Technical data / Specifications

With the ASUS GeForce GTX 650 Ti DirectCu II Top you get a factory overclocked card with a custom PCB design as well as a DirectCU II v1 cooler. The manufacturer claims that this baby is 8,7 % faster than the reference design, 20 % cooler and three times quieter. Thanks to the factory overclocking, custom cooler and reworked PCB design we can kind of believe that.

Looking at clock speeds we see that the GPU runs at 1'033 MHz standard without any turbo or boost. The stock designed GTX 650 Ti runs at 928 MHz without any boost as well. No factory overclocking has been made regarding the GDDR5 memory which stays clocked at 1'350 MHz (5'400 MHz effective) following  nVidia's recommendations. Pity because the memory chips used on this card should be able to work alot faster.

Now looking at the physical specifications of the DirectCU II Top version as said before ASUS reworked the PCB, binned the core and used their own GPU cooler. The DCU II Top has a 5-phase super alloy digital power design. The GPU gets four phases and the memory gets one. In comparison the reference GTX 650 Ti has only 3 analog phases (two for the GPU and one for the memory). You also find a lot of ASUS technology that helps to improve overclocking, power efficiency, noise reduction (less EMI), lifespan and so on.
The DCU II Top version is powered by the DirectCU II cooler v1. The first thing that came to mind was: What the hell! ASUS come on why do you use the v1 which is total crap compared to the v2. Then I figured out why, the heat issued from the GTX 650 Ti is so weak that the doesn't really have to work hard. Therefore the v1 version is suitable (I will give more details in the conclusion). This cooler features two different 80mm fans, three 6mm heatpipes and a red/black design. The fan that is located on top of the GPU has 9 blades while the other one has 11.
The memory chips used on this card are made by Hynix and carry the model number H5GQ2H24AFR-R0C. They are specified to run at 1'500 MHz and ASUS clocks them only at 1'350 MHz, pity. This can be fixed with any overclocking software. We pushed the chips of our card to their specs (1'500 MHz) and ran some heavy workload without any artifacts nor issues. Wonder why ASUS didn't clock them higher in the first place as they can do it and this is supposed to be the Top card.

Pictured below both reference design and DCU II Top cards, the ASUS on is almost twice the length:

	GeForce GTX 660 Ti	EVGA GTX 650 Ti SuperSuperClocked	ASUS GTX 650 Ti DirectCU II Top	GeForce GTX 650 Ti
Chip	GK104	GK106	GK106	GK106
Process	28 nm	28 nm	28 nm	28 nm
Transistors	3.54 Billion	2.54 Billion	2.54 Billion	2.54 Billion
GPU clock	915 MHz (Boost 980 MHz)	1'071 MHz (No Boost)	1'033 MHz (No Boost)	928 MHz (No Boost)
Memory	2'048 MB GDDR5	2'048 MB GDDR5	1'024 MB GDDR5	1'024 MB GDDR5
Memory clock	6'000 MHz	1'350 MHz (5'400 MHz)	1'350 MHz (5'400 MHz)	1'350 MHz (5'400 MHz)
Memory interface	192 Bit	128 Bit	128 Bit	128 Bit
Memory bandwidth	144'000 MB/s	86'400 MB/s	86'400 MB/s	86'400 MB/s
TMUs	112	64	64	64
TAUs	--	--	--	--
Shader Cores	1'344 (7 SMX)	768 (4 SMX)	768 (4 SMX)	768 (4 SMX)
ROPs	24 ROP	16 ROP	16 ROP	16 ROP
Shader model	SM 5	SM 5	SM 5	SM 5
Maximum board power	150 Watt	110 Watt	xxx Watt	110 Watt

Page 1 - Introduction	Page 12 - Call of Duty Modern Warfare 3
Page 2 - Technical Data / Specifications	Page 13 - BattleField 3
Page 3 - Preview / Delivery	Page 14 - Crysis 2
Page 4 - Test Setup	Page 15 - Dragon Age 2
Page 5 - 3DMark 11	Page 16 - S.T.A.L.K.E.R. Call of Pripyat
Page 6 - 3DMark Vantage	Page 17 - The Elder Scrolls V: Skyrim
Page 7 - Unigine Heaven	Page 18 - StarCraft II
Page 8 - TessMark	Page 19 - Power Consumption
Page 9 - Alien vs Predator	Page 20 - BenchMarks and Games Settings
Page 10 - Batman: Arkham City	Page 21 - Conclusion
Page 11 - DIRT 2

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