NVIDIA GeForce RTX 4090 vs NVIDIA L40G. Specifications, performance, tests

Comparison of basic technical data of graphics cards NVIDIA GeForce RTX 4090 and NVIDIA L40G, chip, information processing units.

• Architecture
  Ada Lovelace Ada Lovelace
• Based on
  NVIDIA GeForce RTX 4090 -
• CUDA Cores
  16384 -
• GPU Chip
  AD102-300 / AD102-301 (Ada Lovelace) AD102
• Render Output Units
  192 192
• RT Cores
  128 142
• Shader
  16384 -
• Streaming Multiprocessors
  128 -
• Texture Units
  512 568
• Execution Units
  - 18176
• L1 Cache
  - 128 KB
• L2 Cache
  - 48 MB

Video memory capacity, type, bus width and bandwidth describe different properties. These values alone do not determine graphics performance.

• Memory Bandwidth
  1008 GB/s 864 GB/s
• Memory Bus
  384 bit 384 bit
• Memory Clock
  1313 MHz 2250 MHz
• Memory Data Rate
  21 Gbps 18 Gbps
• Memory Size
  24 GB 24 GB
• Memory Type
  GDDR6X GDDR6

Published GPU clock frequencies describe different operating modes. Clock speed alone does not determine graphics performance.

• Base Clock
  2230 MHz 1005 MHz
• Boost Clock
  2520 MHz 2475 MHz
• Game Clock
  - -
• Overclocking
  Yes -

Graphics card power limits and recommended system power supply describe different specifications.

• Maximum GPU Temperature
  90 °C -
• Maximum Junction Temperature
  90 °C -
• System Power Supply
  850 W (System power requirement) 700 W (PSU recommendation)
• TDP
  450 W 300 W
• TDP (up)
  450 W-25 % -
• Total Graphics Power
  450 W -

Types and sizes of coolers for graphics card cooling system NVIDIA GeForce RTX 4090 and NVIDIA L40G.

• Cooler-Type
  Air cooling -
• Fan-Type
  Axial -
• Fan 1
  2 x 110 mm -
• Fan 2
  - -
• Noise (Idle)
  0 dB / Silent -
• Noise (Load)
  39 dB -

Connectivity and connections.

• DisplayPort Ports
  3 × DisplayPort 3 × DisplayPort 1.4a
• DVI Ports
  - -
• HDCP Version
  2.3 -
• HDMI Ports
  1 × HDMI 2.1 1 × HDMI 2.1
• Max. Displays
  4 4
• Other Display Outputs (unparsed)
  HDMI -
• PCIe Interface
  PCIe 4.0 x16 PCIe 4.0 x16
• Power Connectors
  3x PCIe 8-pin cables (adapter in box) OR 1x 450 W or greater PCIe Gen 5 cable 1x 16-pin
• USB-C Ports
  - -
• VGA Ports
  - -

Technical data that is used to its full potential in computer games.

• DirectX
  12_2 (Ultimate) 12.2
• DLSS / FSR
  Yes -
• LED
  No LED lighting -
• Max. resolution
  7680 × 4320 3840 × 2160
• Raytracing
  Yes -
• CUDA
  - 8.9
• OpenCL
  - 3.0
• OpenGL
  - 4.6
• Shader Model
  - 6.7
• Vulkan
  - 1.3

Built-in support for video and image compression standards.

• AV1
  Decode -
• h264
  Decode / Encode -
• h265 / HEVC
  Decode / Encode -
• VP8
  Decode -
• VP9
  Decode -

The difference in size, weight and slot of the compared devices

• Height
  137 mm -
• Length
  304 mm 267 mm
• Slot Size
  3 PCIe-Slots Dual-slot
• Weight
  - -
• Width
  61 mm 111 mm

Comparison of interfaces and release dates for GPU NVIDIA L40G and NVIDIA GeForce RTX 4090.

• Documents
  data sheet -
• Launch Price (historical)
  1,599 $ (Reference) -
• Manufacturer specification scope
  NVIDIA Founders Edition/reference design. Clock specifications apply to gaming use. AIB shipping specifications and complete-system power needs may differ. -
• Part Number
  - -
• Process Technology
  4 nm 4 nm
• Release date
  Q4/2022 Q3/2022

• FP16 (theoretical)
  - 89.97 TFLOPS (1:1)
• FP32 (theoretical)
  - 89.97 TFLOPS
• FP64 (theoretical)
  - 1,406 GFLOPS (1:64)
• Pixel Rate
  - 475.2 GPixel/s
• Texture Rate
  - 1,406 GTexel/s