GeForce RTX 4080 vs GeForce 8400 GS PCI Rev. 2
We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 and 512MB VRAM GeForce 8400 GS PCI Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4080 's Advantages
Released 15 years and 5 months late
Boost Clock2505MHz
More VRAM (16GB vs 512GB)
Larger VRAM bandwidth (716.8GB/s vs 8.000GB/s)
9712 additional rendering cores
GeForce 8400 GS PCI Rev. 2 's Advantages
Lower TDP (40W vs 320W)
Score
Benchmark
FP32 (float)
GeForce RTX 4080
+124874%
48740
GeForce 8400 GS PCI Rev. 2
39
Graphics Card
Sep 2022
Release Date
Apr 2007
GeForce 40
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCI
Clock Speeds
2205 MHz
Base Clock
-
2505 MHz
Boost Clock
-
1400 MHz
Memory Clock
500 MHz
Memory
16GB
Memory Size
512MB
GDDR6X
Memory Type
DDR3
256bit
Memory Bus
64bit
716.8GB/s
Bandwidth
8.000GB/s
Render Config
76
SM Count
2
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
32 KB
Theoretical Performance
280.6 GPixel/s
Pixel Rate
2.080 GPixel/s
761.5 GTexel/s
Texture Rate
4.160 GTexel/s
48.74 TFLOPS
FP16 (half)
-
48.74 TFLOPS
FP32 (float)
39.36 GFLOPS
761.5 GFLOPS
FP64 (double)
-
Board Design
320W
TDP
40W
700 W
Suggested PSU
200 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI
1x VGA
1x 16-pin
Power Connectors
None
Graphics Processor
AD103
GPU Name
GT218
AD103-300-A1
GPU Variant
-
Ada Lovelace
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
45.9 billion
Transistors
0.26 billion
379 mm²
Die Size
57 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
11.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.3
Vulkan
N/A
8.9
CUDA
1.2
6.7
Shader Model
4.1
