AMD Radeon HD 5830 Graphics Card Review - 5870 Eyefinity Edition too!
AMD fills another price segment while NVIDIA waits
How do enthusiasts love the AMD GPU team these days? Let us count the ways:
- ATI Radeon HD 5870
1GB Graphics Card and AMD Eyefinity Review
- AMD Radeon HD 5850
1GB Review - Cyprus gets a bit cheaper
- AMD Radeon HD 5770
and HD 5750 Review - Juniper and DX11 for all
- AMD Radeon HD 5970
2GB Review - AMDomination
- AMD Radeon HD 5670
Review - DX11 breaches the $100 mark
- AMD Radeon HD 5570
and 5450 Review - DX11 HTPC Goodness
Since September 23rd, 2009 AMD has released at least 8 new graphics card options for the consumer; from the initial release of the HD 5870 to the dual-GPU performance of the HD 5970 and even down the low cost HTPC and upgrade markets with the HD 5400 and HD 5500 series. Not only that but there are more cards and SKUs that have been released that we haven't even tested yet in the sub-$100 segment. And today, AMD fills another price void with another GPU offering, the Radeon HD 5830 that will sit between the HD 5850 and HD 5770 in both price, and we are told, performance.
But will it be a better option for our readers than either abutting graphics card? That has yet to be seen.
Cypress gets another member: The Radeon HD 5830
First, I need to clarify a misspelling of mine that I have apparently had since the first HD 5870 release back in September - Cypress -> Cyprus. Really, can I be faulted? Apparently it really is "Cypress" so I'll try to keep that straight from here on out.
In the world of AMD DX11-GPUs (Evergreen series) there are few different names you need to know. Cypress is the primary part, the GPU that holds up to 1600 stream processors that both the HD 5870 and HD 5850 are based on. The Juniper GPU is next and is completely different GPU spin that maxes out at 800 stream processors - about half the size and performance of the Cypress part - and is the basis of the HD 5770 and HD 5750 cards. Below that comes the Redwood GPU used in the HD 5670 and HD 5570 cards with up to 400 stream processors (half of the Juniper part) and we end with the Cedar GPU that powers the HD 5400 series of cards with at most 80 SPs.
All of that detail is give you a frame of reference for the new Radeon HD 5830 launching today that is based on the Cypress GPU but with significantly fewer stream processors enabled compared to the flagship HD 5870.
You will also see that AMD has cut back on the texture units and thus the texture fill rate drops by about the same percentage. However, look at the pixel fill rate difference here: it gets cut by more than half of the HD 5870 and in fact falls under that of the HD 5770 card that will be priced lower than the HD 5830. We are still using GDDR5 memory at the same clock rate of the HD 5850 so performance there is where we expected.
What does this mean? Essentially that while the performance of the HD 5830 should fall between the HD 5770 and HD 5850 in all cases, it will lean more towards the HD 5770 in areas that are pixel fill rate bound and more towards the HD 5850 where math computation is the bottleneck. At least in theory; we'll see in our own testing on the following pages.
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