Starting at $ 2,350
According to Microsoft, its Surface device line is considered a benchmark for PC-related hardware, despite the fact that many of them compete directly in retail store sales. Many of Microsoft's OEM partners are encouraged to follow Microsoft's steps to design aspiration devices such as Surface Pro, Surface Book, Surface Laptop (perhaps experimenting with 3 × 2 screen aspect ratios) and Surface Studio, but to A more consumer friendly price range. .
However, until recently, PC manufacturers had only been forced to test the waters of the Surface Pro 2-in-1 form factor while refining their own traditional Surface Laptop deck competitors.
That was until Lenovo created an all-in-one computer that strangely reminds of Surface Studio.
I think the Lenovo A940 is the first device with an articulated joint and a USB-connected application control device that combines ingenuity with the hinge and Surface Studio surface dial. . Comparatively speaking, it seems that Lenovo took into consideration a workflow beyond its 27 "sliding screen, easy to use for the designer, unlike Surface Studio, including the processor, I / O ports and chips of graphics needed to be a complete workstation.
In addition, Lenovo made economic considerations of space with its AIO base to incorporate a tray area for users to store their keyboard and mouse connected to Bluetooth, in addition to adding a place for the support of the multitude of wireless devices that the average person has these days. 
I spent the last month day after day with the Lenovo A940 while only spending a little time with what I think are its direct competitors in Surface Studio and even the 27-inch Apple iMac.
On paper, the Lenovo IdeaCentre A940 is so competitive as or the iMac and the Surface Studio and, in a way, a more complete kit.
Out of the box, Lenovo packs the A940 w With the latest Intel Core i7-8700 processor that includes a Turbo boost (3.20GHz) and up to 4.60 GHz, 6 Cores with 12MB of cache. Comparatively speaking, the Surface Studio has an Intel Core i7-7829HQ 45W quad-core CPU that modified the portable class processor.
Another area where the A940 increases its competitive advantage is with memory ready to use with 32 GB of DDR4. Surface Studio offers a model configuration that also includes 32 GB, but customers will pay a premium for that $ 3,499.00 update.
Where the A940 falls short is its GPU support that can keep some 3D, movies and visuals. Effect designers will drop this on their desktops in this iteration. The A940 uses an AMD Radeon RX 560 with a 4GB memory capacity that is slightly below the 570X of the iMac and even more than the NVIDIA GeForce GTX 1060 and 1070 from Surface Studio.
with the inclusion of 1 TB of mixed storage with 256 GB of PCIe SSD allocated, an Intel Thunderbolt port, 5 USB 3.0 and 3.1 ports, 3-in-1 card reader, HMDI slot, connector audio and IR camera with Windows Hello support.
However, in real-world workflows, the A940, Surface Studio and even the iMac on an i5 or i7 have outstanding performance. As I said, I only had a brief time in the store with the iMac and Surface Studio, but I tried to replicate much of my web-based workflows and the specific downloadable program tasks replaced with a performance test.
Although I am not a Pixar-level designer or artist, I tried and operated the A940 since it is being marketed primarily by Lenovo.
Meet the Yoga A940. With a 27 ″ tilting 4K screen with pen holder, a content creation dial and other innovative solutions, it is an all-in-one PC designed to provide the ultimate workspace for your creativity.
He often rotated the screen with hinges at its 20 degree angle for notes, scribbles, drawings and Adobe image projects. Thanks to the practical Content Creation Marker implemented, I had little concern for resting portions or all my weight on the screen during long periods of drawing or image editing.
Despite the lower GPU specified in The A940, most of what I worked on was pretty smooth, the only time I had some performance issues was during the 4K video editing , games and PSD with many layers. Along with the dragging of pixels, the machine would enter the leaf blower mode quite frequently making night work with two light children sleeping practically impossible.
For tasks related to my daily work, the A940 flew through everything with ease, since multiple Excel Frames are documented in several instances of Chrome and Chromium Edge open tabs loaded with extensions.
The game in the A940 is average, as expected. Despite the enhanced RAM, the GPU and the graphics chip, there is no real benefit in games on this device through a dedicated gaming platform. If the idea is to consolidate the devices and expenses, then the A940 offers a decent desktop gaming experience based on the fidelity of the game.
One of Lenovo's main selling points for its devices is its output. The experience of the box where keyboards, mice and pens are included with the price of the label and ready to use immediately. In the case of the A940, all the aforementioned accessories are included in the package, as well as its pivoting Precision Dial, unlike the Surface Studio and its Surface Dial.
I give the Precision Dial team recognition for not having also created a Creative Dongle as the surface dial. The Precision Dial works conceptually in the same way as the Surface Dial, but the details are in the Lenovo implementation and offer a completely different and welcome experience.
Instead of the magic mounted on the Surface Dial display, Lenovo approached its Precision Dial implementation with a more practical USB side connection.
The dial can be connected to both sides of the screen through a dedicated USB port and comes with an ingenious LED that can be labeled for a specific use of the software. There are only a few applications that work with the LED on the Precision Dial, but Lenovo plans to offer more in the coming months. Other features of precision dialing include adjustment of volume, zoom, screen brightness and sensitivity controls in the application, such as color, hue and saturation, as well as pencil and shading density.
As mentioned, Lenovo includes a keyboard and a wired / wireless mouse box that works properly or, depending on your familiarity with the Lenovo U-shaped buttons. On laptops, I enjoy a good Lenovo keyboard and button design, but for the desktop, I often found myself replacing Lenovo-approved hardware with my designer Microsoft keyboard and mouse for speed and accuracy. Either way, both options fit perfectly on the base and under the screen when I was in creative screen mode (I don't think it's one thing, but I'd like to start as one).
 The screen and the base
From a purely aesthetic design point of view, I prefer the more minimalist approach to Surface Studio, but Lenovo's functional consideration will probably win most consumers .
The A940's screen is a bit wider across [Surface] and iMac (on its edges) and also seems to have a larger bevel ratio than the Surface Studio.
At 27 inches and with a 4K UHD IPS multi-touch screen, the A940 is held against the 28-inch Surface Studio PixelSense screen with 10-point multi-touch.
Both panels support pencil input, which makes the iMac out of the competition. Lenovo has come a long way with its pen technology and now has 4,096 levels of pressure sensitivity.
Unfortunately, the A940 does not spin as low as the Surface Studio, but thanks to its precision side-mount dial, you don't have to. .
However, I'm not sure how often people will move the 32 lb device. much of the weight at the base of the device.
The base of the device is where Lenovo steals the race and illuminates the ingenuity of its hardware equipment.
Unlike the base of the iMac or Surface Studio, the base of the A940 is the width of the computer that matches its 27-inch screen counterpoint and is equipped with a bar system Clear and robust Dolby Atmos sound / soundbar, as well as sections created for storage, a standard-sized keyboard, a mouse, and even wireless smartphones.
The A940 matches an iMac and Surface Studio on a wide variety of fronts.
Perhaps, Lenovo could have achieved a better graphical experience by implementing the latest NVIDIA GPU or paying some attention on its relatively unsatisfactory webcam, but in general, the package feels more thought-out than any of its competitors.
Includes a wireless keyboard, a pencil, a pen and a creative content assistance tool in the box for a price of one thousand dollars cheaper than any of its competitors could be the rebirth of the All-in-One for the market .
Additional readings: Adobe, iMac, Lenovo IdeaCentre A940, Microsoft, Precision Dial, Surface Surface, Surface Studio