NVIDIA GeForce RTX 4090 vs NVIDIA A800 SXM4 80 GB. Specifications, performance, tests

Comparison of basic technical data of graphics cards NVIDIA GeForce RTX 4090 and NVIDIA A800 SXM4 80 GB, chip, information processing units.

• Architecture
  Ada Lovelace Ampere
• Based on
  NVIDIA GeForce RTX 4090 -
• CUDA Cores
  16384 -
• GPU Chip
  AD102-300 / AD102-301 (Ada Lovelace) GA100
• Render Output Units
  192 160
• RT Cores
  128 -
• Shader
  16384 -
• Streaming Multiprocessors
  128 -
• Texture Units
  512 432
• Execution Units
  - 6912
• L1 Cache
  - 192 KB
• L2 Cache
  - 40 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 0.255 GB/s
• Memory Bus
  384 bit 5120 bit
• Memory Clock
  1313 MHz 1593 MHz
• Memory Data Rate
  21 Gbps -
• Memory Size
  24 GB 80 GB
• Memory Type
  GDDR6X HBM2e

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

• Base Clock
  2230 MHz 1275 MHz
• Boost Clock
  2520 MHz 1410 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) -
• TDP
  450 W 400 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 A800 SXM4 80 GB.

• 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 -
• DVI Ports
  - -
• HDCP Version
  2.3 -
• HDMI Ports
  1 × HDMI 2.1 -
• Max. Displays
  4 1
• 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 No
• 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
  - 8.0
• OpenCL
  - 3.0

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 -
• Slot Size
  3 PCIe-Slots IGP
• Weight
  - -
• Width
  61 mm -

Comparison of interfaces and release dates for GPU NVIDIA A800 SXM4 80 GB 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 7 nm
• Release date
  Q4/2022 Q3/2022

• FP16 (theoretical)
  - 77.97 TFLOPS (4:1)
• FP32 (theoretical)
  - 19.49 TFLOPS
• FP64 (theoretical)
  - 9.746 TFLOPS (1:2)
• Pixel Rate
  - 225.6 GPixel/s
• Texture Rate
  - 609.1 GTexel/s