NVIDIA GeForce RTX 3090 vs NVIDIA A800 PCIe 40 GB. Specifications, performance, tests

Comparison of basic technical data of graphics cards NVIDIA GeForce RTX 3090 and NVIDIA A800 PCIe 40 GB, chip, information processing units.

• Architecture
  Ampere Ampere
• CUDA Cores
  10496 -
• Execution Units
  82 6912
• GPU Chip
  GA102-300-A1 GA100
• Render Output Units
  112 160
• Shader
  10496 -
• Texture Units
  328 432
• 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
  936 GB/s 1,555 GB/s
• Memory Bus
  384 bit 5120 bit
• Memory Clock
  1219 MHz 1215 MHz
• Memory Data Rate
  19.5 Gbps 2.4 Gbps
• Memory Size
  24 GB 40 GB
• Memory Type
  GDDR6X HBM2e

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

• Base Clock
  1400 MHz 765 MHz
• Boost Clock
  1700 MHz 1410 MHz

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

• Graphics Card Power
  350 W -
• Maximum GPU Temperature
  93 °C -
• System Power Supply
  750 W (System power requirement) 600 W (PSU recommendation)
• TDP
  350 W 250 W

Connectivity and connections.

• DisplayPort Ports
  3 × DisplayPort -
• HDCP Version
  2.3 -
• Max. Displays
  4 -
• Other Display Outputs (unparsed)
  HDMI -
• PCIe Interface
  PCIe 4.0 x16 PCIe 4.0 x16
• Power Connectors
  2x PCIe 8-pin (adapter to 1x 12-pin included) 8-pin EPS

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

• DirectX
  12_2 12.2
• Max. resolution
  7680 × 4320 3840 × 2160
• OpenCL
  3.0 3.0
• OpenGL
  4.6 4.6
• Shader Model
  6.6 -
• Vulkan
  1.3 -
• CUDA
  - 8.0

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

• Length
  - 267 mm
• Slot Size
  - Dual-slot
• Width
  - 112 mm

Comparison of interfaces and release dates for GPU NVIDIA A800 PCIe 40 GB and NVIDIA GeForce RTX 3090.

• Manufacturer specification scope
  NVIDIA Founders Edition/reference design. Clock specifications apply to gaming use. AIB shipping specifications and complete-system power needs may differ. -
• Process Technology
  8 nm 7 nm
• Release date
  Q3/2020 Q3/2022

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