AMD Radeon HD 7970 GHz Edition Overclocking Roundup

Published: June 23rd, 2012 | Comments

AMD Radeon HD 7970 GHz Edition Overclocking Roundup
Yesterday, a GPU industry has warmly welcomed a refreshed Tahiti XT2 chip with Radeon HD 7970 GHz Edition launch. Supposedly, card was to offer better overclocking potential, through better stability at higher voltages and therefore, allowing to set increased clocks. So did the company managed to fill the gap to GTX 680’s performance?

Most of the reviews are very positive about this card. The GHz Edition is offering similar performance to GeForce GTX 680, only with slightly higher power consumption. AMD has also implemented a new feature called Boost, which is basically the auto-scaled GPU clock. It’s worth mentioning that it’s not very useful feature, for instance, at a default clock set to 1200 MHz, Boost remains at 1050 MHz. So there is not much room for Boost to be manually manipulated (while it depends on TDP and GPU usage).

Before I present to you how did Radeon HD 7970 GHz perform in comparison to half-year old original Radeon HD 7970, take a look at the specs.

Radeon HD 7970 GHz Edition Specification

 

AMD Radeon HD 7970AMD Radeon HD 7970 “GHz Edition”nVidia GeForce GTX 680
GPU28nm Tahiti XT228 Tahiti XT28 Kepler GK104
Transistors Count4.3 billion4.3 billion3.54 billion
Die Size365mm²365mm²294mm²
Stream (CUDA) Processors204820481536
Texture Mapping Units128128128
Raster Operating Units323232
Core Clock925 MHz1000 MHz1006 MHz
Boost ClockNA1050 MHz1058 MHz
Memory Clock1375 MHz1500 MHz1508 MHz
Memory Type3072 MB GDDR53072 MB GDDR52048 MB GDDR5
Memory Interface384-bit384-bit256-bit
PCI Express1.x/2.0/3.01.x/2.0/3.01.x/2.0/3.0
Length281mm281mm26cm
Power Connectors1x 6-pin + 1x 8-pin1x 6-pin + 1x 8-pin2x 6-pin
TDP250W250W195W
Idle Power Consumption14W13W14W
Gaming Power Consumption211W254W180W
MSRB Price429$499$499$

Source: 3DCenter.org

Power Consumption

IdleMulti DisplayGamingFurMarkTDP
Radeon HD 6950 2GB22W58W163W206W200W
Radeon HD 697022W66W205W267W250W
Radeon HD 7850~12W~30W~110W~135W?
Radeon HD 787013W31W127W159W?
Radeon HD 795016W52W154W208W200W
Radeon HD 797014W49W211W296W250W
Radeon HD 7970 “GHz Edition”13W49W254W351W250W
GeForce GTX 560 Ti16W57W153W193W170W
GeForce GTX 560 Ti 448 Core25W74W197W243W210W
GeForce GTX 57024W70W199W247W219W
GeForce GTX 58031W92W238W318W244W
GeForce GTX 67014W17W170W184W170W
GeForce GTX 68014W23W180W194W195W

Source: 3DCenter.org

Overclocking Roundup

 

Overclocking RoundupAMD Radeon HD 7970 GHz EditionAMD Radeon HD 7970
Core ClockMemory ClockCore ClockMemory Clock
Anandtech1150 MHz1600 MHz1100 MHz1575 MHz
TechPowerUP1185 MHz1635 MHz1075 MHz1715 MHz
Hexus1150 MHz1650 MHz1075 MHz1525 MHz
PC Perspective1150 MHz-1025 MHz1375 MHz
Guru3D1200 MHz1625 MHz1052 MHz1450 MHz
Tom’s Hardware1175 MHz-1125 MHz1575 MHz
HardOCP1180 MHz1600 MHz--
HotHardware1195 MHz1550 MHz--
Hardware Heaven1256 MHz1648 MHz1110 MHz1505 MHz
Hardware Canucks1156 MHz1561 MHz1078 MHz1554 MHz
SweClockers1150 MHz1600 MHz1180 MHz1600 MHz
Benchmark1150 MHz1580 MHz1125 MHz1575 MHz
PC Games Hardware1150 MHz1750 MHz--
HT4U1150 MHz1700 MHz1070 MHz1500 MHz
Pclab1190 MHz1610 MHz1125 MHz1575 MHz
Average Clock1172 MHz1624 MHz1095 MHz1544 MHz

Conclusion

AMD did a great job at preparing their refreshed Radeon HD 7970. The new Tahiti XT2 GPU can now be overclocked to an average 1175 MHz, which 7% higher than its original version. Also memory seems to be handling new clock speeds quite well, with the average 1624 MHz (5% better). So yes, card is a very good solution for high-end setups, but it’s up to you to decide whether you need highly overclockable card (Radeon HD 7970 is on the top positions in almost every benchmark record), or just the GeForce GTX 680, which is not that power hungry as AMD’s card.

Both cards are now offered at similar price. The only problem is the availability of the GTX 680, but NVIDIA has still few weeks before GHz Edition officially launches in stores.

by WhyCry
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