA77D 0xCEDE9E 0xCEE518 0xCD43D0 0xD8C0EF 0xCD8EC0 0x13F3758 0x9089AE 0x62B8E2 0x7635166B 0x800000 0x6B3B2A49 0x6B3B90E8 0x6B3D8C16 0x6B3C0ED5 0x6D0B26FB 0x6CBE62C1 0x6CBE87E0 0xD908C1 0x508FA7 0xA6D50C 0x7635166B 0x7635166B 0x62BEB9 0x595F3B 0x76351126 0x596149 0x75980849 0x591B4E 0x591B4E 0x153BD80 0x5992A6 0x153BDA4 0xAAF058 0x14B6808 0x71F929BB 0x153BD80 0x71F98CED 0x71F92A47 0x76353677 0x76EC9D42 0x76379775 0x76379775 0x76F003DD 0x72A84B 0x76EC9D15 0x71F929E1 0x71F929E1registers: Edi 52057c10, Esi 00000000, Ebx 191019f0, Edx 00000000, Ecx 0d30b700, Eax 20f604d3 Ebp 0e92fa50, Eip 0061d866, Esp 0e92fa40
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# RE: hit tab to see score then crashes to desktopOlin Coles 2010-07-17 22:16
Is that supposed to be a crash report? Not very helpful information, and probably a game/driver bug.
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# same as abovePall 2010-07-17 22:15
I have updated my driver to 10.6 and have not found a solution
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# RE: same as aboveOlin Coles 2010-07-17 22:19
Did this start before or after the driver update? I've had many problems with 10.6, and a few issues with 10.5. I'm actually still using 10.4 for gaming.
What game is this? Is it via Steam?
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