NVIDIA A800 PCIe 40 GB vs NVIDIA A800 PCIe 80 GB. Specifications, performance, tests

Comparison of basic technical data of graphics cards NVIDIA A800 PCIe 40 GB and NVIDIA A800 PCIe 80 GB, chip, information processing units.

• GPU Chip
  GA100 GA100
• Execution units
  6912 6912
• Render Output Units
  160 160
• Texture Units
  432 432
• L1 Cache
  192 KB 192 KB
• L2 Cache
  40 MB 80 MB

Comparison of the amount of memory on board graphics cards. The more the better.

• Memory Size
  40 GB 80 GB
• Memory Type
  HBM2e HBM2e
• Memory Clock
  1.215 GHz 1.512 GHz
• Memory Speed
  2.4 Gbps 3 Gbps
• Memory Bandwith
  1,555 GB/s 1,935 GB/s
• Memory Interface
  5120 bit 5120 bit

Let's compare the memory frequency of graphics cards NVIDIA A800 PCIe 40 GB and NVIDIA A800 PCIe 80 GB. The higher the better.

• Base Clock
  0.765 GHz 1.065 GHz
• Boost Clock
  1.41 GHz 1.41 GHz

Connectors, the number of thermal watts emitted in normal mode and at overclocking.

• TDP
  250 W 250 W
• Power Connectors
  8-pin EPS 8-pin EPS
• Slot
  Dual-slot Dual-slot
• Suggested PSU
  600 W 600 W

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

• Max. resolution
  3840x2160 3840x2160
• DirectX
  12.2 12.2
• OpenGL
  4.6 4.6
• OpenCL
  3.0 3.0
• CUDA
  8.0 8.0

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

• Length
  267 mm 267 mm
• Width
  112 mm 112 mm

Comparison of interfaces and release dates for GPU NVIDIA A800 PCIe 80 GB and NVIDIA A800 PCIe 40 GB.

• Architecture
  Ampere Ampere
• GPU Interface
  PCIe 4.0 x16 PCIe 4.0 x16
• Structure size
  7 nm 7 nm
• Release date
  Q3/2022 Q3/2022

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