Compare Logitech G512 vs Logitech G915 Lightspeed

P1 Logitech G512
P2 Logitech G915 Lightspeed

Comparison Takeaways

Logitech G512

Where It Has the Edge

  • key spacing is 5.0 vs 3.3. Key spacing receives strong praise from one reviewer who needed no adjustment and found it spot on.
  • keycap quality is 3.7 vs 2.7. Keycap quality is mixed: reviewers liked the soft or sturdy texture, but one called the ABS caps average...
  • value for money is 4.4 vs 3.4. Value for money is positive overall, with reviewers calling it a strong value, worth the cost, or highly...
  • passthrough features is 3.2 vs 2.3. Passthrough features are mixed: reviewers liked the convenience, but repeatedly criticized USB 2.0 speed, dual USB use, or...

Logitech G915 Lightspeed

Where It Has the Edge

  • connectivity is 4.9 vs 2.3. Reviewers consistently liked the mix of Lightspeed, Bluetooth, wired use, and fast device switching, with only minor caveats...
  • reliability is 4.4 vs 2.0. Reliability is strong in long-term evidence and TKL use, although one first-use wake issue created a negative first...
  • volume control is 4.7 vs 2.5. The volume wheel is a standout feature, widely praised for its feel and smoothness, with only minor complaints...
  • media controls is 4.2 vs 2.3. Media controls are generally valued, though some reviewers criticize the rubber buttons as mushy, cheap, or inconsistent at...
Average score
Product 1: Logitech G512
3.9
Product 2: Logitech G915 Lightspeed
4.2
acoustics
Product 1: Logitech G512
4.3

Acoustics are mostly liked by reviewers who enjoy the click or switch sound, though this overlaps with noise concerns for shared spaces.

Product 2: Logitech G915 Lightspeed
5.0

One reviewer specifically praised the clicky sound, treating the key acoustics as a standout part of the typing experience.

actuation consistency
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
3.8

Evidence is split: one reviewer liked the clear, consistent clicky actuation, while another struggled to sense the exact registration point.

backlight brightness
Product 1: Logitech G512
4.3

Backlight brightness is rated well because reviewers found it bright, clean, vibrant, or subtle without becoming blinding.

Product 2: Logitech G915 Lightspeed
4.8

Reviewers generally found the backlighting bright, with praise for vivid illumination even when running wirelessly.

battery life
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
4.7

Battery life is one of the strongest points, repeatedly described as solid, commendable, impressive, exceptional, or long-lasting even with RGB enabled.

build quality
Product 1: Logitech G512
4.6

Build quality is one of the clearest strengths, with reviewers repeatedly describing the keyboard as sturdy, solid, rock-solid, or exceptional.

Product 2: Logitech G915 Lightspeed
4.9

Reviewers strongly praised the premium, solid construction, frequently describing the keyboard as sturdy, durable, tank-like, or a real step up.

cable quality
Product 1: Logitech G512
2.7

Cable quality is mostly criticized for being thick, stiff, bulky, or non-detachable, though one reviewer liked the cable-routing chambers.

Product 2: Logitech G915 Lightspeed
2.4

Cable and charging feedback is mixed: the braided cable is praised, but multiple reviewers criticize the micro-USB charging port as cheap or outdated.

compatibility
Product 1: Logitech G512
4.0

Compatibility earns limited positive support through LIGHTSYNC, which one reviewer called a cool cross-device or media-sync feature.

Product 2: Logitech G915 Lightspeed
4.5

One reviewer positively framed the device-switching use case as helpful for smart TVs and other devices.

connectivity
Product 1: Logitech G512
2.3

Connectivity is a recurring drawback because several reviewers disliked the two-USB requirement, large cable bundle, or non-detachable cable.

Product 2: Logitech G915 Lightspeed
4.9

Reviewers consistently liked the mix of Lightspeed, Bluetooth, wired use, and fast device switching, with only minor caveats about Bluetooth latency.

customization options
Product 1: Logitech G512
4.8

Customization options beyond basic lighting are praised as fun and flexible, especially the freedom to create effects or tune settings.

Product 2: Logitech G915 Lightspeed
4.5

Customization is viewed positively, with reviewers highlighting many assignment, lighting, and software options.

design aesthetics
Product 1: Logitech G512
4.5

Design aesthetics are consistently praised for being sleek, simple, premium-looking, understated, and less gaudy than many gaming keyboards.

Product 2: Logitech G915 Lightspeed
4.9

The design receives broad praise for looking sleek, mature, slim, attractive, and premium rather than overly gamer-styled.

desk space efficiency
Product 1: Logitech G512
4.5

Desk space efficiency is praised for a full-size board because one reviewer found little wasted space on the keyboard deck.

Product 2: Logitech G915 Lightspeed
4.3

Tenkeyless coverage highlights major mouse-space gains, while the full-size model is seen as less desk-friendly because of its length.

durability
Product 1: Logitech G512
4.5

Durability impressions are positive, with reviewers tying sturdiness and premium materials to longer-term confidence.

Product 2: Logitech G915 Lightspeed
4.8

Durability evidence is mostly strong, including rough household use, long-term daily use, and no major failures over time.

ergonomics
Product 1: Logitech G512
2.5

Ergonomics draw criticism for sharp edges, limited foot-angle choices, and an elevation that was not high enough for some users.

Product 2: Logitech G915 Lightspeed
4.2

Ergonomics are mostly positive because of the low profile and adjustable feet, though one reviewer felt the keyboard needed tilt to feel right.

extra gaming features
Product 1: Logitech G512
4.5

Extra gaming features are praised where anti-ghosting or game-mode functions were described as reliable and useful.

Product 2: Logitech G915 Lightspeed
4.3

Game mode and G-key functions are considered useful, especially for locking keys or mapping game/streaming actions.

frame rigidity
Product 1: Logitech G512
4.4

Frame rigidity is strong across reviews, with little flex and a sturdy desk presence.

Product 2: Logitech G915 Lightspeed
4.6

The frame is generally praised for rigidity and low flex, though one long-term reviewer noticed a slight bend that did not affect use.

gaming performance
Product 1: Logitech G512
4.7

Gaming performance is strong in the evidence, with reviewers reporting no performance penalty, quick double-taps, and superb gaming response.

Product 2: Logitech G915 Lightspeed
4.4

Gaming evidence is positive overall, with reviewers calling it responsive and easy to use in games, though some saw little measurable stat improvement.

keycap quality
Product 1: Logitech G512
3.7

Keycap quality is mixed: reviewers liked the soft or sturdy texture, but one called the ABS caps average and not special.

Product 2: Logitech G915 Lightspeed
2.7

Keycap quality is the most consistent hardware concern, with complaints about marks, wear, wobble, thinness, small caps, and proprietary replacement issues.

key responsiveness
Product 1: Logitech G512
4.9

Key responsiveness is consistently praised, with reviewers calling the keys responsive, precise, or satisfying in use.

Product 2: Logitech G915 Lightspeed
4.8

Reviewers repeatedly describe the low-profile switches as zippy, responsive, fast, and comparable to wired responsiveness.

key spacing
Product 1: Logitech G512
5.0

Key spacing receives strong praise from one reviewer who needed no adjustment and found it spot on.

Product 2: Logitech G915 Lightspeed
3.3

Key spacing is mixed: close keys helped one reviewer settle in, but another found them easier to hit accidentally.

key stability
Product 1: Logitech G512
3.5

Large-key stability is acceptable but not flawless, with one reviewer noting slight rattle while still calling the bigger keys stable.

Product 2: Logitech G915 Lightspeed
2.9

Key stability is mixed-to-weak, with praise for stable typing in some reviews but complaints about rattle, wobble, and cheap-feeling keycaps in others.

latency
Product 1: Logitech G512
4.5

Latency impressions are positive, with reviewers saying performance felt fast and one calling the switch response extremely quick.

Product 2: Logitech G915 Lightspeed
5.0

Latency is a major strength, with reviewers repeatedly saying lag was imperceptible, nonexistent, or indistinguishable from wired use.

layout options
Product 1: Logitech G512
4.5

Layout options receive narrow but positive support from one reviewer who praised the standard bottom row for easier keycap changes.

Product 2: Logitech G915 Lightspeed
3.8

Layout feedback is mixed: tenkeyless versions improve compactness, while some reviewers disliked the large full-size footprint.

legend visibility
Product 1: Logitech G512
3.2

Legend visibility is mixed, with complaints about unlit secondary functions but one review praising clean, bright legends.

Product 2: Logitech G915 Lightspeed
2.8

Legend visibility is a weakness where mentioned, with complaints about small legends or secondary characters not shining through.

macro customization
Product 1: Logitech G512
4.5

Macro customization is praised by one reviewer who framed programmable macros as a useful gaming feature.

Product 2: Logitech G915 Lightspeed
4.4

Macro support is widely praised through G keys, profile layers, software assignments, and on-the-fly recording, with some limits on TKL/F-key mapping.

materials quality
Product 1: Logitech G512
4.6

Materials quality is strongly praised, especially the aluminum top plate and premium, sleek feel.

Product 2: Logitech G915 Lightspeed
4.3

Materials are mostly praised for aluminum, brushed-metal, and premium feel, but one reviewer disliked the sharp frame edges.

media controls
Product 1: Logitech G512
2.3

Media controls are a weakness because reviewers disliked the lack of dedicated media keys and reliance on Fn-key combinations.

Product 2: Logitech G915 Lightspeed
4.2

Media controls are generally valued, though some reviewers criticize the rubber buttons as mushy, cheap, or inconsistent at the edges.

noise level
Product 1: Logitech G512
3.3

Noise level is highly context-dependent: clicky switches are satisfying but can annoy others, while tactile or brown variants are quieter.

Product 2: Logitech G915 Lightspeed
3.6

Noise opinions depend on switch choice: clicky switches are quieter than some mechanical boards but still too loud for shared spaces in one review.

onboard memory
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
4.1

Onboard memory is useful for profiles, but implementation can feel counterintuitive or limited in software.

passthrough features
Product 1: Logitech G512
3.2

Passthrough features are mixed: reviewers liked the convenience, but repeatedly criticized USB 2.0 speed, dual USB use, or a failed passthrough unit.

Product 2: Logitech G915 Lightspeed
2.3

USB passthrough is a recurring absence, with reviewers noting or expecting it at this high price.

per-key lighting control
Product 1: Logitech G512
4.5

Per-key lighting control is praised in the IGN review for allowing individual key color selection.

Product 2: Logitech G915 Lightspeed
5.0

Per-key lighting control is praised when discussed, including fully programmable RGB and per-key color choices.

polling rate
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
5.0

Polling-rate evidence is positive, with 1ms/1,000Hz behavior tied directly to imperceptible lag and fast wireless performance.

portability
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
3.7

Portability is mixed: the TKL model and dongle storage help, while the full-size board is too long to carry easily.

profile management
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
4.0

Profile switching is useful, but one reviewer found the onboard profile workflow counterintuitive.

reliability
Product 1: Logitech G512
2.0

Reliability has limited negative evidence from one reviewer who had a static/passthrough issue and replaced the unit.

Product 2: Logitech G915 Lightspeed
4.4

Reliability is strong in long-term evidence and TKL use, although one first-use wake issue created a negative first impression.

RGB customization
Product 1: Logitech G512
4.5

RGB customization is a major strength, with reviewers praising lighting software, many effects, per-game effects, and Screen Sampler-style controls.

Product 2: Logitech G915 Lightspeed
4.9

RGB customization is a major strength, with praise for extensive effects, per-key control, downloadable designs, and broad color options.

RGB lighting quality
Product 1: Logitech G512
4.3

RGB lighting quality is generally praised as great, vibrant, and not intrusive, though GX Blue lighting is described as less even than Romer-G.

Product 2: Logitech G915 Lightspeed
4.3

Lighting quality is generally praised as vivid and bright, though several reviews mention bleed, small legends, or less sharp illumination.

size and form factor
Product 1: Logitech G512
2.8

Size and form factor are mixed because the compact full-size design saves deck space, but full-size layout frustrated tenkeyless and small-desk users.

Product 2: Logitech G915 Lightspeed
4.6

The thin form factor is heavily praised, but the full-size model is criticized by some for being very large.

software quality
Product 1: Logitech G512
3.9

Software quality is mixed-positive overall: several found it easy or intuitive, while one reported bugs and another disliked vague icons.

Product 2: Logitech G915 Lightspeed
4.1

Software feedback is split: many find G Hub easy, refined, and powerful, while others call it complex, dreadful, or counterintuitive.

stabilizer quality
Product 1: Logitech G512
3.5

Stabilizer quality is acceptable but not premium, with slight rattle on larger keys despite decent stability.

Product 2: Logitech G915 Lightspeed
No score yet
switch feel
Product 1: Logitech G512
3.8

Switch feel is the biggest split: GX Blue is praised as clicky and satisfying, while Romer-G variants draw criticism for mushiness or scratchiness.

Product 2: Logitech G915 Lightspeed
4.4

Switch feel is mostly praised for low-profile speed, tactile/clicky feel, and typing enjoyment, with isolated complaints about uncanny or insufficient clickiness.

switch options
Product 1: Logitech G512
4.6

Reviewers repeatedly value having multiple switch choices, with several praising Logitech for offering tactile, linear, and clicky options.

Product 2: Logitech G915 Lightspeed
4.6

Reviewers appreciate having linear, tactile, and clicky options, with several noting the variants help match user preference.

typing comfort
Product 1: Logitech G512
3.8

Typing comfort is mixed: several reviewers typed comfortably, but one strongly disliked the tiring Romer-G feel.

Product 2: Logitech G915 Lightspeed
4.6

Typing comfort is a strong point thanks to the low profile, stable feel, and reduced wrist angle.

typing feel
Product 1: Logitech G512
4.4

Typing feel trends positive, with reviewers describing the board as satisfying, substantial, and enjoyable to type on.

Product 2: Logitech G915 Lightspeed
4.3

Typing feel is broadly positive and often called smooth, snappy, or enjoyable, though some reviewers needed adjustment or disliked the low-profile feel.

value for money
Product 1: Logitech G512
4.4

Value for money is positive overall, with reviewers calling it a strong value, worth the cost, or highly recommendable at the price.

Product 2: Logitech G915 Lightspeed
3.4

Value is the main tradeoff: reviewers often admire the keyboard but repeatedly caution that the price is steep.

volume control
Product 1: Logitech G512
2.5

Volume control is criticized for lacking a more direct onboard control or dial.

Product 2: Logitech G915 Lightspeed
4.7

The volume wheel is a standout feature, widely praised for its feel and smoothness, with only minor complaints about delay or lack of tactility.

wireless performance
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
4.8

Wireless performance is one of the clearest strengths, with many reviewers describing Lightspeed as wired-like, reliable, fast, and lag-free.

wrist rest quality
Product 1: Logitech G512
No score yet
Product 2: Logitech G915 Lightspeed
3.1

Wrist-rest feedback is mixed: many reviewers dislike that none is included, while others say the low profile reduces the need for one.