AMD Radeon RX 580X vs AMD Radeon RX 6600S
GPU Specs Compare
Graphics Card
Release Date
Apr 2018
Jan 2022
Generation
Polaris
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1257 MHz
1700 MHz
Boost Clock
1340 MHz
2000 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
256.0GB/s
224.0GB/s
Render Config
Compute Units
36
28
Shading Units
2304
1792
TMUs
144
112
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
2 MB
2 MB
RT Cores
-
28
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
42.88 GPixel/s
128.0 GPixel/s
Texture Rate
193.0 GTexel/s
224.0 GTexel/s
FP16 (half)
6.175 TFLOPS
14.34 TFLOPS
FP32 (float)
6.175 TFLOPS
7.168 TFLOPS
FP64 (double)
385.9 GFLOPS
448.0 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Navi 23
GPU Variant
Polaris 20 XTX(215-0910038)
-
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
185W
80W
Suggested PSU
450 W
-
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
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
6.5
📊 Benchmark
3DMark Time Spy
-
7,700
3DMark Time Spy Extreme
-
3,389