• We've upgraded our forums. Please post any issues/requests in this thread.

Radeon HD 7950 Overclocked to HD 7970 Clock Speed, Tested

btarunr

Editor & Senior Moderator
Staff member
Joined
Oct 9, 2007
Messages
34,320 (9.23/day)
Likes
17,423
Location
Hyderabad, India
System Name Long shelf-life potato
Processor Intel Core i7-4770K
Motherboard ASUS Z97-A
Cooling Xigmatek Aegir CPU Cooler
Memory 16GB Kingston HyperX Beast DDR3-1866
Video Card(s) 2x GeForce GTX 970 SLI
Storage ADATA SU800 512GB
Display(s) Samsung U28D590D 28-inch 4K
Case Cooler Master CM690 Window
Audio Device(s) Creative Sound Blaster Recon3D PCIe
Power Supply Corsair HX850W
Mouse Razer Abyssus 2014
Keyboard Microsoft Sidewinder X4
Software Windows 10 Pro Creators Update
#1
In its latest round of pre-launch testing of the Radeon HD 7950, DonanimHaber overclocked the GPU to match the clock speeds of the HD 7970, that's 925 MHz core, 1375 MHz (5.50 GHz effective) memory, from its reference clock speed of 800 MHz core, 1250 MHz (5.00 GHz effective), and pitted it against a Radeon HD 7970 reference and GeForce GTX 580 reference. Tests included 3DMark 11 Extreme Preset, and 3DMark Vantage Performance. At the outset these figures establish the HD 7950 to be faster than GTX 580 in the two tests. When overclocked to match the clock speeds of the HD 7970, the HD 7950 on average is 4% slower than it. In related news, DonanimHaber reports that AMD could also be working on affordable variants of the HD 7950 that come with 1536 MB of memory, on the same 384-bit GDDR5 memory interface. That would probably depend on how NVIDIA's lineup stacks up against it.

Show full news post
 
Joined
Aug 19, 2011
Messages
509 (0.22/day)
Likes
165
System Name NZXT 980 Z
Processor 3570K
Motherboard AsRock Z77 O/C Formula
Cooling Custom Liquid
Memory 2133MHz Mushkin Blackline 64g
Video Card(s) 2 X Asus GTX 670 full cover EK blocks
Storage 240 mushkin 2x120 samsungs
Display(s) Asus "24 144Hz
Case Switch 810
Audio Device(s) creative
Power Supply Seasonic platinum
Software w7 steam futuremark
#2
not that this wasnt expected.....smart move by amd
 
Joined
Dec 16, 2011
Messages
87 (0.04/day)
Likes
26
Location
Glossop, UK
System Name Wolf Command
Processor 6700K
Motherboard EVGA Z170 FTW
Cooling EK Custom GPU block + Corsair H60
Memory 16Gb DDR4 3000 Corsair Vengence
Video Card(s) Sapphire Fury X Custome WC
Storage 1x Samsung M.2 128Gb, 1x Intel 256Gb M.2 1x Seagate 500Gb Hybrid
Display(s) Dell 2417H
Case S340
Audio Device(s) OB
Power Supply EVGA 750W
Software Windows 10
#3
If they are getting low yields of full 7970 cores expect a whole range of different lower spec cores.
 
Joined
Nov 13, 2007
Messages
6,139 (1.67/day)
Likes
1,633
Location
Austin Texas
System Name silen8
Processor Intel i7 7820X Delidded @ 4.64Ghz / 3.1Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 240mm Corsair H105 Intake
Memory 32 GB Quad 3434Mhz DDR4 15-16-16-38-300-1T
Video Card(s) Gigabyte GTX 1080 Ti Gaming
Storage 1Tb Samsung 960 Pro m2, 1TB Samsung 850 Pro SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case NZXT S340 Elite Black
Audio Device(s) Arctis 7
Power Supply FSP HydroG 750W
Mouse zowie ec-2
Keyboard corsair k65 tenkeyless
Software Windows 10 64 Bit
Benchmark Scores Cb: 2103 Multi, 209 Single, 10450 Timespy - 10150 GPU/11900 CPU, superpi 1M - 7.71s
#4
Those scores are heavily influenced by CPU - that 4% is skewed. If you look at just the graphics score, no doubt the gap is higher.
 

FreedomEclipse

~Technological Technocrat~
Joined
Apr 20, 2007
Messages
17,139 (4.41/day)
Likes
5,279
Location
London,UK
System Name Codename: Rapture X Mk.VI {Still....MoonPig Edition}
Processor Intel 3930k@4.5Ghz
Motherboard Asus P9X79 PRO
Cooling Corsair H105 {2x Corsair ML 120 Pro}|VRM: Antec Spotcool 100
Memory 32GB DDR3 Kingston HyperX Beast 2400Mhz {8x4GB}
Video Card(s) MSI 1070 Gaming X (Samsung)
Storage 512GB Samsung 850 Pro (Boot)|1x 512GB Crucial MX100|2x 3TB Toshiba DT01ACA300
Display(s) Asus PB278Q 27"
Case Corsair 760T (White) {1x140mm NB PK-3, 2x Corsair AF140}
Audio Device(s) Creative SB Z {Speakers: Logitech Z-5500 }
Power Supply Corsair AX760
Mouse Logitech G900 Chaos Spectrum
Keyboard Duckyshine Dead LED(s) III
Software Windows 7 7600 x64
Benchmark Scores ( ͡°( ͡° ͜ʖ( ͡° ͜ʖ ͡°)ʖ ͡°) ͡°)
#5
now the only thing we need to know is if it can be flashed to a 7970 :p
 
Joined
Apr 10, 2010
Messages
1,675 (0.60/day)
Likes
298
Location
London
System Name Jaspe
Processor i7 3820 4.4Ghz
Motherboard BIOSTAR TPower X79
Cooling Thermalright Archon Rev. A
Memory 16Gb G.Skill Ripjaws 1866mhz
Video Card(s) AMD 290X
Storage Crucial M500 WD 600Gb Velociraptor
Display(s) AOC Q2778VQE
Case In Win GRone
Audio Device(s) Onboard
Power Supply Antec Signature 650
Software Windows 10 Home
#6
How did the 6950 compare to the 6970 when overclocked to the 6970 speeds?
 
Joined
Oct 26, 2011
Messages
3,121 (1.39/day)
Likes
892
Processor Ci7 5960X
Motherboard RVE
Cooling Triple Aquacomputer AMS 840 with D5
Memory Some random DDR4
Video Card(s) GTX 1080 Ti
Storage 960 EVO
Display(s) Dell U3011 2560x1600 + Dell 2408WFP 1200x1920 (Portrait)
Case Dimastech Bench EasyXL
Audio Device(s) Essence STX
Power Supply AX 1500i
Software Win10
#7
How did the 6950 compare to the 6970 when overclocked to the 6970 speeds?
The shaders made up to ~3% of difference if the cards are confronted clock for clock.
The huge gains are made with overclocking
 
Joined
Aug 13, 2010
Messages
3,111 (1.16/day)
Likes
1,552
System Name The "Oh shit we have competition"
Processor Core i7 8700K @ 4.8Ghz
Motherboard Gigabyte Z370 Ultra Gaming
Cooling Custom WC & 240MM Rad
Memory G.Skill Ripjaws 4 DDR4 2666Mhz 16GB
Video Card(s) Palit Jetstream GTX 1080 OC 8GB
Storage 5TB HDDs + 1TB SSDs
Display(s) U2713HM + 2433T + XL2430T 144Hz
Case Corsair Carbide Air 540
Power Supply Antec Edge 750W
Mouse The almighty Logitech G400
Keyboard Cougar 600K Cherry-MX Blue
Software Windows 10 Pro
#8
If the reference HD7950 will reach the 1.275-1.3Ghz clocks it would defo be a HD7970 killer in $\P
 
Joined
Nov 13, 2007
Messages
6,139 (1.67/day)
Likes
1,633
Location
Austin Texas
System Name silen8
Processor Intel i7 7820X Delidded @ 4.64Ghz / 3.1Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 240mm Corsair H105 Intake
Memory 32 GB Quad 3434Mhz DDR4 15-16-16-38-300-1T
Video Card(s) Gigabyte GTX 1080 Ti Gaming
Storage 1Tb Samsung 960 Pro m2, 1TB Samsung 850 Pro SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case NZXT S340 Elite Black
Audio Device(s) Arctis 7
Power Supply FSP HydroG 750W
Mouse zowie ec-2
Keyboard corsair k65 tenkeyless
Software Windows 10 64 Bit
Benchmark Scores Cb: 2103 Multi, 209 Single, 10450 Timespy - 10150 GPU/11900 CPU, superpi 1M - 7.71s
#9
That is if they don't price it at $450 like they are going to :/
 
Joined
Jan 28, 2009
Messages
1,734 (0.54/day)
Likes
455
Location
on top of that big mountain on mars(Romania)
System Name ( . Y . )
#10
Those scores are heavily influenced by CPU - that 4% is skewed. If you look at just the graphics score, no doubt the gap is higher.
in the earlier pics in gpu scores in 3d11 at stock speeds the gap i've seen is ~23-24%... that big.
This is castrated more than in the case of 6950 vs 6970.
 
Joined
Dec 1, 2006
Messages
448 (0.11/day)
Likes
39
#11
So why do we need to overclock? Ain't that GPU already super duper fast for all our console ports? Me remains skeptical again! That HD7000 price is so Nvidish, but performance is not overwhelming. Let's see what GK-104 can do.
 
Joined
Nov 13, 2007
Messages
6,139 (1.67/day)
Likes
1,633
Location
Austin Texas
System Name silen8
Processor Intel i7 7820X Delidded @ 4.64Ghz / 3.1Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 240mm Corsair H105 Intake
Memory 32 GB Quad 3434Mhz DDR4 15-16-16-38-300-1T
Video Card(s) Gigabyte GTX 1080 Ti Gaming
Storage 1Tb Samsung 960 Pro m2, 1TB Samsung 850 Pro SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case NZXT S340 Elite Black
Audio Device(s) Arctis 7
Power Supply FSP HydroG 750W
Mouse zowie ec-2
Keyboard corsair k65 tenkeyless
Software Windows 10 64 Bit
Benchmark Scores Cb: 2103 Multi, 209 Single, 10450 Timespy - 10150 GPU/11900 CPU, superpi 1M - 7.71s
#12
^^ +1... perf/$ is horrible for a new generation since its "on-par" with the old generation. The Perf/$ hasnt changed from what it was when the 580 first came out.

What an underwhelming series of cards.
 
Joined
Oct 26, 2011
Messages
3,121 (1.39/day)
Likes
892
Processor Ci7 5960X
Motherboard RVE
Cooling Triple Aquacomputer AMS 840 with D5
Memory Some random DDR4
Video Card(s) GTX 1080 Ti
Storage 960 EVO
Display(s) Dell U3011 2560x1600 + Dell 2408WFP 1200x1920 (Portrait)
Case Dimastech Bench EasyXL
Audio Device(s) Essence STX
Power Supply AX 1500i
Software Win10
#13
If you take stock performance I agree that is not anything stellar but if you count in the overclock then the thing begins to yield massive performance compared to anything else.
I still don't understand why people complain about performance when these things are beasts when overclocked and don't tell me you are going to run stock -.-
 
Joined
Oct 13, 2007
Messages
7,693 (2.07/day)
Likes
1,772
Location
Chicago
System Name DarkStar
Processor i5 3570K 4.4Ghz
Motherboard Asrock Z77 Extreme 3
Cooling Apogee HD White/XSPC Razer blocks
Memory 8GB Samsung Green 1600
Video Card(s) 2 x GTX 670 4GB
Storage 2 x 120GB Samsung 830
Display(s) 27" QNIX
Case Enthoo Pro
Power Supply Seasonic Platinum 760
Mouse Steelseries Sensei
Keyboard Ducky Pro MX Black
Software Windows 8.1 x64
#14
I know not this "stock" of which you speak.
 
Joined
Nov 13, 2007
Messages
6,139 (1.67/day)
Likes
1,633
Location
Austin Texas
System Name silen8
Processor Intel i7 7820X Delidded @ 4.64Ghz / 3.1Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 240mm Corsair H105 Intake
Memory 32 GB Quad 3434Mhz DDR4 15-16-16-38-300-1T
Video Card(s) Gigabyte GTX 1080 Ti Gaming
Storage 1Tb Samsung 960 Pro m2, 1TB Samsung 850 Pro SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case NZXT S340 Elite Black
Audio Device(s) Arctis 7
Power Supply FSP HydroG 750W
Mouse zowie ec-2
Keyboard corsair k65 tenkeyless
Software Windows 10 64 Bit
Benchmark Scores Cb: 2103 Multi, 209 Single, 10450 Timespy - 10150 GPU/11900 CPU, superpi 1M - 7.71s
#15
If you take stock performance I agree that is not anything stellar but if you count in the overclock then the thing begins to yield massive performance compared to anything else.
I still don't understand why people complain about performance when these things are beasts when overclocked and don't tell me you are going to run stock -.-

The 580 OCs great too - and actually around the same % amount. It is not uncommon to see 920Mhz over-clocks on 580s - that is why overclocking is mostly moot. Even if the 580 OC's 20% and the 7970 25%, that 5% doesnt change this fact:

When the 580 came out November 2010 it was priced at $499... it offered 75%-80% of the performance of the current 7970 that came out a few weeks ago at $550. The $ to performace vs over a year ago has not changed nearly enough. Not to mention, the price of the 580 dropped to $450 - so that makes it even less worth it.

When the 5870 1GB came out in 2009 (for instance)... under $400 with the ability to murder the $380 285 and AND overclock - that was a monster release and is still a very fast card, on par with the 6950 1GB. This was an exciting card - because the technology increased so much at the same price point.

The 7970 offers the performance jump (when OC'd mostly), but counters it with a jump in price that makes it worth the exact same as a card that came out a year ago. It would be the same thing if Nvidia now released kepler that is twice as fast as the 7970, and charged $1,100 for it.
 
Last edited:
Joined
Nov 23, 2010
Messages
268 (0.10/day)
Likes
14
#16
That is if they don't price it at $450 like they are going to :/
There is apparently $100~$150 price difference from 7970 to 7950 and AMD prices for 7970 is around $450, this is not retail prices or hyped up demand prices some retailers have.

So 7950 should be $300 about + retailer mark up close to $50 or something like this.
Keep in mind you need to find out what the CrystalMeth prices would end up being
or (price + retailer + local tax + fed tax + shipping + some bogus something prices + possible 2x times RMA to retailer cost + cost of time spend on funky driver issues).

+1 AMD gpu division on the 7950.
 
Joined
Apr 19, 2011
Messages
1,724 (0.71/day)
Likes
203
Location
So. Cal.
#17
^^ +1... perf/$ is horrible for a new generation since its "on-par" with the old generation. The Perf/$ hasnt changed from what it was when the 580 first came out.

What an underwhelming series of cards.
I guess we wait and see what Nvidia got/gets as 28Nm pricing from TSMC. That's the factor your not considering, the price increase they both get on this shrink.
 
Joined
Nov 13, 2007
Messages
6,139 (1.67/day)
Likes
1,633
Location
Austin Texas
System Name silen8
Processor Intel i7 7820X Delidded @ 4.64Ghz / 3.1Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 240mm Corsair H105 Intake
Memory 32 GB Quad 3434Mhz DDR4 15-16-16-38-300-1T
Video Card(s) Gigabyte GTX 1080 Ti Gaming
Storage 1Tb Samsung 960 Pro m2, 1TB Samsung 850 Pro SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case NZXT S340 Elite Black
Audio Device(s) Arctis 7
Power Supply FSP HydroG 750W
Mouse zowie ec-2
Keyboard corsair k65 tenkeyless
Software Windows 10 64 Bit
Benchmark Scores Cb: 2103 Multi, 209 Single, 10450 Timespy - 10150 GPU/11900 CPU, superpi 1M - 7.71s
#18
There is apparently $100~$150 price difference from 7970 to 7950 and AMD prices for 7970 is around $450, this is not retail prices or hyped up demand prices some retailers have.

So 7950 should be $300 about + retailer mark up close to $50 or something like this.
Keep in mind you need to find out what the CrystalMeth prices would end up being
or (price + retailer + local tax + fed tax + shipping + some bogus something prices + possible 2x times RMA to retailer cost + cost of time spend on funky driver issues).

+1 AMD gpu division on the 7950.
well the first 7950 is etailer is out at $480, so ~$450-$425 is not too far off from what we could expect. At the end of the day, it don't matter if they charge $30 to the retailer - if it can only get to me at $450 at the end of the supply chain, then its a $450 card.

@ Casecutter - true - but IF their midrange card is competive with the 7970, which is not terribly out of this world, I highly doubt it will come out at $450 or $550 - since those are not "midrange" prices. One never knows though and you have a good point.
 
Last edited:
Joined
Aug 7, 2007
Messages
2,652 (0.70/day)
Likes
766
Processor Intel i5-2500k @ 3.8GHz
Motherboard ASRock Z68 Extreme4 Gen3
Cooling CM Hyper 212 EVO w/ AC MX-2
Memory 8GB DDR3 1866 Gskill Snipers 9-10-9-28
Video Card(s) MSI GTX 1060 Gaming X
Storage 240GB Corsair Force GT
Display(s) 23' Dell AW2310
Case Corsair 550D
Audio Device(s) Creative SB X-Fi Fatality Professional
Power Supply Seasonic SS-760XP2 Platinum
Software Windows 7 Pro 64-bit
#20
How about an overclocked 580 vs overclocked 7950 vs overclocked 7970? Then that would put some heads to rest in relation to how big the gap will become when they ALL get pushed to their breaking points (maximum air cooling, nothing too exotic). Then the price/performance will be known to us enthusiasts, I could care less about stock clocks. Kepler is a whole other ball game, as we do not know much about it, specs or pricewise...so we will have to wait for that battle to come.
 
Joined
Aug 13, 2010
Messages
3,111 (1.16/day)
Likes
1,552
System Name The "Oh shit we have competition"
Processor Core i7 8700K @ 4.8Ghz
Motherboard Gigabyte Z370 Ultra Gaming
Cooling Custom WC & 240MM Rad
Memory G.Skill Ripjaws 4 DDR4 2666Mhz 16GB
Video Card(s) Palit Jetstream GTX 1080 OC 8GB
Storage 5TB HDDs + 1TB SSDs
Display(s) U2713HM + 2433T + XL2430T 144Hz
Case Corsair Carbide Air 540
Power Supply Antec Edge 750W
Mouse The almighty Logitech G400
Keyboard Cougar 600K Cherry-MX Blue
Software Windows 10 Pro
#21
You can be absolutely sure that the HD7950 Overclocks well and without voltage changes will probably reach the GTX580's maxoc speeds
 

Duckula

New Member
Joined
Nov 5, 2010
Messages
37 (0.01/day)
Likes
13
#22
Someone over at Chiphell somehow managed to lay his hands on a Sapphire non-reference design HD7950 video card and he did some benchmark:

platform:

CPU: Intel i7 2600K @4.5GHZ
mobo: ASUS Maximus IV Extreme
GPU: HD7950
RAM: 2X4GB 1600HMZ
HDD: Crucial C300 128GB

Test result:
3Dmark Vantage (at stock frequency):
Total: P6893, GPU: 6510

3Dmark Vantage (overclocked to 925/1350MHz):
Total: P7595, GPU: 7267

http://tieba.baidu.com/p/1390885451?pn=1

http://www.chiphell.com/thread-350613-1-1.html
 

Attachments

Last edited:
Joined
Mar 23, 2005
Messages
2,995 (0.64/day)
Likes
609
Location
Ancient Greece, Acropolis (Time Lord)
System Name My Red Dragon Gaming PC
Processor AMD FX-8350 @ 4.40GHz w/8-Cores - Bus 277 / 1.35v
Motherboard Asus Crosshair V Formula ROG - Bios v1801
Cooling Corsair H100 Water Cooling (120mm x4 Push/Pull)
Memory G.SKILL Ripjaws X Series 16GB DDR3-2210 (8GBx2)
Video Card(s) SAPPHIRE (ATI) DUAL-X R9 280X 3GB GDDR5 OC + Sapphire Radeon RX 580 8GB Nitro+ LE
Storage Corsair Force 3 SSD 180GB + WD 32MB buffer 1TB HD
Display(s) Asus 24" (VG245H) FHD 75Hz 1ms FreeSyn - Gaming Monitor
Case CoolerMaster HAF 932 - My Custom Red Dragn MOD!
Audio Device(s) SteelSound 5Hv2 8CH HD + EAX® Advanced™ HD 5.0 -SupremeFX X-Fi 2
Power Supply Corsair 750W Gamers Power Supply
Mouse Razer DeathAdder PC Gaming Mouse - Ergonomic Left Hand Edition
Keyboard Logitech G15 Classic Gaming Keyboard
Software Windows 10 x64 Ultimate
Benchmark Scores I have the worlds Fastest PC ever Built - 1980
#23
The HD 7950 may be the best choice seeing how here in my area the HD 7970 is being sold for $670+ 13% tax. Talk about taking consumers for a ride. Rip Off...
 
Joined
Aug 13, 2010
Messages
3,111 (1.16/day)
Likes
1,552
System Name The "Oh shit we have competition"
Processor Core i7 8700K @ 4.8Ghz
Motherboard Gigabyte Z370 Ultra Gaming
Cooling Custom WC & 240MM Rad
Memory G.Skill Ripjaws 4 DDR4 2666Mhz 16GB
Video Card(s) Palit Jetstream GTX 1080 OC 8GB
Storage 5TB HDDs + 1TB SSDs
Display(s) U2713HM + 2433T + XL2430T 144Hz
Case Corsair Carbide Air 540
Power Supply Antec Edge 750W
Mouse The almighty Logitech G400
Keyboard Cougar 600K Cherry-MX Blue
Software Windows 10 Pro
#24
Sapphire's PCB is almost identical to the reference, in fact, its just a painted reference card
Sapphire is yet to come out with their UniPCB for the HD7900 witch will probably include the Atomic models
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,369 (10.18/day)
Likes
18,018
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#25
How about an overclocked 580 vs overclocked 7950 vs overclocked 7970? Then that would put some heads to rest in relation to how big the gap will become when they ALL get pushed to their breaking points (maximum air cooling, nothing too exotic). Then the price/performance will be known to us enthusiasts, I could care less about stock clocks. Kepler is a whole other ball game, as we do not know much about it, specs or pricewise...so we will have to wait for that battle to come.
Thing is, some cards overclock really well, and some don't. Stock vs. stock vs. stock and the knowledge to know what kind of overclocks are to be expected works for me. :)