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GPU Comparison
AMD Radeon RX 6600S vs AMD Radeon Pro 555
AMD Radeon RX 6600S vs AMD Radeon Pro 555
VS
AMD Radeon RX 6600S
AMD Radeon Pro 555
We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 2GB VRAM Radeon Pro 555 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600S 's Advantages
Released 4 years and 7 months late
Boost Clock2000MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.0GB/s vs 81.60GB/s)
1024 additional rendering cores
AMD Radeon Pro 555 's Advantages
Lower TDP (75W vs 80W)
Score
Benchmark
FP32 (float)
Radeon RX 6600S
+448%
7.168 TFLOPS
Radeon Pro 555
1.306 TFLOPS
Radeon RX 6600S
VS
Radeon Pro 555
Graphics Card
Jan 2022
Release Date
Jun 2017
Mobility Radeon
Generation
Radeon Pro Mac
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
1700 MHz
Base Clock
-
2000 MHz
Boost Clock
-
1750 MHz
Memory Clock
1275 MHz
Memory
4GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
128bit
224.0GB/s
Bandwidth
81.60GB/s
Render Config
-
SM Count
-
28
Compute Units
12
1792
Shading Units
768
112
TMUs
48
64
ROPs
16
-
Tensor Cores
-
28
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
1024 KB
Theoretical Performance
128.0 GPixel/s
Pixel Rate
13.60 GPixel/s
224.0 GTexel/s
Texture Rate
40.80 GTexel/s
14.34 TFLOPS
FP16 (half)
1306 GFLOPS
7.168 TFLOPS
FP32 (float)
1306 GFLOPS
448.0 GFLOPS
FP64 (double)
81.60 GFLOPS
Graphics Processor
Navi 23
GPU Name
Polaris 21
-
GPU Variant
Polaris 21 PRO
RDNA 2.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
7 nm
Process Size
14 nm
11.06 billion
Transistors
3 billion
237 mm²
Die Size
123 mm²
Board Design
80W
TDP
75W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.3
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
6.4
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