Technical data / specifications

The GeForce GTX 670 DirectCU II is ASUS' new flagship model regarding their GTX 670 portfolio. This card is based on the GK104 chip which is being manufactured using TSMCs new 28 nanometer process technology. Already at a first glance you can see that this card is everything. ASUS for example uses a much bigger PCB which offers plenty of space for a more complex, digital power design. Therefore you get six phases regarding the GPU and an additional two phases for the GDDR5 memory. Furhtermore there is the excellent DirectCU II cooler which in this case is almost unhearable, even if the card is under heavy load.

Looking at cock speeds we see that the GPU runs at 1'059 MHz standard and 1'137 MHz boost clock. The GDDR5 memory clocks at 6'008 MHz. Furhtermore there is 256 bit memory interface we results in a 193'384 Megabyte per second memory bandwidth. In total there is 2'048 Megabyte of GDDR5 memory.

The GPU itself consists of 3.54 billion transistors. The architectural hierarchy starts with a so called GigaThread Engine, which marshals processed and unprocessd information between the GPU and the PCI-Express 3.0 system interface. Further down in the hierarchy there are four Graphics Processing Clusters (GPCs), which can be seen as a common resource. At this point you'll also find a the raster eingine and two streaming multiprocessors (SMs). Altough NVIDIA decided to change their name which means that they're now called SMX.

	GeFroce GTX 680	ASUS GeForce GTX 670 DirectCU II Top	Radeon HD 7970	Radeon HD 7950
Chip	GK104	GK104	Tahiti	Tahiti
Process	28 nm	28 nm	28 nm	28 nm
Transistors	3.54 billion	3.54 billion	4.31 billion	4.31 billion
GPU clock	1'006 MHz (Boost 1'058 MHz)	1'059 MHz (Boost 1'137 MHz)	925 MHz	800 MHz
Shader clock	1'006 MHz	1'059 MHz	925 MHz	800 MHz
Memory	2'048 MB GDDR5	2'048 MB GDDR5	3'072 MB GDDR5	3'072 MB GDDR5
Memory clock	6'000 MHz	6'008 MHz	5'500 MHz	5'000 MHz
Memory interface	256 Bit	256 Bit	384 Bit	384 Bit
Memory bandwidth	192'400 MB/s	192'384 MB/s	264'000 MB/s	240'000 MB/s
TMUs	128	112	128	2x 96
TAUs	--	--	128	2x 96
Shader Cores	1'536 (5D)	1'344 (5D)	2'048 (1D)	1'792 (1D)
ROPs	32 ROP	32 ROP	32 ROP	32 ROP
Shader model	SM 5	SM 5	SM 5.1	SM 5.1
Maximum board power	185 Watt	173 Watt	250 Watt	200 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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