• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Ivy Bridge PCI-Express Scaling with HD 7970 and GTX 680

Joined
Oct 26, 2011
Messages
430 (0.11/day)
Processor Intel i9-9900k @ 5GHz
Motherboard Gigabyte Z390 Aorus Pro Wifi
Cooling ThermalTake Riing 240
Memory 2x8GB G-Skill 3600 CL19 @ 16-19-19-20
Video Card(s) Zotac RTX 2060 Amp!
Storage 2x Samsung 860 Evo 512GB, 4x Seagate 8TB
Display(s) 2x Dell U2713H
Case CoolerMaster M500P
Power Supply ThermalTake Toughpower 730W
Software Windows 10 Pro
Some folks over at xtremesystems actually did a similar scaling test, but with all sorts of configs all the way up to quad sli/cfx. It seems once you go multi-card, bandwidth is VERY important.

Here's their result for 680SLI at 2.0 x16/x16 vs 3.0 x16/x16



I'll post their link up once I get a chance to quickly rummage through my bookmarks when I get home from work.
 
Joined
Feb 26, 2007
Messages
850 (0.15/day)
Location
USA
Thanks W1zz as always great review.

Cant wait to see the multi card/gpu tests.... if amd ever releases that 7990....
 

plundra

New Member
Joined
May 18, 2012
Messages
1 (0.00/day)
Nice test, although I have a suggestion!

For future tests, it would be very nice if x1 (2.0, maybe 1.1) were tested too!
That way the results would be useful for eGPU-configurations in laptops, where you use the ExpressCard-slot as connection. Where only 1 lane is available.

Haven't checked if new Ivy Bridge laptops have 3.0 in the expresscard slot, if that's the case it should be on par with x4 1.1 from this test I suppose.
Although I'm on a Sandy Bridge with 2.0 only so wouldn't help that much :)

(I'm really looking for some benchmarks to push me over the edge and purchase a ViDock with some sort of modern graphics card. Interesting to see the Radeon scaling better than Nvidia!)
 

Nite_Owl

New Member
Joined
Mar 24, 2015
Messages
1 (0.00/day)
This is one fantastic article!

Thank you very much for information that is still relevant almost three years later!
 

Mussels

Freshwater Moderator
Staff member
Joined
Oct 6, 2004
Messages
54,401 (8.35/day)
Location
Oystralia
System Name Rainbow Sparkles (Power efficient, <350W gaming load)
Processor Ryzen R7 5800X (PBO tweaked, 4.4-5.05GHz)
Motherboard Asus x570 Gaming-F
Cooling EK Quantum Velocity AM4 + EK Quantum ARGB 3090 w/ active backplate. Dual rad.
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3800 C18-22-22-22-42 TRFC704 (1.4V, SoC 1.15V Hynix MJR)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1500Mhz 0.737v | 1600Mhz 0.75v | 1900Mhz 0.9v
Storage 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + WD AN1500 1TB + 1TB Intel 6000P NVME USB 3.2
Display(s) Kogan 32" 4K 72Hz +Gigabyte G32QC (1440p 165Hz) + Phillips 328m6fjrmb (1440p 144Hz)
Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE (custom white and steel keycaps)
VR HMD Oculus Rift S
Software Windows 11 pro x64 (Yes, it's genuinely a good OS)
Benchmark Scores I don't quite know how i managed to get such a top tier PC, I am not rich.
Nice test, although I have a suggestion!

For future tests, it would be very nice if x1 (2.0, maybe 1.1) were tested too!
That way the results would be useful for eGPU-configurations in laptops, where you use the ExpressCard-slot as connection. Where only 1 lane is available.

Haven't checked if new Ivy Bridge laptops have 3.0 in the expresscard slot, if that's the case it should be on par with x4 1.1 from this test I suppose.
Although I'm on a Sandy Bridge with 2.0 only so wouldn't help that much :)

(I'm really looking for some benchmarks to push me over the edge and purchase a ViDock with some sort of modern graphics card. Interesting to see the Radeon scaling better than Nvidia!)

you can generally do some basic math and figure out where performance would be, there may be individual variance but most of it will be broadly applicable.
 

Aquinus

Resident Wat-man
Joined
Jan 28, 2012
Messages
12,731 (3.31/day)
Location
Concord, NH
System Name Apollo
Processor Intel Core i9 9880H
Motherboard Some proprietary Apple thing.
Memory 64GB DDR4-2667
Video Card(s) AMD Radeon Pro 5600M, 8GB HBM2
Storage 1TB Apple NVMe, 4TB External
Display(s) Laptop @ 3072x1920 + 2x LG 5k Ultrafine TB3 displays
Case MacBook Pro (16", 2019)
Audio Device(s) AirPods Pro, Sennheiser HD 380s w/ FIIO Alpen 2, or Logitech 2.1 Speakers
Power Supply 96w Power Adapter
Mouse Logitech MX Master 3
Keyboard Logitech G915, GL Clicky
Software MacOS 12.1
Top