Gigabyte is currently offering four different GeForce GTX 760 all equiped with the WindForce 3X cooler. A reference clocked as well as an overclocked version that are both available in 2GB and 4GB variants. Today we are going to have a look at the OverClocked version with 4GB onboard memory in single card and in SLI operation.
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).
The card ships well bolstered in a foam made mold.
Bundled with the graphics card there is a driver CD and two power converters (2x Molex to PCIe-6pin
and 2xMolex to PCIe-8pin). The bundle is not pictured because our samples weren't
in the retail boxes.
Idle, temperature is
taken after 15 minutes @ lowest, 50 %, 70 % and 100 % fan speed.
Room Temperature: 25°C
Temperature under
Furmark
For FurMark, temperature is taken
after 15 minutes of GPU Burn test at lowest, 50 %, 70 % and 100 % fan speed.
We stopped the test when the GPU temperature hit 90°C.
Room Temperature: 25°C
Temperature and
fan speed under BattleField 3
For BattleField 3, temperature and fan speed
values taken, are the highest achieved after 1 hour gaming @ auto fan
speed.
The "Performance Index" value is calculated as the sum of all
benchmarks results divided by the amount of games (3DMark and Ungine not
included into the calculation).
Performance/Price
Graphics Cards
Performance Index
Price
(€)
Performance/€*10
AMD Radeon HD 7850
40.82
129
3.51
AMD Radeon HD 7870
48.80
147
3.32
nVidia GeForce GTX 650 Ti
30.06
94
3.20
nVidia GeForce GTX 650 Ti Boost
40.25
126
3.19
nVidia GeForce GTX 580
49.35
156
3.16
nVidia GeForce GTX 660
46.52
154
3.02
nVidia GeForce GTX 660 Ti
51.99
179
2.90
nVidia GeForce GTX 670
60.30
208
2.90
AMD Radeon HD
6870
30.93
110
2.81
nVidia GeForce GTX 760
56.87
205
2.77
EVGA GeForce GTX 760 SC ACX
63.03
228
2.76
ASUS GeForce GTX 760 DC2 OC
61.58
228
2.70
ASUS GeForce GTX 760 DC Mini OC
61.58
233
2.64
MSI
GeForce GTX 760 HAWK
64.16
247
2.60
AMD Radeon HD 7970 GHz Edition
68.30
273
2.50
AMD Radeon HD 7970
62.05
248
2.50
Gigabyte GeForce GTX 760 OC 4GB V1
64.30
263
2.44
nVidia GeForce GTX 680
66.70
285
2.34
nVidia GeForce GTX 770
69.98
325
2.15
Gigabyte GeForce GTX 760 OC 4GB V1 SLI
100.09
526
1.90
AMD Radeon HD 6950
35.91
209
1.72
nVidia GeForce GTX 780
79.80
511
1.56
AMD Radeon HD
6970
40.13
281
1.43
AMD Radeon HD
6990
73.04
661
1.10
nVidia GeForce GTX TITAN
85.50
823
1.04
More is better
Less is better
More is better
For the price we took the lowest price available on geizhals.eu,
on the day the review has been published.
Meanwhile we have tested five different GeForce GTX
760 and this Gigabyte leaves us with mixed feelings. Starting with the
good, the OC 4GB V1 is a high quality product with a nice design, a
better power design, a nice factory overclock and an oversized cooler.
Now the bad, the extra amount of memory doesn't bring much, it only
makes the card more expensive at first look and the card could be much
quieter.
Like MSI for example, Gigabyte also equips its card
with an oversized cooler but unfortunately there is something missing.
Overall the WindForce 3X 450W cooler is good. The design and quality are good,
temperatures are very good and the entire card is cooled well. But,
unfortunately the cooler isn't as silent as we thought it would be. It
could be quieter, after playing BattleField 3 for an hour the maximum temperature hit by the GPU was
65°C. In this case the maximum fan speed was 51%, translated
it means a noise level of about 37.5 dBA (silent but you hear the card).
It's not as bad as some other coolers but it is as loud as the DirectCU
Mini from ASUS and the two coolers are far from being in the same league.
- Cooling performance
- Noise levels
Performance
+
-
The 760 OC 4GB V1 is surprisingly fast. It's
perfectly normal that the card is fast with 1'228 MHz on the speedometer
but it manages to outperfm the MSI HAWK
which is clocked higher almost everywhere. Not much on average it's only
1% but there and there it was up to 5%. Since the memory chips are the
same, the manufacturer didn't do any tweaking on the memory timings and
the video memory usage never go above 1.5GB in the tested games we think,
for now, that the performance gain lies on the memory path. In other
words a system memory single sidded/dual sidded like effect.
A closer look at power consumption shows, that our test system, equipped
with the GTX 760 OC 4GB V1, burns 46 Watts under idle conditions and 197
Watts under load. Both results are very good, especially under
load.
- Performance/Watt
- Power consumption
Performance SLI
+
-
The SLI is on average 1.6x faster in the tested
games. Compared to high end cards such as the GTX Titan and GTX 780, the
GTX 760 OC 4GB V1 SLI is respectively 1.2 and 1.3x faster. In this case
the 760 SLI benefits from a much better Performance/Price ratio since
for less you have more performance.
Power consumption wise the ratio is lower obviously but it's still on a
good level.
- Performance/Price
- Power consumption
- Performance/Watt
Recommendation / Price
+
-
With a starting price of 263 Euros excluding
shipping costs accross the EU, the OC 4GB V1 isn't really cheap. That's about
60 Euros on top of the cheapest 760 and 15 Euros more expensive than the
HAWK from MSI for example. Obviously such higher price is because of the
extra onboard memory but since more memory on such a card doesn't bring
else than a price increase it makes the card less interesting.
The SLI however is very interesting for those who wants performance and
have a 530 Euros budget.
- Gaming
- Price
We
gave the
GeForce GTX 760 OC 4GB V1 from Gigabyte 4 out of 5 stars.