L40 vs RTX PRO 4000 Blackwell SFF Edition

L40

2022Core: 735 MHzBoost: 2490 MHz

Popular choices:

VS
NVIDIA

RTX PRO 4000 Blackwell SFF Edition

2025Core: 577 MHzBoost: 1432 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.

L40

2022

Why buy it

  • +8.6% higher PassMark G3D performance.
  • 100% more VRAM for high-resolution textures and newer games (48 GB vs 24 GB).
  • More future proof: Ada Lovelace (2022−2024) on 4nm with a newer platform for upcoming games.

Trade-offs

  • Weaker long-term outlook: RTX PRO 4000 Blackwell SFF Edition is the safer future-proof pick thanks to newer hardware and better gaming feature support.
  • 1450.8% HIGHER MSRP
    $31,000 MSRPvs$1,999 MSRP
  • Lower G3D Mark per dollar, at 1.1 vs 15.0 G3D/$ ($31,000 MSRP vs $1,999 MSRP).
  • 328.6% higher power demand at 300W vs 70W.
  • 59.9% longer card at 267mm vs 167mm.

RTX PRO 4000 Blackwell SFF Edition

2025

Why buy it

  • Costs $29,001 less on MSRP ($1,999 MSRP vs $31,000 MSRP).
  • Delivers 1328% more G3D Mark for each dollar spent, at 15.0 vs 1.1 G3D/$ ($1,999 MSRP vs $31,000 MSRP).
  • More future proof: Blackwell 2.0 (2025−2026) on 5nm with a newer platform for upcoming games.
  • Draws 70W instead of 300W, a 230W reduction.
  • Measures 167mm instead of 267mm, a 100mm shorter card that is more SFF-friendly.

Trade-offs

  • Lower PassMark G3D performance (30,020 vs 32,601).
  • Less VRAM, with 24 GB vs 48 GB for high-resolution textures and newer games.

Quick Answers

So, is L40 better than RTX PRO 4000 Blackwell SFF Edition?
Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 32,601 vs 30,020 in G3D Mark. The bigger reason to prefer L40 is the overall package: you are getting no meaningful modern upscaling stack.
Which one is more future-proof for 2026 and beyond?
RTX PRO 4000 Blackwell SFF Edition is the more future-proof choice for 2026 and beyond. You are getting a newer 2025 generation instead of 2022. That makes it the safer long-run choice for modern games.
Which one is the smarter buy today, not just the cheaper card?
L40 is about 1450.8% more expensive on MSRP at $31,000 MSRP versus $1,999 MSRP, and you are getting 8.6% higher G3D Mark. RTX PRO 4000 Blackwell SFF Edition still holds the G3D-per-dollar lead, so the performance win comes with a real value premium. If you are comfortable paying the premium for the stronger gaming result, L40 is the one to buy. If staying closer to budget matters more, RTX PRO 4000 Blackwell SFF Edition still makes more sense on price alone and remains capable enough for modern gaming.
When does RTX PRO 4000 Blackwell SFF Edition make more sense than L40?
Yes. RTX PRO 4000 Blackwell SFF Edition is still an excellent gaming GPU in 2026: it is excellent for 1080p and 1440p maxed-out gaming, and still very capable for 4K in many titles. It makes more sense if your priority is newer architecture, lower power draw (70W vs 300W), future-proofing, and staying closer to $1,999 MSRP more than squeezing out the extra headroom of L40. The trade-off is that L40 currently gives you 8.6% higher G3D Mark. RTX PRO 4000 Blackwell SFF Edition still holds the G3D-per-dollar lead, so the performance win comes with a real value premium.

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

PresetL40RTX PRO 4000 Blackwell SFF Edition
1080p
low281 FPS171 FPS
medium252 FPS153 FPS
high207 FPS127 FPS
ultra131 FPS93 FPS
1440p
low251 FPS151 FPS
medium211 FPS129 FPS
high152 FPS92 FPS
ultra95 FPS66 FPS
4K
low116 FPS75 FPS
medium97 FPS64 FPS
high66 FPS44 FPS
ultra57 FPS40 FPS
Counter-Strike 2

Counter-Strike 2

PresetL40RTX PRO 4000 Blackwell SFF Edition
1080p
low525 FPS288 FPS
medium407 FPS231 FPS
high310 FPS183 FPS
ultra268 FPS155 FPS
1440p
low440 FPS223 FPS
medium351 FPS171 FPS
high273 FPS140 FPS
ultra215 FPS114 FPS
4K
low233 FPS125 FPS
medium183 FPS100 FPS
high162 FPS87 FPS
ultra134 FPS70 FPS
League of Legends

League of Legends

PresetL40RTX PRO 4000 Blackwell SFF Edition
1080p
low999 FPS777 FPS
medium999 FPS644 FPS
high978 FPS549 FPS
ultra734 FPS481 FPS
1440p
low970 FPS571 FPS
medium880 FPS475 FPS
high734 FPS401 FPS
ultra550 FPS341 FPS
4K
low569 FPS407 FPS
medium493 FPS336 FPS
high437 FPS274 FPS
ultra367 FPS217 FPS
Valorant

Valorant

PresetL40RTX PRO 4000 Blackwell SFF Edition
1080p
low492 FPS292 FPS
medium430 FPS252 FPS
high383 FPS209 FPS
ultra293 FPS184 FPS
1440p
low346 FPS230 FPS
medium311 FPS201 FPS
high273 FPS169 FPS
ultra208 FPS145 FPS
4K
low229 FPS141 FPS
medium197 FPS119 FPS
high156 FPS96 FPS
ultra119 FPS80 FPS

Technical Specifications

Side-by-side comparison of L40 and RTX PRO 4000 Blackwell SFF Edition

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.

NVIDIA

RTX PRO 4000 Blackwell SFF Edition

The RTX PRO 4000 Blackwell SFF Edition is manufactured by NVIDIA. It was released in August 11 2025. It features the Blackwell 2.0 architecture. The core clock ranges from 577 MHz to 1432 MHz. It has 8960 shading units. The thermal design power (TDP) is 70W. Manufactured using 5 nm process technology. It features 70 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 30,020 points.

Graphics Performance

In G3D Mark, the L40 scores 32,601 versus the RTX PRO 4000 Blackwell SFF Edition's 30,020 — the L40 leads by 8.6%. The L40 is built on Ada Lovelace while the RTX PRO 4000 Blackwell SFF Edition uses Blackwell 2.0, both on 4 nm vs 5 nm. Shader units: 18,176 (L40) vs 8,960 (RTX PRO 4000 Blackwell SFF Edition). Raw compute: 90.52 TFLOPS (L40) vs 25.66 TFLOPS (RTX PRO 4000 Blackwell SFF Edition). Boost clocks: 2490 MHz vs 1432 MHz. Ray tracing: 142 RT cores (L40) vs 70 (RTX PRO 4000 Blackwell SFF Edition) with 568 Tensor cores vs 280.

FeatureL40RTX PRO 4000 Blackwell SFF Edition
G3D Mark Score
32,601+9%
30,020
Architecture
Ada Lovelace
Blackwell 2.0
Process Node
4 nm
5 nm
Shading Units
18176+103%
8960
Compute (TFLOPS)
90.52 TFLOPS+253%
25.66 TFLOPS
Boost Clock
2490 MHz+74%
1432 MHz
ROPs
192+100%
96
TMUs
568+103%
280
L1 Cache
17.8 MB+102%
8.8 MB
L2 Cache
96 MB+100%
48 MB
Ray Tracing Cores
142+103%
70
Tensor Cores
568+103%
280

Advanced Features (DLSS/FSR)

The RTX PRO 4000 Blackwell SFF Edition 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.

FeatureL40RTX PRO 4000 Blackwell SFF Edition
Upscaling Tech
Upscaling support
Upscaling support
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
Standard
NVIDIA Reflex
💾

Video Memory (VRAM)

The L40 comes with 48 GB of VRAM, while the RTX PRO 4000 Blackwell SFF Edition has 24 GB. The L40 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 384-bit vs 256-bit. L2 Cache: 96 MB (L40) vs 48 MB (RTX PRO 4000 Blackwell SFF Edition) — the L40 has significantly larger on-die cache to reduce VRAM reliance.

FeatureL40RTX PRO 4000 Blackwell SFF Edition
VRAM Capacity
48 GB+100%
24 GB
Memory Type
GDDR6
GDDR6
Bus Width
384-bit+50%
256-bit
L2 Cache
96 MB+100%
48 MB
🖥️

Display & API Support

DirectX support: 12.2 (L40) vs 12 Ultimate (RTX PRO 4000 Blackwell SFF Edition). Vulkan: 1.3 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.

FeatureL40RTX PRO 4000 Blackwell SFF Edition
DirectX
12.2+2%
12 Ultimate
Vulkan
1.3
1.4+8%
OpenGL
4.6
4.6
Max Displays
4
4
🎬

Media & Encoding

Hardware encoder: NVENC 8th Gen (L40) vs NVENC 9th Gen (RTX PRO 4000 Blackwell SFF Edition). Decoder: NVDEC 5th Gen vs NVDEC 6th Gen. Supported codecs: AV1,HEVC,H.264,VP9 (L40) vs H.264,H.265,AV1 (RTX PRO 4000 Blackwell SFF Edition).

FeatureL40RTX PRO 4000 Blackwell SFF Edition
Encoder
NVENC 8th Gen
NVENC 9th Gen
Decoder
NVDEC 5th Gen
NVDEC 6th Gen
Codecs
AV1,HEVC,H.264,VP9
H.264,H.265,AV1
🔌

Power & Dimensions

The L40 draws 300W versus the RTX PRO 4000 Blackwell SFF Edition's 70W — a 124.3% difference. The RTX PRO 4000 Blackwell SFF Edition is more power-efficient. Recommended PSU: 750W (L40) vs 650W (RTX PRO 4000 Blackwell SFF Edition). Power connectors: 16-pin vs PCIe-powered. Card length: 267mm vs 167mm, occupying 2 vs 2 slots. Typical load temperature: 80°C vs 72°C.

FeatureL40RTX PRO 4000 Blackwell SFF Edition
TDP
300W
70W-77%
Recommended PSU
750W
650W-13%
Power Connector
16-pin
PCIe-powered
Length
267mm
167mm
Height
111mm
69mm
Slots
2
2
Temp (Load)
80°C
72°C-10%
Perf/Watt
108.7
428.9+295%
💰

Value Analysis

The L40 launched at $31000 MSRP, while the RTX PRO 4000 Blackwell SFF Edition launched at $1999. The RTX PRO 4000 Blackwell SFF Edition costs 93.6% less ($29001 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 1.1 (L40) vs 15.0 (RTX PRO 4000 Blackwell SFF Edition) — the RTX PRO 4000 Blackwell SFF Edition offers 1263.6% better value. The RTX PRO 4000 Blackwell SFF Edition is the newer GPU (2025 vs 2022).

FeatureL40RTX PRO 4000 Blackwell SFF Edition
MSRP
$31000
$1999-94%
Performance per Dollar
1.1
15.0+1264%
Codename
AD102
GB203
Release
October 13 2022
August 11 2025
Ranking
#61
#17