AMD Radeon RX 7900 XT vs NVIDIA H800 PCIe 80 GB
GPU Specs Compare
Graphics Card
Release Date
Nov 2022
Mar 2023
Generation
Navi III
Tesla Hopper
Type
Desktop
AI GPU
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1387 MHz
1095 MHz
Boost Clock
2394 MHz
1755 MHz
Memory Clock
2500 MHz
1593 MHz
Memory
Memory Size
20GB
80GB
Memory Type
GDDR6
HBM2e
Memory Bus
320bit
5120bit
Bandwidth
800.0GB/s
2039GB/s
Render Config
Compute Units
84
-
Shading Units
5376
14592
TMUs
336
456
ROPs
192
24
RT Cores
84
-
L1 Cache
256 KB per Array
256 KB (per SM)
L2 Cache
6 MB
50 MB
L3 Cache
80 MB
-
SM Count
-
114
Tensor Cores
-
456
Theoretical Performance
Pixel Rate
459.6 GPixel/s
42.12 GPixel/s
Texture Rate
804.4 GTexel/s
800.3 GTexel/s
FP16 (half)
103.0 TFLOPS
204.9 TFLOPS
FP32 (float)
51.48 TFLOPS
51.22 TFLOPS
FP64 (double)
1.609 TFLOPS
25.61 TFLOPS
Graphics Processor
GPU Name
Navi 31
GH100
GPU Variant
Navi 31 XT(215-145000156)
-
Architecture
RDNA 3.0
Hopper
Foundry
TSMC
TSMC
Process Size
5 nm
4 nm
Transistors
57.7 billion
80 billion
Die Size
529 mm²
814 mm²
Board Design
TDP
300W
350W
Suggested PSU
700 W
750 W
Outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
No outputs
Power Connectors
2x 8-pin
1x 16-pin
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.2
3.0
Vulkan
1.3
N/A
Shader Model
6.8
N/A
CUDA
-
9.0
📊 Benchmark
3DMark Time Spy
26,829
-
3DMark Time Spy Extreme
13,130
-
3DMark Speed Way
5,364
-