The Eluktronics Mech-15 G3R is a premium laptop suited for intensive gaming and challenging tasks like 3D rendering and machine learning, offering powerful components such as a high-end Intel processor and Nvidia RTX 3070 Ti graphics card, but it is also heavier and has a shorter battery life. In contrast, the Lenovo Legion Slim 5 is more affordable, lighter for better portability, and has a marginally longer battery life suitable for general use and engineering; although it has decent performance with an AMD Ryzen processor and Nvidia RTX 4060 graphics, it might not handle intense gaming or resource-heavy tasks quite as well as the Mech-15 G3R. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Eluktronics Mech-15 G3R
Very good for general use
Very good for gaming and AI
Very good for software development
Very good for content creation
Very good overall display quality
Good portability
Excellent keyboard
Advantages of the Lenovo Legion Slim 5
The Lenovo Legion Slim 5 has no clear advantages over the Eluktronics Mech-15 G3R.
Key differences
General Use
8.3/10
7.6/10
2560 x 1440
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
350.0 nits
DISPLAY BRIGHTNESS
300.0 nits
6.5 Hours
BATTERY LIFE
7.0 Hours
9.0/10
KEYBOARD QUALITY SCORE
8.5/10
7.0/10
PORTABILITY SCORE
6.7/10
The Eluktronics Mech-15 G3R is very good for general use, while the Lenovo Legion Slim 5 is good.
The Eluktronics Mech-15 G3R surpasses the Lenovo Legion Slim 5 in terms of general use due to its more powerful CPU, larger storage, and superior screen quality reflected in higher pixel density and color space coverage, though at the expense of some portability and with slightly shorter battery life. On the other hand, while the Lenovo Legion Slim 5 has a less robust CPU and less impressive screen, it compensates with better portability due to its lighter weight and longer battery life, alongside commendable keyboard and heat management.
Gaming and AI
8.7/10
7.7/10
8.9/10
OVERALL GPU SCORE
8.4/10
2560 x 1440
RESOLUTION
1920 x 1200
240Hz
REFRESH RATE
144Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
8.7/10
FAN NOISE SCORE
6.5/10
The Eluktronics Mech-15 G3R is very good for gaming and AI, while the Lenovo Legion Slim 5 is good.
PerfectRec’s Gaming and AI Score strongly emphasizes graphics processing capability, while also taking into account other factors that impact suitability for gaming and AI work.
Engineering and Design
8.7/10
8.0/10
9.1/10
OVERALL CPU SCORE
8.3/10
8.9/10
OVERALL GPU SCORE
8.4/10
16.0 GB
RAM
16.0 GB
The Eluktronics Mech-15 G3R and Lenovo Legion Slim 5 are both very good for engineering and design, though the Eluktronics Mech-15 G3R is somewhat better.
The Eluktronics Mech-15 G3R offers top-tier CPU and GPU capabilities, ample RAM, and high-quality screen resolution, which are essential for demanding engineering software and graphics-intensive tasks. The Lenovo Legion Slim 5, while also suitable for engineering, provides a balance with somewhat better portability and a comfortable keyboard for long coding sessions, though it may compromise slightly on raw performance and screen quality compared to the Mech-15.
Content Creation
8.4/10
7.5/10
9.1/10
OVERALL CPU SCORE
8.3/10
2560 x 1440
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Eluktronics Mech-15 G3R is very good for content creation, while the Lenovo Legion Slim 5 is good.
PerfectRec’s Content Creation Score takes into account the many different features of the laptop that make it more or less suitable for photo editing, video editing and other content creation tasks.
Software Development
8.1/10
7.4/10
9.1/10
OVERALL CPU SCORE
8.3/10
16.0 GB
RAM
16.0 GB
2560 x 1440
RESOLUTION
1920 x 1200
9.0/10
KEYBOARD QUALITY SCORE
8.5/10
The Eluktronics Mech-15 G3R is very good for software development, while the Lenovo Legion Slim 5 is good.
PerfectRec’s Software Development Score takes into account the many different features of the laptop that make it more or less suitable for software developers.
Screen Quality
8.4/10
7.2/10
15.6in
SIZE
16.0in
2560 x 1440
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
144Hz
350.0 nits
BRIGHTNESS
300.0 nits
The Eluktronics Mech-15 G3R has a better screen than the Lenovo Legion Slim 5 for general use, gaming and AI, engineering and design, software development, and content creation.
When evaluating laptops for general use, the Eluktronics Mech-15 G3R stands out with its vibrant display and crisp resolution, which combined with high brightness, makes for an excellent viewing experience, whereas the Lenovo Legion Slim 5, with slightly less impressive brightness and resolution, still provides a good visual experience, but may not be as striking. For engineering and design, the Eluktronics offers a wider range of colors due to better coverage of color gamuts like DCI-P3 and Adobe RGB, which is crucial for precision in visual work, while the Lenovo offers decent color reproduction that's adequate for many design tasks but not optimal for those requiring the highest color accuracy. Regarding gaming and 3D applications, however, both laptops fall short with their poor refresh rates, which are essential for smooth, fast-paced visuals; despite having reasonable resolution and panel types, the lack of high refresh rates can lead to less fluid motion and a subpar gaming experience.
Cost
$2,400
$1,000
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Eluktronics Mech-15 G3R has a price of $2,400 and the Lenovo Legion Slim 5 costs $1,000.
The Eluktronics Mech-15 G3R has 6.5 hours of battery life. The Lenovo Legion Slim 5 has 7 hours of battery life.
Battery life estimate is based on a mix of common use patterns. More portable and higher performing laptops tend to have less battery life.
Portability
Good
Fair
15.6in
SIZE
16.0in
4.6 lbs
WEIGHT
5.2 lbs
0.9in
THICKNESS
0.9in
Although they have very similar scores, PerfectRec considers Eluktronics Mech-15 G3R to have good portability, while the Lenovo Legion Slim 5 has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
7.8/10
7.4/10
The Eluktronics Mech-15 G3R and Lenovo Legion Slim 5 both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Give feedback
We’re constantly working to improve.
How the Eluktronics Mech-15 G3R and the Lenovo Legion Slim 5 compare to other laptops
"Everything considered, the XMG Neo 15 (Mech-15 G3R) with RTX 3070 Ti is a great gaming performer. The combination of the Ti graphics card with the new Intel 12th gen CPU is enough to go toe-to-toe, and even slightly pull ahead of the RTX 3080 in most titles, though on games with Ray-Tracing enabled, particularly with graphics set to the maximum and on higher resolutions, the additional VRAM of the RTX 3080 makes a big impact, and the 8GB RTX 3070 Ti machine simply can’t compete, even with the more powerful processor."
"The Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."
Get a great deal on the Eluktronics Mech-15 G3R or the Lenovo Legion Slim 5
About Eluktronics
Eluktronics is a relatively new American gaming laptop company, founded in 2011. They are a reseller for the Taiwanese brand Clevo, who manufacture laptops exclusively and ship them to resellers like Eluktronics who customize them. Eluktronics laptops generally have great hardware specifications for the money, including the CPU, GPU, and RAM. They also feature a relatively clean design by gaming laptop standards, with few logos and discreet colors.
About Lenovo
Lenovo is a Chinese technology company, and one of the largest personal computer vendor. They are well known for a variety of technology products, including laptops. Their consumer series include their entry level IdeaPad and LOQ series and mid-to-high-end Yoga and Legion series. On the business-oriented side, their series include their entry-level ThinkBook series and mid-to-high-end ThinkPad series. Lenovo laptops offer strong performance for reasonable prices, and are often on sale.
This information was produced and vetted by the PerfectRec laptops team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest laptop information and makes it digestible for you.
By the numbers
380
Laptops evaluated
48,640
Laptops stats compiled
13
Proprietary Laptops ratings developed
132,495
Recommendations made
28,708
Consumer hours saved
About the laptop team
Joe Golden, Ph.D
CEO and Laptops Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Craig Russell
Laptops Expert
Craig is a UK-based laptops expert. Craig works in IT, where he recommends and supports laptops and PCs for clients and has been recommending laptops on Reddit for five years.