LG Gram Book 15.6" vs Microsoft Surface Pro 12 Comparison

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LG Gram Book 15.6"

15.6 inches | July 2025

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Microsoft Surface Pro 12

12 inches | May 2025

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LG Gram Book 15.6" vs Microsoft Surface Pro 12 Comparison Overview

LG Gram Book 15.6"

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Microsoft Surface Pr...

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LG Gram Book 15.6"

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Microsoft Surface Pr...

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In this review, we will be comparing Gram Book 15.6" and Surface Pro 12, two laptops from LG and Microsoft. LG Gram Book 15.6" was introduced to market in July 2025 and Microsoft Surface Pro 12 was launched in May 2025. There is only 2 months difference between Gram Book 15.6" and Surface Pro 12 so we are expecting this to be a fair comparison regarding age and technology level.

Click for Available Configurations of the Laptops

Gram Book 15.6" and Surface Pro 12 are members of Microsoft's series of laptops. Below you can find the latest models from this series.

LG Series History

	Release Date	Screen Size	Dimensions	Weight
LG Gram Book 15.6"	July 2025	15.6"	359.8 x 237.8 x 19.4 mm	1.65 kg (3.64 lbs)
LG Gram 16 2025	July 2025	16.0"	355.1 x 242.3 x 16.8 mm	1.23 kg (2.71 lbs)
LG Gram 17 2025	July 2025	17.0"	378.8 x 258.8 x 17.8 mm	1.35 kg (2.98 lbs)

Here is a brief look at the main features of LG Gram Book 15.6" and Microsoft Surface Pro 12 before getting into our more detailed comparison.

LG Gram Book 15.6" Key Specs

Launched in July 2025
15.6" IPS LCD, 16:9 Aspect Ratio Display
CPU: Intel Core i5 1334U
GPU: Intel Iris Xe Graphics G7 (80EU)
8GB,16GB,32GB Ram
359.8 x 237.8 x 19.4 mm (14.17 x 9.36 x 0.76 inches)
Weight: 1.65 kg (3.64 lbs)

Microsoft Surface Pro 12 Key Specs

Launched in May 2025
12.0" Touchscreen - IPS LCD, 3:2 Aspect Ratio Display
CPU: Qualcomm Snapdragon X Plus (X1P-42-100)
GPU: Adreno X1-45
16GB Ram
274 x 190 x 7.8 mm (10.79 x 7.48 x 0.31 inches)
Weight: 0.68 kg (1.5 lbs)

Let's read on the following sections in order to better understand in detail how Gram Book 15.6" and Surface Pro 12 compares and decide which one is better for you.

**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Reasons to choose LG Gram Book 15.6" over Microsoft Surface Pro 12

Side Bezel Thickness	7.2 mm vs 10.2 mm	3 mm thinner bezels
Display Size	15.6 inches vs 12 inches	Larger Screen Estate
Screen Type	Matte vs Glossy	potentially less reflections on screen
Upgradable RAM	Yes vs No	More RAM Options
Upgradable Storage	Yes vs No	Easily increase the Storage when needed
NVMe Type SSD	Yes vs No	Faster data transfers
Thunderbolt	v4 vs No	Support audio, data, power and video all through one single port
HDMI Port	1x HDMI 1.4 vs No	Connect to external monitors directly via HDMI cable
SD Card Reader	Yes vs No	Read & Write SD Cards with the built-in reader
Numeric Pad	Yes vs No	Fast way to input numbers

Reasons to choose Microsoft Surface Pro 12 over LG Gram Book 15.6"

Weight	0.68 kg vs 1.65 kg	0.97 kg lighter
Screen-to-Body Ratio	~82.4% vs ~78.4%	Larger screen area ratio
Refresh Rate	90 Hz vs 60 Hz	Smoother media experience
Contrast Rate	1200:1 vs 700:1	more pleasing colors
Screen PPI	220 ppi vs 141 ppi	More pixels per inch
Touch Screen	Yes vs No	Interact with your fingers
Screen Resolution	2196 x 1464 pixels vs 1920 x 1080 pixels	Higher pixel count screen
Max Brightness	400 nits vs 300 nits	Brighter Screen
CPU Fabrication Process	4 nm vs 10 nm	Newer Generation CPU
GPU Fabrication Process	4 nm vs 10 nm	Newer Generation GPU
GPU FLOPS	2.3 TFLOPS vs 1.6 TFLOPS	Faster RAM Type
RAM Type	LPDDR5X vs DDR4	More advanced Wi-fi connectivity
WiFi Standard	v7 vs v6	More advanced Bluetooth connectivity
Bluetooth	v5.4 vs v5.2	Higher Resolution Camera
Webcam Resolution	1920 x 1080 vs 1280 x 720

Common Strengths of Microsoft Surface Pro 12 and LG Gram Book 15.6"

Launch Dates	July 2025 vs May 2025	Both laptops are recent models
Fast Charging Support	Yes vs Yes	Charge the battery in a shorter time
Dolby Atmos Support	Yes vs Yes	3D Surround Sound Support
VGA Output	No vs No	Connect to External Displays via VGA cable

Common Weaknesses of Microsoft Surface Pro 12 and LG Gram Book 15.6"

HDR Support	No vs No	No HDR Support

LG Gram Book 15.6" vs Microsoft Surface Pro 12: Physical Specs Comparison

In this section, we will be comparing the physical specifications and body features of the LG Gram Book 15.6" and the Microsoft Surface Pro 12.

Physical Specs
Weight	1.65 kg (3.64 lbs)	0.68 kg (1.5 lbs)
Surface Area	856 cm2 (132.6 inches2)	521 cm2 (80.7 inches2)
Screen to Surface Ratio	~78.4%	~82.4%
Side Bezel Thickness	~7.2 mm	~10.2 mm
Weight per Inch of Screen	0.11 kg/inch	0.06 kg/inch
	0.242 lbs/inch	0.132 lbs/inch
Colors	Silver	Gray, Blue, Purple

Comparison of the LG Gram Book 15.6" and the Microsoft Surface Pro 12 External Dimensions

Weight

Gram Book 15.6" weighs 1.65 kg (3.64 lbs), whereas the Surface Pro 12 weighs 0.68 kg (1.5 lbs). There is a notable difference in weight between these two laptops. However, it's important to consider that comparing their weights directly may not provide a complete picture since they also have different display sizes.

Weight Comparison

LG Gram Book 15.6"

Avg: 15.0-15.9"

Microsoft Surface Pro 12

Avg: 12.0-12.9"

Thickness Comparison

LG Gram Book 15.6"

Avg: 15.0-15.9"

Microsoft Surface Pro 12

Avg: 12.0-12.9"

Another value that we use for comparing the weights of the laptops is the Weight per Inch of Screen, which is calculated by dividing the total weight of the model with its usable diagonal screen size. This value for the LG Gram Book 15.6" is 0.11 kg/inch.In comparison, this value for the Microsoft Surface Pro 12 is 0.06 kg/inch.Here are some of the best performing laptops in this area:

Microsoft Surface Go 4: 0.05 kg/inch
LG Gram SuperSlim 15.6 2023: 0.06 kg/inch
Asus ProArt PZ13 HT5306: 0.06 kg/inch
Asus Zenbook A14 UX3407: 0.06 kg/inch
Dell Latitude 7330: 0.07 kg/inch
Lenovo ThinkPad X1 Nano Gen 2: 0.07 kg/inch
LG Gram 14 2022: 0.07 kg/inch
LG Gram 14 2-in-1 2022: 0.07 kg/inch

LG Gram Book 15.6" vs Microsoft Surface Pro 12: Internals (CPU, GPU, RAM, Battery, SSD, etc.) Comparison

CPU Comparison

CPU Model	Intel Core i5 1334U	Qualcomm Snapdragon X Plus (X1P-42-100)
Base Frequency	1.3 GHz	3.2 GHz
Turbo Frequency	4.6 GHz	3.4 GHz
Number of Cores	10 (2P + 8E)	8
Number of Threads	12	8
L3 Cache	12 MB
Integrated GPU	Intel Iris Xe Graphics (80EU)	Qualcomm Adreno X1-45
CPU Fabrication Process	10 nm	4 nm

Above you can see the CPU options and the CineBench and GeekBench test scores for both laptops, which gives an idea about what kind of performance difference you may experience between the LG Gram Book 15.6" and Microsoft Surface Pro 12.

You may also read reviews of latest laptops with the same CPUs and compare them:

Laptops with: Intel Core i5 1334U

Laptops with: Qualcomm Snapdragon X Plus (X1P-42-100)

GPU Comparison

GPU Model	Intel Iris Xe Graphics G7 (80EU)	Adreno X1-45
Base Clock Frequency	300 MHz	280 MHz
Boost CLock Frequency	1100 MHz	1107 MHz
TGP (Total Graphics Power)	15 W	30 W
Type	Integrated	Integrated
FLOPS	1,408 GFLOPS	2.3 TFLOPS
Memory Size	System Shared	System Shared
Memory Type	System Shared	LPDDR5X
Memory Bus	System Shared
Memory Speed	System Shared	8.45 Gbps
Shading Units Cores	640	1024
TMUs	40	48
ROPs	20	24

GPU is as critical as the CPU for graphic heavy applications and the table above gives a picture of how the two GPU compares. FLOPS is a measure of a GPU's performance based on the number of floating-point arithmetic calculations that the processor can perform within a second. LG Gram Book 15.6" has a FLOPS value of 1.6 TFLOPS whereas the Microsoft Surface Pro 12 ' has a FLOPS value of 2.3 TFLOPS. If graphical performance of the laptop is important for your use type, the Microsoft Surface Pro 12 may be the better choice between these two setups.

RAM Comparison

RAM	8GB 16GB 32GB	16GB
Memory Bus	1x8 GB	2x8 GB
RAM Clock	3200 MHz	8448 MHz
RAM Type	DDR4	LPDDR5X
Upgradable	Yes	No
Max RAM Size	32 GB
Total Slots	2
Memory Bus	PCI-E Gen 4.0 (4x)	Custom

The Surface Pro 12 provides a larger RAM capacity of 16 GB, which allows for smoother multitasking and improved performance in memory-demanding tasks compared to the Gram Book 15.6"'s RAM capacity of 8 GB.

LOCAL LLM Compatibility Evaluation

This quick guide shows what types of large language models (LLMs) each of these laptops could support, based on their respective hardware specifications. It's meant to help you compare their suitability for running AI models locally.

LLM Category	LG Gram Book 15.6"	Microsoft Surface Pro 12
Small Models(1-3B):Examples: Phi-2, Qwen-1.8B	✔ Run smoothly.	✔ Run smoothly.
Medium Models(7-8B):Examples: Mistral-7B, Qwen-7B	✔ Good performance.	✔ Good performance.
Large Models(13-30B):Examples: Mixtral, Qwen-14B	✖ Not supported.	✖ Not supported.
Extra-Large Models(65B+):Examples: LLaMA2-70B, Qwen1.5-72B	✖ Not supported on most systems. Requires high-end GPU or advanced setup.	✖ Not supported on most systems. Requires high-end GPU or advanced setup.

Note: Optimized (e.g., 4-bit) models may run on limited hardware. Performance depends on runtime and setup.

📌 MoE Models: Some models like Mixtral 8x7B and Qwen3-30B-A3B use a Mixture of Experts (MoE) design, activating only part of the model during inference. This means they can often run efficiently on laptops with 12–16 GB of VRAM when quantized.

BATTERY

BATTERY	51 Wh	38 Wh
Battery Type	Li-Ion	Li-Po
Replaceable	No	No
Fast Charging	Yes	No
Charging Port Position	Left	Right
Charge Power	65 W	45 W

Moreover, the Gram Book 15.6" boasts a larger battery capacity of 51 Wh, offering extended usage time compared to the Surface Pro 12's38 Wh.

Battery Comparison

LG Gram Book 15.6"

Avg: 15.0-15.9"

Microsoft Surface Pro 12

Avg: 12.0-12.9"

STORAGE
With a larger storage capacity up to 1 TB, the Gram Book 15.6" provides more space for storing files and applications compared to the Surface Pro 12's max. storage capacity of 512 GB.

Storage Options	256 GB, 512 GB, 1 TB	256 GB, 512 GB
Upgradable	Yes	No
Storage type	SSD (M2)	SSD (M2)
NVMe	Yes	No

If your budget allows, we recommend opting for the largest possible disk size, considering the potential increase in storage capacity needs in the future. However, please keep in mind the question 'What will the laptop be used for?' when making this decision. Of course, you can later upgrade the hard disk capacity by getting a larger disk. However, if your laptop has only one disk slot, it may not be as straightforward as a RAM upgrade, where you simply add or replace a module, as moving or cloning files to a new disk may be necessary.

LG Gram Book 15.6" vs Microsoft Surface Pro 12: Display Comparison

The display is an essential aspect to consider when comparing the LG Gram Book 15.6" and Microsoft Surface Pro 12 since its is the component that you interact the most and significantly impact the experience.

Screen Area and Dimensions

Now let's look at the comparison of the actual display areas of both laptops below, keeping the bezels around the screens out of the equation. Gram Book 15.6" has a display size of 15.6".On the other hand, Surface Pro 12 has a smaller 12.0" display.The total usable screen area of the Gram Book 15.6" is 670cm² / 104inch² whereas the Surface Pro 12's total usable screen area is 429cm² / 66inch².

PPI (Pixels per Inch)
Additionally, the Surface Pro 12 features a higher pixel density with 220 pixels per inch (PPI), ensuring sharper image details.

Screen PPI (Pixels Per Inch) Comparison

LG Gram Book 15.6"

Avg: 15.0-15.9"

Microsoft Surface Pro 12

Avg: 12.0-12.9"

Refresh Rate
The Surface Pro 12 offers a higher refresh rate of 90 Hz, resulting in smoother motion and improved visual experience.

Brightness
The Surface Pro 12 offers a higher maximum brightness of 400 nits, delivering a brighter screen.

Brightness Comparison

LG Gram Book 15.6"

Avg: 15.0-15.9"

Microsoft Surface Pro 12

Avg: 12.0-12.9"

LG Gram Book 15.6" vs Microsoft Surface Pro 12 Connectivity Comparison

In terms of connectivity,

Wifi
Surface Pro 12 features a more advanced Wi-Fi standard v7, providing faster and more reliable wireless connections compared to Gram Book 15.6" (v6).

Below, you'll find a Wi-Fi Versions Table, along with their release dates and speeds, to provide a brief overview of its development.

Wi-Fi Versions and Speeds

Standard	Speed	Release Date	Network	Frequency Bands (GHz)
Wi-Fi 7	up to 40 Gbps (5 GB/s)	2023	802.11be	2.4, 5, 6
Wi-Fi 6E	up to 9.6 Gbps (1.2 GB/s)	2020	802.11ax	2.4, 5, 6
Wi-Fi 6	up to 9.6 Gbps (1.2 GB/s)	2019	802.11ax	2.4, 5
Wi-Fi 5	up to 6.93 Gbps (866.25 MB/s)	2014	802.11ac	2.4, 5
Wi-Fi 4	up to 600 Mbps (75 MB/s)	2009	802.11n	2.4, 5

* Please note that the provided transfer rates are maximum theoretical values, and real-life performance may vary based on environmental factors.

USB
Gram Book 15.6" is equipped with 2x USB 3.2 USB-A ports. Surface Pro 12 does not have USB-A ports.
Both Gram Book 15.6" and Surface Pro 12 feature 2x USB 4.0 USB Type-C ports.

Below, you'll find a table of USB ports, along with their release dates and speeds.
To mitigate the confusion caused by generation names, the USB Implementers Forum (USB-IF) suggests using marketing names like USB 5Gbps, USB 10Gbps, and so forth, based on their respective transfer rates.

USB Type and Speeds

USB Type	Version	Speed	Date	Other Features/Explanations
USB4	Gen 4 (2.0)	80 Gbps	2022	Also known as USB 80Gbps
USB4	Gen 3×2	40 Gbps	2019	Also known as USB 40Gbps
USB 3.2	3.2 Gen 2x2	20 Gbps	2019	Double the data transfer rates of Gen 2
USB 3.2	3.2 Gen 2	10 Gbps	2017	Previously known as USB 3.1
USB 3.2	3.2 Gen 1	5 Gbps	2017	Previously known as USB 3.0
USB 3.1	3.1 Gen 2	10 Gbps	2013	Faster data transfer rates
USB 3.0	3.1 Gen 1	5 Gbps	2010	SuperSpeed USB, improved data transfer rates
USB 2.0	2.0	480 Mbps	2000	High-speed data transfer
USB 1.0	1.0	1.5 Mbps	1996	Original USB standard

Thunderbolt
Gram Book 15.6" is equipped with Thunderbolt 4 port. Surface Pro 12 does not have Thunderbolt port.

HDMI
Gram Book 15.6" features an HDMI port (1x HDMI 1.4) for connecting to external monitors. Surface Pro 12 does not have an HDMI port.

Below, you'll find a comparison table detailing different HDMI versions, including their bandwidth, color depth, maximum resolution, and release dates. This information can be helpful in understanding the capabilities of each HDMI version and choosing the most suitable one for your needs.

HDMI Comparison Table

HDMI Version	Maximum Resolution	Bandwidth (Gbps)	Color Depth (bits)	Release Date
HDMI 2.1-2.1b	7680 x 4320 *(8K)* @ 60p 3840 x 2160 *(4K)* @ 120p	48.0	48	2017
HDMI 2.0-2.0b	3840 x 2160 *(4K)* @ 60p	18.0	48	2013
HDMI 1.4-1.4b	3840 x 2160 *(4K)* @ 30p	10.2	48	2009
HDMI 1.3-1.3a	2560 x 1440 @ 60p	10.2	48	2006
HDMI 1.0-1.2a	1920 x 1200 @ 60p	4.95	24	2002

* Please note that the provided resolution values represent the maximum supported resolution, and actual display quality may depend on other factors such as source content and connected devices.

SD Card Reader
Gram Book 15.6" is equipped with an SD Card Reader for easy access to memory cards. Surface Pro 12 does not have an SD Card Reader.

Audio Jack
Gram Book 15.6" is equipped with a 3.5mm Audio Jack, allowing seamless connection to headphones and speakers. Surface Pro 12 does not have a 3.5mm Audio Jack.

To summarize the connectivity and ports details, please refer to the table below to see them listed.

Connectivity and Ports
WiFi Standard (latest: v7)	v6	v7
Bluetooth (latest: v5.4)	v5.2	v5.4
USB-A (latest: 3.2)	2x USB 3.2	No
USB Type-C (latest: USB4 2.0)	2x USB 4.0	2x USB 4.0
Thunderbolt (latest: 5)	Thunderbolt 4	No
HDMI (latest: 2.1)	1x HDMI 1.4	No
Display Port (latest: v2.0)	No	No
VGA	No	No
Optical Drive	No	No
Audio Jack 3.5mm	Yes	No
Ethernet RJ45	No	No
SD CardReader	Yes	No
Proprietary Charging Port	No	No