GeForce RTX 4090 vs L40

NVIDIA

GeForce RTX 4090

2022Core: 2235 MHzBoost: 2520 MHz

Popular choices:

VS

L40

2022Core: 735 MHzBoost: 2490 MHz

Popular choices:

Performance Spectrum - GPU

About G3D Mark

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GeForce RTX 4090

2022

Why buy it

  • +16.9% higher PassMark G3D performance.
  • Costs $29,401 less on MSRP ($1,599 MSRP vs $31,000 MSRP).
  • Delivers 2166.4% more G3D Mark for each dollar spent, at 23.8 vs 1.1 G3D/$ ($1,599 MSRP vs $31,000 MSRP).
  • Access to a newer frame-generation stack with DLSS 3.5 + Frame Generation (2023).
  • More future proof: Ada Lovelace (2022−2024) on 5nm with a newer platform for upcoming games.

Trade-offs

  • Less VRAM, with 24 GB vs 48 GB for high-resolution textures and newer games.
  • 50% higher power demand at 450W vs 300W.
  • 13.9% longer card at 304mm vs 267mm.

L40

2022

Why buy it

  • 100% more VRAM for high-resolution textures and newer games (48 GB vs 24 GB).
  • Draws 300W instead of 450W, a 150W reduction.
  • Measures 267mm instead of 304mm, a 37mm shorter card that is more SFF-friendly.

Trade-offs

  • Lower PassMark G3D performance (32,601 vs 38,112).
  • No equivalent frame-generation stack like DLSS 3.5 + Frame Generation (2023).
  • Weaker long-term outlook: GeForce RTX 4090 is the safer future-proof pick thanks to newer hardware and better gaming feature support.
  • 1838.7% HIGHER MSRP
    $31,000 MSRPvs$1,599 MSRP
  • Lower G3D Mark per dollar, at 1.1 vs 23.8 G3D/$ ($31,000 MSRP vs $1,599 MSRP).

Quick Answers

So, is GeForce RTX 4090 better than L40?
Yes. GeForce RTX 4090 is the better GPU overall here. You are getting 16.9% higher PassMark G3D performance and DLSS 3.5 + Frame Generation.
Which one is more future-proof for 2026 and beyond?
GeForce RTX 4090 is the more future-proof choice for 2026 and beyond. You are getting 16.9% more raw performance headroom and better upscaling support with DLSS 3.5 Super Resolution (2023) instead of no meaningful modern upscaling stack and better frame-generation support with DLSS 3.5 + Frame Generation (2023) instead of no meaningful modern upscaling stack. That broader feature stack should age better as more games lean on modern upscaling and frame-generation support.
Which one is the smarter buy today, not just the cheaper card?
GeForce RTX 4090 is the smarter buy today, but it is not as lopsided as a simple winner label makes it sound. GeForce RTX 4090 is about $29,401 cheaper on MSRP at $1,599 MSRP versus $31,000 MSRP, and you are getting 16.9% higher G3D Mark. It also leads G3D-per-dollar by 2166.4%. That is why the better overall card still comes out as the smarter buy today, not just the faster one.
Is L40 still worth buying for gaming in 2026?
Yes. L40 is still a strong modern gaming GPU: it is excellent for 1080p and 1440p maxed-out gaming, and still very capable for 4K in many titles. It remains a good buy when you can get it meaningfully cheaper than the alternative around $31,000 MSRP, even if GeForce RTX 4090 is still the cleaner recommendation on overall value today.

Games Benchmarks

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 9800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

Path of Exile 2

Path of Exile 2

PresetGeForce RTX 4090L40
1080p
low283 FPS281 FPS
medium262 FPS252 FPS
high224 FPS207 FPS
ultra196 FPS131 FPS
1440p
low261 FPS251 FPS
medium217 FPS211 FPS
high173 FPS152 FPS
ultra156 FPS95 FPS
4K
low180 FPS116 FPS
medium149 FPS97 FPS
high114 FPS66 FPS
ultra102 FPS57 FPS
Counter-Strike 2

Counter-Strike 2

PresetGeForce RTX 4090L40
1080p
low910 FPS525 FPS
medium726 FPS407 FPS
high567 FPS310 FPS
ultra478 FPS268 FPS
1440p
low728 FPS440 FPS
medium607 FPS351 FPS
high494 FPS273 FPS
ultra397 FPS215 FPS
4K
low396 FPS233 FPS
medium335 FPS183 FPS
high309 FPS162 FPS
ultra265 FPS134 FPS
League of Legends

League of Legends

PresetGeForce RTX 4090L40
1080p
low999 FPS999 FPS
medium999 FPS999 FPS
high999 FPS978 FPS
ultra858 FPS734 FPS
1440p
low988 FPS970 FPS
medium902 FPS880 FPS
high832 FPS734 FPS
ultra643 FPS550 FPS
4K
low580 FPS569 FPS
medium504 FPS493 FPS
high455 FPS437 FPS
ultra388 FPS367 FPS
Valorant

Valorant

PresetGeForce RTX 4090L40
1080p
low999 FPS492 FPS
medium971 FPS430 FPS
high855 FPS383 FPS
ultra764 FPS293 FPS
1440p
low830 FPS346 FPS
medium728 FPS311 FPS
high641 FPS273 FPS
ultra561 FPS208 FPS
4K
low606 FPS229 FPS
medium538 FPS197 FPS
high480 FPS156 FPS
ultra420 FPS119 FPS

Technical Specifications

Side-by-side comparison of GeForce RTX 4090 and L40

NVIDIA

GeForce RTX 4090

The GeForce RTX 4090 is manufactured by NVIDIA. It was released in September 20 2022. It features the Ada Lovelace architecture. The core clock ranges from 2235 MHz to 2520 MHz. It has 16384 shading units. The thermal design power (TDP) is 450W. Manufactured using 5 nm process technology. It features 128 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 38,112 points. Launch price was $1,599.

NVIDIA

L40

The L40 is manufactured by NVIDIA. It was released in October 13 2022. It features the Ada Lovelace architecture. The core clock ranges from 735 MHz to 2490 MHz. It has 18176 shading units. The thermal design power (TDP) is 300W. Manufactured using 4 nm process technology. It features 142 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 32,601 points.

Graphics Performance

In G3D Mark, the GeForce RTX 4090 scores 38,112 versus the L40's 32,601 — the GeForce RTX 4090 leads by 16.9%. The GeForce RTX 4090 is built on Ada Lovelace while the L40 uses Ada Lovelace, both on 5 nm vs 4 nm. Shader units: 16,384 (GeForce RTX 4090) vs 18,176 (L40). Raw compute: 82.58 TFLOPS (GeForce RTX 4090) vs 90.52 TFLOPS (L40). Boost clocks: 2520 MHz vs 2490 MHz. Ray tracing: 128 RT cores (GeForce RTX 4090) vs 142 (L40) with 512 Tensor cores vs 568.

FeatureGeForce RTX 4090L40
G3D Mark Score
38,112+17%
32,601
Architecture
Ada Lovelace
Ada Lovelace
Process Node
5 nm
4 nm
Shading Units
16384
18176+11%
Compute (TFLOPS)
82.58 TFLOPS
90.52 TFLOPS+10%
Boost Clock
2520 MHz+1%
2490 MHz
ROPs
176
192+9%
TMUs
512
568+11%
L1 Cache
16 MB
17.8 MB+11%
L2 Cache
72 MB
96 MB+33%
Ray Tracing Cores
128
142+11%
Tensor Cores
512
568+11%

Advanced Features (DLSS/FSR)

A critical advantage for the GeForce RTX 4090 is support for DLSS 3.5 + Frame Generation. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The L40 lacks specific hardware/driver support for this native frame generation tier.The GeForce RTX 4090 gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The L40 relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.

FeatureGeForce RTX 4090L40
Upscaling Tech
DLSS 3.5 Super Resolution
Upscaling support
Frame Generation
DLSS 3.5 + Frame Generation
Not Supported
Ray Reconstruction
Yes (DLSS 3.5)
No
Low Latency
NVIDIA Reflex
Standard
💾

Video Memory (VRAM)

The GeForce RTX 4090 comes with 24 GB of VRAM, while the L40 has 48 GB. The L40 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 1008 GB/s (GeForce RTX 4090) vs 960 GB/s (L40) — a 5% advantage for the GeForce RTX 4090. Bus width: 384-bit vs 384-bit. L2 Cache: 72 MB (GeForce RTX 4090) vs 96 MB (L40) — the L40 has significantly larger on-die cache to reduce VRAM reliance.

FeatureGeForce RTX 4090L40
VRAM Capacity
24 GB
48 GB+100%
Memory Type
GDDR6X
GDDR6
Memory Bandwidth
1008 GB/s+5%
960 GB/s
Bus Width
384-bit
384-bit
L2 Cache
72 MB
96 MB+33%
🖥️

Display & API Support

DirectX support: 12.2 (GeForce RTX 4090) vs 12.2 (L40). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.

FeatureGeForce RTX 4090L40
DirectX
12.2
12.2
Vulkan
1.3
1.3
OpenGL
4.6
4.6
Max Displays
4
4
🎬

Media & Encoding

Hardware encoder: 8th Gen NVENC (2x) (GeForce RTX 4090) vs NVENC 8th Gen (L40). Decoder: 5th Gen NVDEC vs NVDEC 5th Gen. Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4090) vs AV1,HEVC,H.264,VP9 (L40).

FeatureGeForce RTX 4090L40
Encoder
8th Gen NVENC (2x)
NVENC 8th Gen
Decoder
5th Gen NVDEC
NVDEC 5th Gen
Codecs
MPEG-2,H.264,HEVC,VP9,AV1
AV1,HEVC,H.264,VP9
🔌

Power & Dimensions

The GeForce RTX 4090 draws 450W versus the L40's 300W — a 40% difference. The L40 is more power-efficient. Recommended PSU: 1000W (GeForce RTX 4090) vs 750W (L40). Power connectors: 16-pin (12VHPWR) vs 16-pin. Card length: 304mm vs 267mm, occupying 3 vs 2 slots. Typical load temperature: 80°C vs 80°C.

FeatureGeForce RTX 4090L40
TDP
450W
300W-33%
Recommended PSU
1000W
750W-25%
Power Connector
16-pin (12VHPWR)
16-pin
Length
304mm
267mm
Height
137mm
111mm
Slots
3
2-33%
Temp (Load)
80°C
80°C
Perf/Watt
84.7
108.7+28%
💰

Value Analysis

The GeForce RTX 4090 launched at $1599 MSRP, while the L40 launched at $31000. The GeForce RTX 4090 costs 94.8% less ($29401 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 23.8 (GeForce RTX 4090) vs 1.1 (L40) — the GeForce RTX 4090 offers 2063.6% better value.

FeatureGeForce RTX 4090L40
MSRP
$1599-95%
$31000
Performance per Dollar
23.8+2064%
1.1
Codename
AD102
AD102
Release
September 20 2022
October 13 2022
Ranking
#4
#61