NVIDIA A40 PCIe vs AMD Radeon RX 6900 XT
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Oct 2020
Generation
Tesla
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1305 MHz
1825 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
5120
TMUs
336
320
ROPs
112
128
Tensor Cores
336
—
RT Cores
84
80
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
6 MB
4 MB
Compute Units
—
80
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
194.9 GPixel/s
288.0 GPixel/s
Texture Rate
584.6 GTexel/s
720.0 GTexel/s
FP16 (half)
37.42 TFLOPS
46.08 TFLOPS
FP32 (float)
37.42 TFLOPS
23.04 TFLOPS
FP64 (double)
584.6 GFLOPS
1440.0 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 XTX(215-121000167)
Board Design
TDP
300W
300W
Suggested PSU
700 W
700 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
1.4
CUDA
8.6
—
Shader Model
6.6
6.8
Benchmark
3DMark Time Spy
—
20,764
▲ Specs Compare
Data sourced from official specifications and benchmark tests.