NVIDIA A800 SXM4 80 GB vs AMD Radeon RX 6800 XT
GPU · Specs Compare
Graphics Card
Release Date
Aug 2022
Oct 2020
Generation
Ampere
Navi II
Type
AI GPU
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1155 MHz
1825 MHz
Boost Clock
1410 MHz
2250 MHz
Memory Clock
1593 MHz
2000 MHz
Memory
Memory Size
80GB
16GB
Memory Type
HBM2e
GDDR6
Memory Bus
5120bit
256bit
Bandwidth
2039GB/s
512.0GB/s
Render Config
SM Count
108
—
Shading Units
6912
4608
TMUs
432
288
ROPs
160
128
Tensor Cores
432
—
L1 Cache
192 KB (per SM)
128 KB per Array
L2 Cache
40 MB
4 MB
Compute Units
—
72
RT Cores
—
72
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
225.6 GPixel/s
288.0 GPixel/s
Texture Rate
609.1 GTexel/s
648.0 GTexel/s
FP16 (half)
77.97 TFLOPS
41.47 TFLOPS
FP32 (float)
19.49 TFLOPS
20.74 TFLOPS
FP64 (double)
9.746 TFLOPS
1296 GFLOPS
Graphics Processor
GPU Name
GA100
Navi 21
Architecture
Ampere
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Transistors
54.2 billion
26.8 billion
Die Size
826 mm²
520 mm²
GPU Variant
—
Navi 21 XT(215-121000177)
Board Design
TDP
400W
300W
Suggested PSU
800 W
700 W
Outputs
No outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
None
2x 8-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.3
CUDA
8.0
—
Shader Model
N/A
6.5
Benchmark
3DMark Time Spy
—
19,329
▲ Specs Compare
Data sourced from official specifications and benchmark tests.