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GPU Comparison
AMD Radeon RX 6600S vs AMD Radeon HD 8670A
AMD Radeon RX 6600S vs AMD Radeon HD 8670A
VS
AMD Radeon RX 6600S
AMD Radeon HD 8670A
We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600S 's Advantages
Released 8 years and 11 months late
Boost Clock2000MHz
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (224.0GB/s vs 16.00GB/s)
1408 additional rendering cores
AMD Radeon HD 8670A 's Advantages
Lower TDP (45W vs 80W)
Score
Benchmark
FP32 (float)
Radeon RX 6600S
+1454%
7.168 TFLOPS
Radeon HD 8670A
0.461 TFLOPS
Radeon RX 6600S
VS
Radeon HD 8670A
Graphics Card
Jan 2022
Release Date
Feb 2013
Mobility Radeon
Generation
All-In-One
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
MXM-A (3.0)
Clock Speeds
1700 MHz
Base Clock
-
2000 MHz
Boost Clock
-
1750 MHz
Memory Clock
1000 MHz
Memory
4GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
128bit
Memory Bus
64bit
224.0GB/s
Bandwidth
16.00GB/s
Render Config
-
SM Count
-
28
Compute Units
6
1792
Shading Units
384
112
TMUs
24
64
ROPs
8
-
Tensor Cores
-
28
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
128 KB
Theoretical Performance
128.0 GPixel/s
Pixel Rate
4.800 GPixel/s
224.0 GTexel/s
Texture Rate
14.40 GTexel/s
14.34 TFLOPS
FP16 (half)
-
7.168 TFLOPS
FP32 (float)
460.8 GFLOPS
448.0 GFLOPS
FP64 (double)
28.80 GFLOPS
Graphics Processor
Navi 23
GPU Name
Mars
-
GPU Variant
Mars XT
RDNA 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
11.06 billion
Transistors
0.95 billion
237 mm²
Die Size
77 mm²
Board Design
80W
TDP
45W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.3
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
5.1
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7
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8
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