AMD’s Radeon HD 5770 & 5750: DirectX 11 for the Mainstream Crowd
by Ryan Smith on October 13, 2009 12:00 AM EST- Posted in
- GPUs
Far Cry 2
Far Cry 2 is another foliage-heavy game. Thankfully it’s not nearly as punishing as Crysis, and it’s possible to achieve a good framerate even with all the settings at their highest.
Update: When we first published this article, we had some anomalously high results for the 5770 at 1680 and 1920. We have found the reason for this and corrected it. This brings the 5770's scores down by 10fps or so.
Compared to Crysis: Warhead, Far Cry 2 paints a better picture for the 5770. Here it just manages to beat out our 4870, which may be slightly disappointing for those of you that are expecting a decisive victory over the 4870, but it's better than a loss like in Crysis. The GTX 260 is also neck-and-neck with our two Radeon cards here.
Far Cry 2 also paints an interesting case for the 5750 in comparison to the 4850. Far Cry 2 likes RAM, particularly on AMD cards. With the 1GB on our 5750, it doubles the terrible performance of the 4850. This is going to be the exception to the norm here though.
Finally, with the solid performance of the 5770, a 5850 buys around 40% performance improvement here.
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squeezee - Tuesday, October 13, 2009 - link
Remember that there is more to the card than just the ROP/TU/ALUs. If the other logic is intact it could give the dual 5770s a net larger ammount of cache, more resources for scheduling, rasterization, etc.Ryan Smith - Tuesday, October 13, 2009 - link
Exactly. Geometry is also a big thing; the 5800 series and 5700 series have the same geometry abilities. Unfortunately this isn't something we can really test in a meaningful manner.Torres9 - Tuesday, October 13, 2009 - link
"The 5770 is 108W at load and 18W at idle, meanwhile the 5850 is 86W at load and 16W at idle."do u mean the 5750 or is the 5850 that good?
ET - Tuesday, October 13, 2009 - link
I'm again seeing many comments of "DX11 gives me nothing". Well, you buying it gives developers one more reason to develop for it. If you stick to DX10, then it'd take more time to move to DX11. Really. Until the majority of the market moves to a new feature set (and hopefully Windows 7 will help move out of DX9), developers will only use higher end features as "special features".MadMan007 - Tuesday, October 13, 2009 - link
1 word for real DX11 rollout: consoles.ET - Thursday, October 15, 2009 - link
You're right, though not the way you think. Xbox programming is more like DX11 than DX9 or DX10, and the Xbox also has a tesselation unit (though simpler than in the DX11 parts), so moving to DX11 would make developers life easier.What users don't get is the difference between API and hardware capabilities. Even if developers limit themselves to DX9 level capabilities, for console compatibility, using DX10 or DX11 only to develop will be much easier than using both DX9 and DX10, and result in faster and less buggy code (optimising for two very different API's is hard).
xipo - Tuesday, October 13, 2009 - link
As MadMan007 says, there wont be a large adoption rate from the developers towards DX11 until the NEXT generation of consoles ships (around 2012) supporting DX11... Win7 won't matter because game developers are still going to make games for DX9-DX11... Probably the very few game that will come out being DX11 only are going to be some kind of tech demos & suck 4ss!ET - Tuesday, October 13, 2009 - link
I haven't seen it stated, but I'd like to know if the 4850 benchmarked is 512MB or 1GB. If it's 512MB then the comparison with the 5750 isn't valid.poohbear - Tuesday, October 13, 2009 - link
u never mentioned that the performance of the 5770 might be a driver issue? the hardware is certainly capable of outdoing the 4870 as we can see in Farcry2, so maybe its just a driver issue?Ryan Smith - Tuesday, October 13, 2009 - link
I don't believe it's a driver issue. If anything it's a Far Cry 2-specific issue, but that's something I'm going to have to do some more digging for.