GeForce 8400 GS PCI vs Radeon RX 6800 XT
We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS PCI and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce 8400 GS PCI 's Advantages
Lower TDP (25W vs 300W)
Radeon RX 6800 XT 's Advantages
Released 12 years and 10 months late
Boost Clock2250MHz
More VRAM (16GB vs 512GB)
Larger VRAM bandwidth (512.0GB/s vs 5.328GB/s)
4600 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8400 GS PCI
22
Radeon RX 6800 XT
+94172%
20740
Graphics Card
Dec 2007
Release Date
Oct 2020
GeForce 8
Generation
Navi II
Desktop
Type
Desktop
PCI
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1825 MHz
-
Boost Clock
2250 MHz
333 MHz
Memory Clock
2000 MHz
Memory
512MB
Memory Size
16GB
DDR2
Memory Type
GDDR6
64bit
Memory Bus
256bit
5.328GB/s
Bandwidth
512.0GB/s
Render Config
-
Compute Units
72
1
SM Count
-
8
Shading Units
4608
4
TMUs
288
4
ROPs
128
-
RT Cores
72
-
L1 Cache
128 KB per Array
16 KB
L2 Cache
4 MB
-
L3 Cache
128 MB
Theoretical Performance
2.268 GPixel/s
Pixel Rate
288.0 GPixel/s
2.268 GTexel/s
Texture Rate
648.0 GTexel/s
-
FP16 (half)
41.47 TFLOPS
22.40 GFLOPS
FP32 (float)
20.74 TFLOPS
-
FP64 (double)
1296 GFLOPS
Board Design
25W
TDP
300W
200 W
Suggested PSU
700 W
1x S-Video
1x DMS-59
Outputs
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
None
Power Connectors
2x 8-pin
Graphics Processor
G98
GPU Name
Navi 21
G98-400-U2
GPU Variant
Navi 21 XT
(215-121000177)
Tesla
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
65 nm
Process Size
7 nm
0.21 billion
Transistors
26.8 billion
86 mm²
Die Size
520 mm²
Graphics Features
11.1 (10_0)
DirectX
12 Ultimate (12_2)
3.3
OpenGL
4.6
1.1
OpenCL
2.1
N/A
Vulkan
1.3
1.1
CUDA
-
4.0
Shader Model
6.5