AMD Radeon RX 6600 LE vs AMD Radeon RX 580X Mobile
GPU · Specs Compare
Graphics Card
Release Date
Dec 2023
Apr 2018
Generation
Navi II
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x8
MXM-B (3.0)
Clock Speeds
Base Clock
1626 MHz
1000 MHz
Boost Clock
2495 MHz
1077 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
8GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
224.0GB/s
256.0GB/s
Render Config
Compute Units
28
36
Shading Units
1792
2304
TMUs
112
144
ROPs
64
32
RT Cores
28
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
2 MB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
159.7 GPixel/s
34.46 GPixel/s
Texture Rate
279.4 GTexel/s
155.1 GTexel/s
FP16 (half)
17.88 TFLOPS
4.963 TFLOPS
FP32 (float)
8.942 TFLOPS
4.963 TFLOPS
FP64 (double)
558.9 GFLOPS
310.2 GFLOPS
Graphics Processor
GPU Name
Navi 23
Polaris 20
GPU Variant
Navi 23 XL(215-130000016)
Polaris 20M XT
Architecture
RDNA 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
11.06 billion
5.7 billion
Die Size
237 mm²
232 mm²
Board Design
TDP
132W
100W
Suggested PSU
300 W
—
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
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
6.7
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.