AMD Radeon RX 7900 XT vs NVIDIA GeForce 8400 GS PCI Rev. 2
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT 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
AMD Radeon RX 7900 XT 's Advantages
Released 15 years and 7 months late
Boost Clock2394MHz
More VRAM (20GB vs 512GB)
Larger VRAM bandwidth (800.0GB/s vs 8.000GB/s)
5360 additional rendering cores
NVIDIA GeForce 8400 GS PCI Rev. 2 's Advantages
Lower TDP (40W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7900 XT
+131900%
51.48 TFLOPS
GeForce 8400 GS PCI Rev. 2
0.039 TFLOPS
Graphics Card
Nov 2022
Release Date
Apr 2007
Navi III
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCI
Clock Speeds
1387 MHz
Base Clock
-
2394 MHz
Boost Clock
-
2500 MHz
Memory Clock
500 MHz
Memory
20GB
Memory Size
512MB
GDDR6
Memory Type
DDR3
320bit
Memory Bus
64bit
800.0GB/s
Bandwidth
8.000GB/s
Render Config
84
Compute Units
-
-
SM Count
2
5376
Shading Units
16
336
TMUs
8
192
ROPs
4
-
-
-
84
RT Cores
-
256 KB per Array
L1 Cache
-
6 MB
L2 Cache
32 KB
80 MB
L3 Cache
-
Theoretical Performance
459.6 GPixel/s
Pixel Rate
2.080 GPixel/s
804.4 GTexel/s
Texture Rate
4.160 GTexel/s
103.0 TFLOPS
FP16 (half)
-
51.48 TFLOPS
FP32 (float)
39.36 GFLOPS
1.609 TFLOPS
FP64 (double)
-
Board Design
300W
TDP
40W
700 W
Suggested PSU
200 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
Outputs
1x DVI
1x HDMI
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 31
GPU Name
GT218
Navi 31 XT
(215-145000156)
GPU Variant
-
RDNA 3.0
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
57.7 billion
Transistors
0.26 billion
529 mm²
Die Size
57 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
11.1 (10_1)
4.6
OpenGL
3.3
2.2
OpenCL
1.1
1.3
Vulkan
N/A
-
CUDA
1.2
6.7
Shader Model
4.1
