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GPU Comparison
NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce 8400M GS
NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce 8400M GS
VS
NVIDIA GeForce RTX 4090 Max-Q
NVIDIA GeForce 8400M GS
We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 256MB VRAM GeForce 8400M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 4090 Max-Q 's Advantages
Released 15 years and 8 months late
Boost Clock1455MHz
Larger VRAM bandwidth (448.0GB/s vs 6.400GB/s)
9712 additional rendering cores
NVIDIA GeForce 8400M GS 's Advantages
Lower TDP (11W vs 80W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090 Max Q
+108784%
28.31 TFLOPS
GeForce 8400M GS
0.026 TFLOPS
GeForce RTX 4090 Max Q
VS
GeForce 8400M GS
Graphics Card
Jan 2023
Release Date
May 2007
GeForce 40 Mobile
Generation
GeForce 8M
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
MXM-I
Clock Speeds
930 MHz
Base Clock
-
1455 MHz
Boost Clock
-
1750 MHz
Memory Clock
400 MHz
Memory
16GB
Memory Size
256MB
GDDR6
Memory Type
DDR2
256bit
Memory Bus
64bit
448.0GB/s
Bandwidth
6.400GB/s
Render Config
76
SM Count
2
-
Compute Units
-
9728
Shading Units
16
304
TMUs
8
112
ROPs
4
304
Tensor Cores
-
76
RT Cores
-
128 KB (per SM)
L1 Cache
-
64 MB
L2 Cache
16 KB
Theoretical Performance
163.0 GPixel/s
Pixel Rate
1.600 GPixel/s
442.3 GTexel/s
Texture Rate
3.200 GTexel/s
28.31 TFLOPS
FP16 (half)
-
28.31 TFLOPS
FP32 (float)
25.60 GFLOPS
442.3 GFLOPS
FP64 (double)
-
Graphics Processor
AD103
GPU Name
G86
GN21-X11
GPU Variant
NB8M-GS
Ada Lovelace
Architecture
Tesla
TSMC
Foundry
TSMC
4 nm
Process Size
80 nm
45.9 billion
Transistors
0.21 billion
379 mm²
Die Size
127 mm²
Board Design
80W
TDP
11W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 Ultimate (12_2)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.3
Vulkan
N/A
8.9
CUDA
1.1
6.7
Shader Model
4.0
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