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GPU Comparison
AMD Radeon RX 6450M vs NVIDIA GeForce GT 645M
AMD Radeon RX 6450M vs NVIDIA GeForce GT 645M
VS
AMD Radeon RX 6450M
NVIDIA GeForce GT 645M
We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6450M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6450M 's Advantages
Released 10 years and 3 months late
Boost Clock2460MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (128.0GB/s vs 28.80GB/s)
384 additional rendering cores
NVIDIA GeForce GT 645M 's Advantages
Lower TDP (32W vs 50W)
Score
Benchmark
FP32 (float)
Radeon RX 6450M
+594%
3.779 TFLOPS
GeForce GT 645M
0.544 TFLOPS
Radeon RX 6450M
VS
GeForce GT 645M
Graphics Card
Jan 2023
Release Date
Oct 2012
Navi Mobile
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 4.0 x4
Bus Interface
PCIe 3.0 x16
Clock Speeds
2000 MHz
Base Clock
-
2460 MHz
Boost Clock
-
2000 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
64bit
Memory Bus
128bit
128.0GB/s
Bandwidth
28.80GB/s
Render Config
-
SM Count
-
12
Compute Units
-
768
Shading Units
384
48
TMUs
32
32
ROPs
16
-
Tensor Cores
-
12
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per SMX)
1024 KB
L2 Cache
256 KB
Theoretical Performance
78.72 GPixel/s
Pixel Rate
5.672 GPixel/s
118.1 GTexel/s
Texture Rate
22.69 GTexel/s
7.557 TFLOPS
FP16 (half)
-
3.779 TFLOPS
FP32 (float)
544.5 GFLOPS
236.2 GFLOPS
FP64 (double)
22.69 GFLOPS
Graphics Processor
Navi 24
GPU Name
GK107
Navi 24 XML
GPU Variant
N13P-GS
RDNA 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
6 nm
Process Size
28 nm
5.4 billion
Transistors
1.27 billion
107 mm²
Die Size
118 mm²
Board Design
50W
TDP
32W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.2
OpenCL
3.0
1.3
Vulkan
1.1
-
CUDA
3.0
6.7
Shader Model
5.1
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