AMD Radeon RX 6800M vs AMD Radeon RX 580X Mobile
GPU Specs Compare
Graphics Card
Release Date
May 2021
Apr 2018
Generation
Mobility Radeon
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
PCIe 4.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
2116 MHz
1000 MHz
Boost Clock
2390 MHz
1077 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
12GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
192bit
256bit
Bandwidth
384.0GB/s
256.0GB/s
Render Config
Compute Units
40
36
Shading Units
2560
2304
TMUs
160
144
ROPs
64
32
RT Cores
40
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
3 MB
2 MB
L3 Cache
96 MB
-
Theoretical Performance
Pixel Rate
153.0 GPixel/s
34.46 GPixel/s
Texture Rate
382.4 GTexel/s
155.1 GTexel/s
FP16 (half)
24.47 TFLOPS
4.963 TFLOPS
FP32 (float)
12.24 TFLOPS
4.963 TFLOPS
FP64 (double)
764.8 GFLOPS
310.2 GFLOPS
Graphics Processor
GPU Name
Navi 22
Polaris 20
GPU Variant
Navi 22 XTM
Polaris 20M XT
Architecture
RDNA 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
17.2 billion
5.7 billion
Die Size
335 mm²
232 mm²
Board Design
TDP
145W
100W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2
Shader Model
6.5
6.4
📊 Benchmark
3DMark Time Spy
11,498
-
3DMark Time Spy Extreme
5,418
-
3DMark Speed Way
2,096
-
Blender
1,568
-