Radeon Pro Vega 20 vs Radeon RX 6600S
We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 4GB VRAM Radeon RX 6600S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6600S Advantages
Released 3 years and 2 months late
Boost Clock has increased by 56% (2000MHz vs 1283MHz)
Larger VRAM bandwidth (224.0GB/s vs 189.4GB/s)
512 additional rendering cores
Lower TDP (80W vs 100W)
Score
Benchmark
FP32 (float)
Radeon Pro Vega 20
3284
Radeon RX 6600S
+118%
7168
3DMark Time Spy
Radeon Pro Vega 20
2596
Radeon RX 6600S
+196%
7700
3DMark Time Spy Extreme
Radeon Pro Vega 20
1211
Radeon RX 6600S
+179%
3389
Graphics Card
Nov 2018
Release Date
Jan 2022
Radeon Pro Mac
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
815 MHz
Base Clock
1700 MHz
1283 MHz
Boost Clock
2000 MHz
740 MHz
Memory Clock
1750 MHz
Memory
4GB
Memory Size
4GB
HBM2
Memory Type
GDDR6
1024bit
Memory Bus
128bit
189.4GB/s
Bandwidth
224.0GB/s
Render Config
20
Compute Units
28
1280
Shading Units
1792
80
TMUs
112
32
ROPs
64
-
RT Cores
28
16 KB (per CU)
L1 Cache
128 KB per Array
1024 KB
L2 Cache
2 MB
-
L3 Cache
32 MB
Theoretical Performance
41.06 GPixel/s
Pixel Rate
128.0 GPixel/s
102.6 GTexel/s
Texture Rate
224.0 GTexel/s
6.569 TFLOPS
FP16 (half)
14.34 TFLOPS
3.284 TFLOPS
FP32 (float)
7.168 TFLOPS
205.3 GFLOPS
FP64 (double)
448.0 GFLOPS
Board Design
100W
TDP
80W
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
Vega 12
GPU Name
Navi 23
Vega 12 XTA
GPU Variant
-
GCN 5.0
Architecture
RDNA 2.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
7 nm
Unknown
Transistors
11.06 billion
Unknown
Die Size
237 mm²
Graphics Features
12 (12_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.2
Vulkan
1.3
6.3
Shader Model
6.5
