NVIDIA A40 PCIe vs AMD Radeon RX 6800 3456SP
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Unknown
Generation
Tesla
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1305 MHz
1700 MHz
Boost Clock
1740 MHz
2250 MHz
Memory Clock
1812 MHz
2000 MHz
Memory
Memory Size
48GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
384bit
256bit
Bandwidth
695.8GB/s
512.0GB/s
Render Config
SM Count
84
—
Shading Units
10752
3456
TMUs
336
216
ROPs
112
96
Tensor Cores
336
—
RT Cores
84
54
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
6 MB
4 MB
Compute Units
—
54
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
194.9 GPixel/s
216.0 GPixel/s
Texture Rate
584.6 GTexel/s
486.0 GTexel/s
FP16 (half)
37.42 TFLOPS
31.10 TFLOPS
FP32 (float)
37.42 TFLOPS
15.55 TFLOPS
FP64 (double)
584.6 GFLOPS
972.0 GFLOPS
Graphics Processor
GPU Name
GA102
Navi 21
Architecture
Ampere
RDNA 2.0
Foundry
Samsung
TSMC
Process Size
8 nm
7 nm
Transistors
28.3 billion
26.8 billion
Die Size
628 mm²
520 mm²
GPU Variant
—
Navi 21 ES(215-121000066)
Board Design
TDP
300W
250W
Suggested PSU
700 W
600 W
Outputs
3x DisplayPort 1.4a
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
8-pin EPS
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.3
1.3
CUDA
8.6
—
Shader Model
6.6
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.