AMD Radeon RX 580 Mobile vs AMD Radeon RX 6450M
GPU · Specs Compare
Graphics Card
Release Date
Apr 2017
Jan 2023
Generation
Mobility Radeon
Navi Mobile
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 4.0 x4
Clock Speeds
Base Clock
1000 MHz
2000 MHz
Boost Clock
1077 MHz
2460 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
64bit
Bandwidth
256.0GB/s
128.0GB/s
Render Config
Compute Units
36
12
Shading Units
2304
768
TMUs
144
48
ROPs
32
32
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
2 MB
1024 KB
RT Cores
—
12
L3 Cache
—
16 MB
Theoretical Performance
Pixel Rate
34.46 GPixel/s
78.72 GPixel/s
Texture Rate
155.1 GTexel/s
118.1 GTexel/s
FP16 (half)
4.963 TFLOPS
7.557 TFLOPS
FP32 (float)
4.963 TFLOPS
3.779 TFLOPS
FP64 (double)
310.2 GFLOPS
236.2 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Navi 24
GPU Variant
Polaris 20M XT
Navi 24 XML
Architecture
GCN 4.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
6 nm
Transistors
5.7 billion
5.4 billion
Die Size
232 mm²
107 mm²
Board Design
TDP
100W
50W
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
2.2
Vulkan
1.2
1.3
Shader Model
6.4
6.7
Benchmark
3DMark Time Spy
3,553
—
3DMark Time Spy Extreme
1,626
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.