Technical Data / Specifications

Gigabyte's GeForce GTX 760 OC 4GB V1 is based on NVIDIA's Kepler GK104-225 A2 chip, which is manufactured by TSMC using the latest 28 nanometer process technology. With the GeForce GTX 760 you get six SMX units which results in 1'152 CUDA cores. Following the specs further, there are 96 TMUs, 32 ROPs, a 256 Bit wide memory interface and 4 GB of GDDR5 memory.
Frequency wise, since Gigabyte didn't bother overclocking the memory, the latter stays clocked at 1'502 MHz (effective 6'008 MHz). On the GPU you find a very nice factory overclocking with a base clock of 1'085 MHz and a typical boost clock of 1'150 MHz. Things get more interesting when looking at the actual working frequencies, during our tests the highest boost clock we measured was 1'228 MHz and the average boost clock was also 1'228 MHz.

The card also supports GPU Boost 2.0. The first version of GPU Boost stopped overclocking the GPU when a certain power target was hit. This new second version of GPU Boost stops overclocking the card, when a certain temperature is being reached. This makes sense since the temperature is the bigger inhibitor than the power target in most cases. In this case the temperature target is 80 degrees Celsius. In other words, as long as the GPU runs lower than 80°C it will keep overclocking until the maximum frequency has been reached. When 80°C is hit, the frequency will be lowered in 13 MHz steps until the base clock frequency if necessary to keep the core below 80°C. This is why in our case the average boost clock was 78 MHz higher than the typical boost clock the manufacturer advertises.

	MSI HAWK	Gigabyte OC V1	EVGA SC ACX	GeForce GTX 760
Chip	GK104-225-A2	GK104-225-A2	GK104-225-A2	GK104-225-A2
Process	28 nm	28 nm	28 nm	28 nm
Transistors	3.54 billion	3.54 billion	3.54 billion	3.54 billion
GPU clock	1'111 MHz	1'084 MHz	1'072 MHz	980 MHz
GPU Boost clock	1'176 MHz	1'150 MHz	1'137 MHz	1'033 MHz
Memory GDDR5	2'048 MB	4'096 MB	2'048 MB	2'048 MB
Memory clock	1'502 (6'008) MHz	1'502 (6'008) MHz	1'502 (6'008) MHz	1'502 (6'008) MHz
Memory interface	256 Bit	256 Bit	256 Bit	256 Bit
Memory bandwidth	192'300 MB/s	192'300 MB/s	192'300 MB/s	192'300 MB/s
TMUs	96	96	96	96
Shader Cores	1'152 (6 SMX)	1'152 (6 SMX)	1'152 (6 SMX)	1'152 (6 SMX)
ROPs	32	32	32	32
TDP	170 Watt	xxx Watt	170 Watt	170 Watt
PCB Type	Custom Design	Custom Design	Custom Design	Reference Design
Lenght (PCB - Total)	26.5 - 26.5 cm	25.5 - 28.0 cm	24.3 - 24.3 cm	17.5 - 24.1 cm
Height (PCB - Total)	11.0 - 12.8 cm	11.0 - 12.5 cm	11.0 - 11.0 cm	11.0 - 11.0 cm
Slots	2	2	2	2
Cooler	Twin Frozr IV Adv.	WindForce 3X	EVGA ACX	NVIDIA Reference
MSRP	$XXX	$XXX	$XXX	$249

Gigabyte decided to equip the GeForce GTX 760 OC 4GB V1 with their very own cooling solution answering to the name WindForce 3X 450W. The latter is slightly different from the one you find on the GTX 780 of the same manufacturer. This one also features two 8mm and four 6mm copper heatpipes but they are arranged differently. Soldered to the heatpipes you find the fin stack which is being fed with fresh air via three 80mm fans. They carry the model number T128010SU and have been inclined in order to blow the air away better at the top of the card.
Overall the cooler is well manufactured but the copper base doesn't have a the mirror finish. Yet it's far better from what we found on the GTX 780 WindForce cooler. Around the base you find an aluminium part which is used to fix the cooler to the PCB and also to cool the memory chips that are on this side of the PCB thanks to thermal pads.
The rear fin stack has been equipped with an aluminium plate to cool the MOSFETs of the GPU power design. A thermal pad has also been used in this case.



A closer look at the custom PCB shows that Gigabyte equipped this card with a 6+2 phase power design. In this case, the GPU gets six phases, two more than on the reference model. The memory can rely on two phases.

Checking the voltage regulation chips we find a digital multi-phase controller ADP4100 from ON Semiconductor for the GPU and a dual phase controller uP1610P from uPI Semiconductor for the memory.



The memory chips used are made by Hynix and carry the model number H5GQ2H24AFR R0C. They are specified to run at 1'500 MHz (6'000 MHz effective).

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Page 2 - Technical Data / Specifications	Page 13 - Far Cry 3
Page 3 - Preview & Delivery	Page 14 - Sleeping Dogs
Page 4 - Test Setup	Page 15 - The Elder Scrolls V: Skyrim
Page 5 - 3DMark Fire Strike	Page 16 - Metro: Last Light
Page 6 - Unigine Heaven 4.0	Page 17 - GTA V
Page 7 - BattleField 3	Page 18 - Power Consumption
Page 8 - Borderlands 2	Page 19 - Fan Speed / Noise Level
Page 9 - Bioshock Infinite	Page 20 - Temps - Idle / FurMark / BF3
Page 10 - Crysis 3	Page 21 - Performance/Price & Performance/Watt
Page 11 - Call of Duty Black Ops 2	Page 22 - Conclusion