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GPU Comparison
NVIDIA GeForce GT 645M vs NVIDIA GeForce GT 520M
NVIDIA GeForce GT 645M vs NVIDIA GeForce GT 520M
VS
NVIDIA GeForce GT 645M
NVIDIA GeForce GT 520M
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 645M and 1024MB VRAM GeForce GT 520M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 645M 's Advantages
Released 1 years and 9 months late
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (28.80GB/s vs 12.80GB/s)
336 additional rendering cores
NVIDIA GeForce GT 520M 's Advantages
Lower TDP (12W vs 32W)
Score
Benchmark
FP32 (float)
GeForce GT 645M
+283%
0.544 TFLOPS
GeForce GT 520M
0.142 TFLOPS
GeForce GT 645M
VS
GeForce GT 520M
Graphics Card
Oct 2012
Release Date
Jan 2011
GeForce 600M
Generation
GeForce 500M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
DDR3
128bit
Memory Bus
64bit
28.80GB/s
Bandwidth
12.80GB/s
Render Config
-
SM Count
1
-
Compute Units
-
384
Shading Units
48
32
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
128 KB
Theoretical Performance
5.672 GPixel/s
Pixel Rate
1.480 GPixel/s
22.69 GTexel/s
Texture Rate
5.920 GTexel/s
-
FP16 (half)
-
544.5 GFLOPS
FP32 (float)
142.1 GFLOPS
22.69 GFLOPS
FP64 (double)
11.84 GFLOPS
Graphics Processor
GK107
GPU Name
GF119
N13P-GS
GPU Variant
N12P-GV-B-A1
Kepler
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.27 billion
Transistors
0.292 billion
118 mm²
Die Size
79 mm²
Board Design
32W
TDP
12W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
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