NVIDIA H800 PCIe 80 GB vs AMD Radeon RX 6600 XT
GPU · Specs Compare
Graphics Card
Release Date
Mar 2023
Jul 2021
Generation
Tesla Hopper
Navi II
Type
AI GPU
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1095 MHz
1968 MHz
Boost Clock
1755 MHz
2589 MHz
Memory Clock
1593 MHz
2000 MHz
Memory
Memory Size
80GB
8GB
Memory Type
HBM2e
GDDR6
Memory Bus
5120bit
128bit
Bandwidth
2039GB/s
256.0GB/s
Render Config
SM Count
114
—
Shading Units
14592
2048
TMUs
456
128
ROPs
24
64
Tensor Cores
456
—
L1 Cache
256 KB (per SM)
128 KB per Array
L2 Cache
50 MB
2 MB
Compute Units
—
32
RT Cores
—
32
L3 Cache
—
32 MB
Theoretical Performance
Pixel Rate
42.12 GPixel/s
165.7 GPixel/s
Texture Rate
800.3 GTexel/s
331.4 GTexel/s
FP16 (half)
204.9 TFLOPS
21.21 TFLOPS
FP32 (float)
51.22 TFLOPS
10.60 TFLOPS
FP64 (double)
25.61 TFLOPS
662.8 GFLOPS
Graphics Processor
GPU Name
GH100
Navi 23
Architecture
Hopper
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
7 nm
Transistors
80 billion
11.06 billion
Die Size
814 mm²
237 mm²
GPU Variant
—
Navi 23 XT(215-130000006)
Board Design
TDP
350W
160W
Suggested PSU
750 W
450 W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
1x 16-pin
1x 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
9.0
—
Shader Model
N/A
6.7
Benchmark
3DMark Time Spy
—
9,656
3DMark Time Spy Extreme
—
4,399
3DMark Speed Way
—
1,675
Battlefield 5 1080p
—
144
Shadow of the Tomb Raider 2160p
—
38
Cyberpunk 2077 2160p
—
29
Shadow of the Tomb Raider 1440p
—
72
Cyberpunk 2077 1440p
—
36
Shadow of the Tomb Raider 1080p
—
119
Battlefield 5 2160p
—
58
Blender
—
1,213
Cyberpunk 2077 1080p
—
58
Battlefield 5 1440p
—
111
GTA 5 2160p
—
61
GTA 5 1440p
—
82
GTA 5 1080p
—
149
▲ Specs Compare
Data sourced from official specifications and benchmark tests.