Home GPU Comparison AMD Radeon 660M vs AMD Radeon RX 6400

AMD Radeon 660M vs AMD Radeon RX 6400

We compared a Integrated graphics card GPU: 0System Shared VRAM Radeon 660M and a Desktop platform GPU: 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 660M 's Advantages
Lower TDP (15W vs 53W)
AMD Radeon RX 6400 's Advantages
Boost Clock has increased by 22% (2321MHz vs 1900MHz)
384 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon 660M
1.459 TFLOPS
Radeon RX 6400 +144%
3.565 TFLOPS
Blender
Radeon 660M
99
Radeon RX 6400 +228%
325
VS

Graphics Card

Jan 2022
Release Date
Jan 2022
Rembrandt
Generation
Navi II
Integrated
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 4.0 x4

Clock Speeds

1500 MHz
Base Clock
1923 MHz
1900 MHz
Boost Clock
2321 MHz
System Shared
Memory Clock
2000 MHz

Memory

System Shared
Memory Size
4GB
System Shared
Memory Type
GDDR6
System Shared
Memory Bus
64bit
System Dependent
Bandwidth
128.0GB/s

Render Config

-
SM Count
-
6
Compute Units
12
384
Shading Units
768
24
TMUs
48
16
ROPs
32
-
Tensor Cores
-
6
RT Cores
12
128 KB per Array
L1 Cache
128 KB per Array
2 MB
L2 Cache
1024 KB

Theoretical Performance

30.40 GPixel/s
Pixel Rate
74.27 GPixel/s
45.60 GTexel/s
Texture Rate
111.4 GTexel/s
2.918 TFLOPS
FP16 (half)
7.130 TFLOPS
1459 GFLOPS
FP32 (float)
3.565 TFLOPS
91.20 GFLOPS
FP64 (double)
222.8 GFLOPS

Graphics Processor

Rembrandt
GPU Name
Navi 24
-
GPU Variant
Navi 24 XL (215-135000046)
RDNA 2.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
6 nm
Process Size
6 nm
13.1 billion
Transistors
5.4 billion
210 mm²
Die Size
107 mm²

Board Design

15W
TDP
53W
-
Suggested PSU
250 W
No outputs
Outputs
1x HDMI 2.1 1x DisplayPort 1.4a
None
Power Connectors
None

Graphics Features

12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.0
OpenCL
2.2
1.2
Vulkan
1.3
-
CUDA
-
6.5
Shader Model
6.6

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