Product Compare

NVIDIA Tesla K40c vs NVIDIA RTX A2000

GPU GPU
Graphics Card
Release Date Oct 2013 Aug 2021
Generation Tesla Quadro Ampere
Type Professional Professional
Bus Interface PCIe 3.0 x16 PCIe 4.0 x16
Clock Speeds
Base Clock 745 MHz 562 MHz
Boost Clock 876 MHz 1200 MHz
Memory Clock 1502 MHz 1500 MHz
Memory
Memory Size 12GB 6GB
Memory Type GDDR5 GDDR6
Memory Bus 384bit 192bit
Bandwidth 288.4GB/s 288.0GB/s
Render Config
Shading Units 2880 3328
TMUs 240 104
ROPs 48 48
L1 Cache 16 KB (per SMX) 128 KB (per SM)
L2 Cache 1536 KB 3 MB
SM Count 26
Tensor Cores 104
RT Cores 26
Theoretical Performance
Pixel Rate 52.56 GPixel/s 57.60 GPixel/s
Texture Rate 210.2 GTexel/s 124.8 GTexel/s
FP32 (float) 5.046 TFLOPS 7.987 TFLOPS
FP64 (double) 1.682 TFLOPS 124.8 GFLOPS
FP16 (half) 7.987 TFLOPS
Graphics Processor
GPU Name GK180 GA106
GPU Variant GK180-890-A1 GA106-850-A1
Architecture Kepler Ampere
Foundry TSMC Samsung
Process Size 28 nm 8 nm
Transistors 7.08 billion 12 billion
Die Size 561 mm² 276 mm²
Board Design
TDP 245W 70W
Suggested PSU 550 W 250 W
Outputs No outputs 4x mini-DisplayPort 1.4a
Power Connectors 1x 6-pin + 1x 8-pin None
Graphics Features
DirectX 12 (11_0) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 3.0 3.0
Vulkan 1.1 1.3
CUDA 3.5 8.6
Shader Model 5.1 6.7