Technical Data / Specifications
With the EVGA GeForce GTX 760 SuperClocked ACX you get a card which features
a custom PCB as well as a custom cooler. The ASIC quality
measured on our sample was 79.9 % which is high considering the average being at
73 % on the cards we had at hands.
About ASIC quality:
EVGA's GeForce GTX 760 SuperClocked ACX 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 2 Gigabyte of GDDR5 memory, which is clocked
at 1'502 MHz (effective 6'008 MHz). In the end there is a memory bandwidth of
192 Gigabyte per second. Concerning the GPU's clock speeds it runs at a base
clock of 1072 MHz and a boost clock of 1137 MHz. During our tests the highest
boost clock we measured was 1'215 MHz and the average boost clock was also 1'215 MHz.
The EVGA GeForce GTX 760 SuperClocked ACX 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 at less than 80°C it will keep overclocking until the maximum frequency has been reached. This is why in our case the average boost clock was
182 MHz higher than the typical boost clock NVIDIA advertises.
nVidia GeForce |
GeForce GTX 770 |
EVGA GTX 760 SC ACX |
GeForce GTX 760 |
GeForce GTX 670 |
Chip |
GK104-425-A2 |
GK104-225-A2 |
GK104-blah |
GK104 |
Process |
28 nm |
28 nm |
28 nm |
28 nm |
Transistors |
3.54 billion |
3.54 billion |
3.54 billion |
3.54 billion |
GPU
clock |
1'046 MHz |
1'072 MHz |
980 MHz |
915 MHz |
GPU Boost
clock |
1'085 MHz |
1'137 MHz |
1'033 MHz |
980 MHz |
Memory |
2'048 MB GDDR5 |
2'048 MB GDDR5 |
2'048 MB GDDR5 |
2'048 MB GDDR5 |
Memory
clock |
1'750 MHz (7'000 MHz) |
1'502 MHz (6'008 MHz) |
1'502 MHz (6'008 MHz) |
1'502 MHz (6'008 MHz) |
Memory
interface |
256 Bit |
256 Bit |
256 Bit |
256 Bit |
Memory
bandwidth |
224'400 MB/s |
192'300 MB/s |
192'300 MB/s |
192'300 MB/s |
TMUs |
128 |
96 |
96 |
112 |
Shader Cores |
1'536 (8 SMX) |
1'152 (6 SMX) |
1'152 (6 SMX) |
1'344 (7 SMX) |
ROPs |
32 |
32 |
32 |
32 |
Maximum board power |
230 Watt |
XXX Watt |
170 Watt |
170 Watt |
PCB Type |
Reference Design |
Custom Design |
Reference Design |
Reference Design |
Lenght (PCB - Total) |
26.7 - 26.7 cm |
24.3 - 24.3 cm |
17.5 - 24.1 cm |
17.5 - 24.1 cm |
Height (PCB - Total) |
11.0 - 11.0 cm |
11.0 - 11.0 cm |
11.0 - 11.0 cm |
11.0 - 11.0 cm |
Slots |
2 |
2 |
2 |
2 |
Cooler |
NVIDIA Reference |
EVGA ACX |
NVIDIA Reference |
NVIDIA Reference |
MSRP |
$399 |
$259 |
$249 |
$199 |
EVGA decided to equip the GeForce GTX 760 SuperClocked ACX with their latest
and greatest ACX cooler. In case of this card you get three copper heatpipes
that have not been nickel plated. Two of them have a diameter of eight
millimeter while the last one has a standard size of six millimeter. Soldered to the heatpipes you find the fin stack
which is being provided with fresh air via two fans and these fans measuer 87
millimeter in diameter. EVGA is very proud of the fact, that they use fans that
feature excellent build quality. Another reasonable addition is, that this
custom cooler establishes direct contact with the MOSFET's thank to thermal
pads. Overall this cooler seems to be better than EVGA's old Signature 2.
As the ACX cooler is longer than the 17.5cm of the reference PCB, EVGA decided
to extend the PCB to the size of the cooler. In the end the PCB is 6.8 cm longer
than the reference one but the card's total lenght is the same. On this PCB
extension EVGA deported the memory power design you usually find below the GPU
power design on the reference card. This way they free some space for an
additional phase to the GPU power design. The rest of the PCB extension is empty
and covered by some kind of cooling plate which doesn't cool anything but the
ground (GND)?
A closer look at the PCB shows that EVGA equipped this card with an analog
seven phase power design. The GPU gets its current from five phases and the
two phases left take good care of the memory. NVIDIA's reference design
features four plus two phases.
Checking the
voltage regulation chip we find a RT8802A Multi-Phase PWM controller from
Richtek, which is the same model that can be found on the GTX 680 for exemple.
The reference card from NVIDIA makes use of a NCP5392P from ON Semiconductor.
Furthermore there is an
unidentified Richtek 2-phase PWM labelled 08 FC 80R taking care of a stable
current supply for the the
memory which I guess it's the same kind or the same as on the reference designed
card.
There is also an INA3221 Triple-Channel voltage monitor from Texas Instruments.
You also finder the later on the reference card.
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).
Discuss this article in the forums