An interesting slide, but this just shows tesselation performance, and it's in my opinion marketing hype at best. The people at toms hardware, especially the ones posting their ideas and speculation are comical to say the least. I've never read so much stupidity in my life. However it will be interesting to see what AMD can do. From what I understand it's a refresh/upgrade of the Cayman XT core. Higher clock frequencies, more SP's ram etc. I haven't read anything saying it's a new architecture.
I haven't run an ATI card since my 9500 pro, but competition is good for both sides as it keeps prices down. Go AMD give Nvidia a swift kick in the nuts so it keeps kepler prices reasonable...
384-bit GDDR5 at 1 GHz is 192 GB/s of memory bandwidth. A lower clock speed would mean less bandwidth. It would also make no sense at all, as AMD uses 1 GHz for even their Redwood and Barts GPU chips that have more memory bandwidth than they can make good use of. That's the lowest bin of GDDR5 memory chips available, so going slower than that makes little sense unless either it's a power limitation (as in laptops) or your GDDR5 memory controller is a disaster. And it makes no sense at all if you're so desperate for more bandwidth that you need a 384-bit memory bus.
Another set of sliders, allegedly from AMD (being reported by a different site) seem to more or less corroborate the performance claims from Tom's Hardware, though it's hard to tell exactly, since they've only given tesselation performance (not exactly a great overall measure).
At the resolution tested (2560x1600, not really a common one), the mean seems to be about 45% faster. Given the modest speed difference between the 580 and the 6970 (~15%, isn't it?), 60% - 70% faster than the 6970 is about what I'd expect.
The link includes benchmarks of Eyefinity setups with the 7970 as well. Many sites reviews are now live, this is just one that I noticed had Eyefinity sections.
The link includes benchmarks of Eyefinity setups with the 7970 as well. Many sites reviews are now live, this is just one that I noticed had Eyefinity sections.
I just read Anandtech review. It's not exponentially faster but it is faster and a good deal cooler. I have high hopes for a fast and quiet 7750 & 7850.
But you need a new gen 3 motherboard and cpu if you fully wanne enjoy this card.
PCIe Gen 3 In Q3 and Q4 of 2011 we have seen a lot of PCIe gen 3 motherboard announcements. What's that all about you ask? In a nutshell, PCI Express Gen 3 provides a 2x faster transfer rate than the previous generation, this delivers capabilities for next generation extreme gaming solutions. So opposed to the current PCI Express slots which are Gen 2, the PCI Express Gen 3 will have twice the available bandwidth and that is 32GB/s, improved efficiency and compatibility and as such it will offer better performance for current and next gen PCI Express cards. To make it even more understandable, going from PCIe Gen 2 to Gen 3 doubles the bandwidth available to the add-on cards installed, from 500MB/s per lane to 1GB/s per lane. So a Gen 3 PCI Express x16 slot is capable of offering 16GB/s (or 128Gbit/s) of bandwidth in each direction. That results in 32GB/sec bi-directional bandwidth. The big problem is that you need a symbiosis of proper compatible hardware, like a Gen 3 supporting motherboard, Gen 3 capable processor and thus a graphics card supporting the new standard. A lot of Z68 and all X79 are PCIe Gen 3 certified. However, processor wise the upcoming Ivy Bridge CPU's from Intel will support Gen 3. It is still pending whether or not Sandy Bridge-E will get Gen 3 support.
Hope to build full AMD system RYZEN/VEGA/AM4!!!
MB:Asus V De Luxe z77 CPU:Intell Icore7 3770k GPU: AMD Fury X(waiting for BIG VEGA 10 or 11 HBM2?(bit unclear now)) MEMORY:Corsair PLAT.DDR3 1866MHZ 16GB PSU:Corsair AX1200i OS:Windows 10 64bit
Comments
An interesting slide, but this just shows tesselation performance, and it's in my opinion marketing hype at best. The people at toms hardware, especially the ones posting their ideas and speculation are comical to say the least. I've never read so much stupidity in my life. However it will be interesting to see what AMD can do. From what I understand it's a refresh/upgrade of the Cayman XT core. Higher clock frequencies, more SP's ram etc. I haven't read anything saying it's a new architecture.
I haven't run an ATI card since my 9500 pro, but competition is good for both sides as it keeps prices down. Go AMD give Nvidia a swift kick in the nuts so it keeps kepler prices reasonable...
Main Rig --- i7 920 @ 3.6ghz//6GB Patriot XGS DDR3 1600@1804 mhz CAS9//HAF 932//Corsair HX1000//ASUS P6T Deluxe//2xMSI GTX570 Twin Frozr II SLI//64GB Patriot Torqx SSD// 1TB Seagate HDD
Secondary --- Macbook
I'm guessing that you pulled that from this page:
http://www.tomshardware.com/news/AMD-Radeon-HD-7000-GPU,14309.html
In that case, the claimed specs are trivially wrong. In particular:
"384-bit wide GDDR5 memory interface, memory clock slightly below 1 GHz, target bandwidth of 240~264 GB/s"
384-bit GDDR5 at 1 GHz is 192 GB/s of memory bandwidth. A lower clock speed would mean less bandwidth. It would also make no sense at all, as AMD uses 1 GHz for even their Redwood and Barts GPU chips that have more memory bandwidth than they can make good use of. That's the lowest bin of GDDR5 memory chips available, so going slower than that makes little sense unless either it's a power limitation (as in laptops) or your GDDR5 memory controller is a disaster. And it makes no sense at all if you're so desperate for more bandwidth that you need a 384-bit memory bus.
Another set of sliders, allegedly from AMD (being reported by a different site) seem to more or less corroborate the performance claims from Tom's Hardware, though it's hard to tell exactly, since they've only given tesselation performance (not exactly a great overall measure).
http://www.fudzilla.com/graphics/item/25278-hd-7970-up-to-60-percent-faster-than-gtx-580
At the resolution tested (2560x1600, not really a common one), the mean seems to be about 45% faster. Given the modest speed difference between the 580 and the 6970 (~15%, isn't it?), 60% - 70% faster than the 6970 is about what I'd expect.
http://videocardz.com/29950/amd-radeon-hd-7970-benchmarks-gaming-performance
They seem to really be showing cases where the 580 will stumble based on its 1.5GB of memory, such as multiple 30" monitor situations.
That said, some of it was pretty impressive to me.
http://www.hardocp.com/article/2011/12/22/amd_radeon_hd_7970_video_card_review/
The link includes benchmarks of Eyefinity setups with the 7970 as well. Many sites reviews are now live, this is just one that I noticed had Eyefinity sections.
I just read Anandtech review. It's not exponentially faster but it is faster and a good deal cooler. I have high hopes for a fast and quiet 7750 & 7850.
If you have a 6970 there is no need for this card if you play games. But its nice that AMD brings again first 28nano on the market.
http://www.anandtech.com/show/5261/amd-radeon-hd-7970-review
http://www.guru3d.com/article/amd-radeon-hd-7970-review/
But you need a new gen 3 motherboard and cpu if you fully wanne enjoy this card.
Hope to build full AMD system RYZEN/VEGA/AM4!!!
MB:Asus V De Luxe z77
CPU:Intell Icore7 3770k
GPU: AMD Fury X(waiting for BIG VEGA 10 or 11 HBM2?(bit unclear now))
MEMORY:Corsair PLAT.DDR3 1866MHZ 16GB
PSU:Corsair AX1200i
OS:Windows 10 64bit