Intel HD Graphics (Cherry Trail) vs NVIDIA GeForce GTX 1060 Max-Q vs Intel HD Graphics 6000

Intel HD Graphics (Cherry Trail)

The Intel HD Graphics (Cherry Trail) is an integrated graphics card in the Cherry-Trail SoCs (e.g. Atom x7-Z8700). Based on a Broadwell GPU (Intel Gen8) and supports DirectX 11.2. Depending on the SoC offers 12 or 16 EUs.

Atom x7-Z8700: 16 EUs @ 200 - 600 MHz, dual-channel memory
Atom x5-Z8500: 12 EUs @ 200 - 600 MHz, dual-channel memory
Atom x5-Z8300: 12 EUs @ 200 - 500 MHz, single-channel memory

In Windows, gaming is limited to less demanding or quite old games. Using Android, even high end 3D games should run fluently. For example Team Fortress 2 was running on the Surface 3 (x7-Z8700) only in lowest settings and 1280x720 fluently (11 - 69 fps range).

The integrated video decoder is able to display even 4K videos (H.264 tested) fluently.

The Intel HD Graphics GPU in our review sample of the MS Surface 3 (Atom x7-Z8700) only supported DisplayPort 1.1 as it seems, as 4K (3840x2160) with 30 Hz was the maximum Refresh Rate we could achieve (no 60 Hz selectable with the pre-installed drivers).

NVIDIA GeForce GTX 1060 Max-Q

The Nvidia GeForce GTX 1060 with the Max-Q design is a mobile high-end GPU from the Pascal series. It is designed for thin and light laptops and about 10-15% slower than a regular GTX 1060 for laptops based on the cooling capabilities. The base frequency (1063-1265 MHz) is also much lower than on the regular GTX 1060 (1506 MHz, at least -16%) and the Boost (1341-1480 MHz) is also much lower compared to 1708 MHz (at least -13%) for the regular GTX 1060. The memory clock, however, is identical.

The clock is not the only difference compared to the regular GTX 1060 though. The drivers for the Max-Q version were optimized for efficiency (and not performance; only for Max-Q models), there are optimized voltage converters for 1V operation, high-end cooling methods, and a 40 dB limit for the fan noise (with clock adjustments to ensure this at all times).

Features

The GP106 chip is produced in 16nm FinFET at TSMC and offers a range of new features, like DisplayPort 1.4 (ready), HDMI 2.0b, HDR, Simultaneous Multi-Projection (SMP) and improved H.265 video de- and encoding (PlayReady 3.0). A list of improvements and features can be found in our article on the Pascal architecture.

The power consumption of the Max-Q design is notably lower than the normal GTX 1060 for laptops and ranges between 60 and 70 Watt (TGP) according to Nvidia.

Intel HD Graphics 6000

The Intel HD Graphics 6000 (GT3) is an integrated Broadwell graphics card revealed in Q1 2015. It can be found in several ULV SoCs (15 W TDP) such as the Core i5-5250U or i7-5650U. The so-called GT3 GPU offers 48 EUs (Execution Units) and therefore somewhat more shader power than the previous HD 5000 (40 EUs). Depending on the specific CPU, the maximum GPU frequency varies between 950 and 1000 MHz.

Architecture and Features

Broadwell features a GPU based on the Intel Gen8 architecture, which has been optimized in various aspects compared to the previous Gen7.5 (Haswell). Inter alia, the shader arrays called "subslice" have been reorganized and now offer 8 Execution Units (EUs) each. Three subslices form a "slice" for a total of 24 EUs. Combined with other improvements such as larger L1 caches and an optimized frontend, the integrated GPU has become faster and more efficient than its predecessor.

The HD Graphics 6000 represents the top-end version of the Broadwell GPU family and consists of two slices with 48 EUs. Beyond that, there is also a low-end (GT1, 12 EUs), a mid-range (GT2, 24 EUs) and a high-end variant (GT3e, 48 EUs + eDRAM).

All Broadwell GPUs support OpenCL 2.0 and DirectX 12 (FL 11_1). The video engine can now decode H.265 using both fixed function hardware as well as available GPU shaders. Up to three displays can be connected via DP 1.2/eDP 1.3 (max. 3840 x 2160 @ 60 Hz) or HDMI 1.4a (max. 3840 x 2160 @ 24 Hz). HDMI 2.0, however, is not supported.

Performance

Depending on the specific CPU, the maximum GPU frequency varies between 950 and 1000 MHz. Due to the low TDP, however, the average clock in 3D applications will be significantly lower. Overall, the HD Graphics 6000 outperforms the previous HD 5000 by 20 - 25 percent and offers a performance slightly below a dedicated GeForce 820M.

Games as of 2014/2015 will usually run fluently only at (very) low settings.

Power Consumption

Utilizing a new 14 nm process, the Broadwell ULV chips are specified at just 15 W TDP and therefore suited for thin ultrabooks. The TDP is flexible and can be further reduced (9.5 W), which has a significant impact on performance.