Radeon RX 6400 vs Radeon X1550 PCI
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 256MB VRAM Radeon X1550 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Released 15 years late
Boost Clock2321MHz
More VRAM (4GB vs 256GB)
Larger VRAM bandwidth (128.0GB/s vs 4.256GB/s)
768 additional rendering cores
Radeon X1550 PCI 's Advantages
Lower TDP (27W vs 53W)
Score
Graphics Card
Jan 2022
Release Date
Jan 2007
Navi II
Generation
Radeon R500 PCIe
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 1.0 x16
Clock Speeds
1923 MHz
Base Clock
-
2321 MHz
Boost Clock
-
2000 MHz
Memory Clock
266 MHz
Memory
4GB
Memory Size
256MB
GDDR6
Memory Type
DDR2
64bit
Memory Bus
64bit
128.0GB/s
Bandwidth
4.256GB/s
Render Config
12
Compute Units
-
768
Shading Units
-
48
TMUs
4
32
ROPs
4
12
RT Cores
-
128 KB per Array
L1 Cache
-
1024 KB
L2 Cache
-
16 MB
L3 Cache
-
Theoretical Performance
74.27 GPixel/s
Pixel Rate
1.808 GPixel/s
111.4 GTexel/s
Texture Rate
1.808 GTexel/s
7.130 TFLOPS
FP16 (half)
-
3.565 TFLOPS
FP32 (float)
-
222.8 GFLOPS
FP64 (double)
-
Board Design
53W
TDP
27W
250 W
Suggested PSU
200 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
1x DVI
1x VGA
1x S-Video
None
Power Connectors
None
Graphics Processor
Navi 24
GPU Name
RV516
Navi 24 XL
(215-135000046)
GPU Variant
-
RDNA 2.0
Architecture
R500
TSMC
Foundry
UMC
6 nm
Process Size
80 nm
5.4 billion
Transistors
0.107 billion
107 mm²
Die Size
100 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1
2.2
OpenCL
N/A
1.3
Vulkan
N/A
6.7
Shader Model
3.0
