Zotac GeForce GTX 1070 Ti AMP Extreme Review

It seems like Zotac's R&D department had the right idea when they tackled Nvidia's GeForce GTX 1070 Ti. Little did they know just how much could go wrong when the money men try to play the role of engineers.

Since the performance of all third-party GeForce GTX 1070 Ti cards is similar, given fixed base and GPU Boost clock rates mandated by Nvidia, actual benchmark results depend on the GPU Boost frequencies each vendor can sustain. As you might imagine, then, cooling and chip quality play the most important roles. That's why we're putting our emphasis on the actual implementation of each model. To that end, a lot of equipment goes into thoroughly documenting a graphics card's behaviors.

At this point, it's not possible to reach a meaningful conclusion by comparing the performance of one card over another. The differences are too small. Therefore, we're not going to label manufacturers in our benchmarks, particularly since one of those two variables (chip quality) cannot be held constant, even between retail samples off the shelf. Just know that every GeForce GTX 1070 Ti fares similarly out of the box.

Specifications

Not only does Zotac's bundle include a software DVD, user manual, and eight-pin power adapter, but also a brace to help compensate for the card's substantial weight.

Exterior

Zotac's fan shroud is made of a light alloy, with carbon on rough anthracite highlights. The 1350g card measures an impressive 32.5cm long from the I/O bracket to its end, 12.5cm tall from the motherboard slot's upper edge to the top, and 5.3cm wide, including the backplate.

That length measurement is primarily a product of Zotac's three-fan cooler. Each nine-blade fan has a diameter of 8.7cm. Plus, the shroud itself is fairly large. As a result, it may be challenging to position this extra-long card in your case.

Around back, the PCB is covered by a one-piece, almost U-shaped plate. While the backplate doesn't help with cooling, it also has no negative impact thanks to ventilation openings cut into the surface.

Plan for an additional 5mm of clearance for the backplate. This extra requirement means the Zotac GeForce GTX 1070 Ti AMP Extreme isn't particularly well-suited for multi-GPU configurations. The card's stability suffers without the backplate installed, and the large width measurement means two won't sit back to back comfortably. You'd need a vacant slot in between them.

Up top, a centered Zotac label set into an acrylic plate is perhaps the most eye-catching highlight. Spectra lighting effects allow you to customize the color of this logo and border elements on the card's fan shroud using Zotac's FireStorm software.

Two eight-pin auxiliary power connectors are rotated by 180° to avoid interfering with the heat sink's fins. They're positioned at the card's end, facing up, so you don't have to worry about even more clearance behind the GeForce GTX 1070 Ti AMP Extreme in your chassis. The design feels rather slim and compact, despite its bulky dimensions.

From the back, this card is completely closed off. That makes sense, as the cooling fins are oriented vertically, blocking air from moving side to side and instead guiding it up (out the top) and down (towards your motherboard).

The I/O bracket features five familiar outputs, four of which can be used simultaneously in multi-monitor configurations. In addition to the single DVI connector, you get one HDMI 2.0 port (particularly useful for VR HMDs) and three DisplayPort 1.4-ready interfaces. Ventilation holes cut into the plate suggest help with exhaust, but they really serve no purpose since the fins direct air vertically.

Specifications

Since the technical specifications are required to be the same for all GeForce GTX 1070 Ti, the following table applies to all cards collectively:

GPU
GeForce GTX 1080 (GP104)
GeForce GTX 1070 Ti (GP104)
GeForce GTX 1070 (GP104)
SMs
20
19
15
CUDA Cores
2560
2432
1920
Base Clock
1607 MHz
1607 MHz
1506 MHz
GPU Boost Clock
1733 MHz
1683 MHz
1683 MHz
GFLOPs (Base Clock)
8228
7816
5783
Texture Units
160
152
120
Texel Fill Rate
277.3 GT/s
244.3 GT/s
201.9 GT/s
Memory Data Rate
10 Gb/s
8 Gb/s
8 Gb/s
Memory Bandwidth
320 GB/s
256 GB/s
256 GB/s
ROPs
64
64
64
L2 Cache
2MB
2MB
2MB
TDP
180W
180W
150W
Transistors
7.2 billion
7.2 billion
7.2 billion
Die Size
314 mm²314 mm²314 mm²
Process Node
16nm
16nm16nm

Test Systems

We introduced our new test system and methodology in How We Test Graphics Cards. If you'd like more detail about our general approach, check that piece out. In this case, only the CPU, RAM, motherboard, and cooling system are different.

Test System And Configuration
HardwareIntel Core i7-6900K @ 4.3 GHz
MSI X99S XPower Gaming Titanium
Corsair Vengeance DDR3-3200
1x 1TB Toshiba OCZ RD400 (M.2, System)
2x 960GB Toshiba OCZ TR150 (Storage, Images)
be quiet! Dark Power Pro 11, 850W Power Supply
Windows 10 Pro (Creators Update)
CoolingAlphacool Eisblock XPX
Alphacool Eiszeit 2000 Chiller
2x be quiet! Silent Wings 3 PWM
Thermal Grizzly Kryonaut
CaseLian Li PC-T70 with Extension Kit and Mods
Configurations: Open Benchtable, Closed Case
MonitorEizo EV3237-BK
Power Consumption Measurement
Contact-free DC Measurement at PCIe Slot (Using a Riser Card)
Contact-free DC Measurement at External Auxiliary Power Supply Cable
Direct Voltage Measurement at Power Supply
2x Rohde & Schwarz HMO 3054, 500MHz Digital Multi-Channel Oscilloscope with Storage Function
4x Rohde & Schwarz HZO50 Current Probe (1mA - 30A, 100kHz, DC)
4x Rohde & Schwarz HZ355 (10:1 Probes, 500MHz)
1x Rohde & Schwarz HMC 8012 Digital Multimeter with Storage Function
Thermal Measurement
1x Optris PI640 80Hz Infrared Camera + PI Connect
Real-Time Infrared Monitoring and Recording
Acoustic Measurement
NTI Audio M2211 (with Calibration File, Low Cut at 50Hz)
Steinberg UR12 (with Phantom Power for Microphones)
Creative X7, Smaart v.7
Custom-Made Proprietary Measurement Chamber, 3.5 x 1.8 x 2.2m (L x D x H)
Perpendicular to Center of Noise Source(s), Measurement Distance of 50cm
Noise Level in dB(A) (Slow), Real-time Frequency Analyzer (RTA)
Graphical Frequency Spectrum of Noise

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