NVIDIA H800 PCIe 80 GB vs AMD Radeon RX 7950 XTX
GPU · Specs Compare
Graphics Card
Release Date
Mar 2023
Unknown
Generation
Tesla Hopper
Navi III
Type
AI GPU
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1095 MHz
2200 MHz
Boost Clock
1755 MHz
3300 MHz
Memory Clock
1593 MHz
2500 MHz
Memory
Memory Size
80GB
24GB
Memory Type
HBM2e
GDDR6
Memory Bus
5120bit
384bit
Bandwidth
2039GB/s
960.0GB/s
Render Config
SM Count
114
—
Shading Units
14592
6144
TMUs
456
384
ROPs
24
192
Tensor Cores
456
—
L1 Cache
256 KB (per SM)
256 KB per Array
L2 Cache
50 MB
6 MB
Compute Units
—
96
RT Cores
—
96
L3 Cache
—
96 MB
Theoretical Performance
Pixel Rate
42.12 GPixel/s
633.6 GPixel/s
Texture Rate
800.3 GTexel/s
1267 GTexel/s
FP16 (half)
204.9 TFLOPS
162.2 TFLOPS
FP32 (float)
51.22 TFLOPS
81.10 TFLOPS
FP64 (double)
25.61 TFLOPS
2.534 TFLOPS
Graphics Processor
GPU Name
GH100
Navi 31
Architecture
Hopper
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
4 nm
5 nm
Transistors
80 billion
57.7 billion
Die Size
814 mm²
529 mm²
GPU Variant
—
Navi 31 XTX+
Board Design
TDP
350W
355W
Suggested PSU
750 W
750 W
Outputs
No outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
1x 16-pin
2x 8-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
2.2
Vulkan
N/A
1.3
CUDA
9.0
—
Shader Model
N/A
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.