AMD Radeon RX 580X Mobile vs AMD Radeon 8040S
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
Jan 2025
Generation
Mobility Radeon
Navi Mobile
Type
Mobile
Integrated
Bus Interface
MXM-B (3.0)
PCIe 5.0 x16
Clock Speeds
Base Clock
1000 MHz
1295 MHz
Boost Clock
1077 MHz
2800 MHz
Memory Clock
2000 MHz
System Shared
Memory
Memory Size
8GB
System Shared
Memory Type
GDDR5
System Shared
Memory Bus
256bit
System Shared
Bandwidth
256.0GB/s
System Dependent
Render Config
Compute Units
36
16
Shading Units
2304
1024
TMUs
144
64
ROPs
32
32
L1 Cache
16 KB (per CU)
—
L2 Cache
2 MB
8 MB
RT Cores
—
16
L3 Cache
—
64 MB
Theoretical Performance
Pixel Rate
34.46 GPixel/s
89.60 GPixel/s
Texture Rate
155.1 GTexel/s
179.2 GTexel/s
FP16 (half)
4.963 TFLOPS
11.47 TFLOPS
FP32 (float)
4.963 TFLOPS
5.734 TFLOPS
FP64 (double)
310.2 GFLOPS
179.2 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Strix Halo
GPU Variant
Polaris 20M XT
—
Architecture
GCN 4.0
RDNA 3.5
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
4 nm
Transistors
5.7 billion
Unknown
Die Size
232 mm²
308 mm²
Board Design
TDP
100W
55W
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.3
Shader Model
6.4
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.