AMD Radeon RX 580X Mobile vs AMD Radeon RX 6650 XT
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
May 2022
Generation
Mobility Radeon
Navi II
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 4.0 x8
Clock Speeds
Base Clock
1000 MHz
2055 MHz
Boost Clock
1077 MHz
2635 MHz
Memory Clock
2000 MHz
2190 MHz
Memory
Memory Size
8GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
256.0GB/s
280.3GB/s
Render Config
Compute Units
36
32
Shading Units
2304
2048
TMUs
144
128
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
2 MB
2 MB
RT Cores
—
32
L3 Cache
—
32 MB
Theoretical Performance
Pixel Rate
34.46 GPixel/s
168.6 GPixel/s
Texture Rate
155.1 GTexel/s
337.3 GTexel/s
FP16 (half)
4.963 TFLOPS
21.59 TFLOPS
FP32 (float)
4.963 TFLOPS
10.79 TFLOPS
FP64 (double)
310.2 GFLOPS
674.6 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Navi 23
GPU Variant
Polaris 20M XT
Navi 23 KXT(215-130000136)
Architecture
GCN 4.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
7 nm
Transistors
5.7 billion
11.06 billion
Die Size
232 mm²
237 mm²
Board Design
TDP
100W
176W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
Suggested PSU
—
450 W
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
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.