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GPU Comparison
NVIDIA GeForce GTX 675MX vs NVIDIA GeForce GT 645M
NVIDIA GeForce GTX 675MX vs NVIDIA GeForce GT 645M
VS
NVIDIA GeForce GTX 675MX
NVIDIA GeForce GT 645M
We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 675MX and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 675MX 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 28.80GB/s)
576 additional rendering cores
NVIDIA GeForce GT 645M 's Advantages
Lower TDP (32W vs 100W)
Score
Benchmark
FP32 (float)
GeForce GTX 675MX
+130%
1.256 TFLOPS
GeForce GT 645M
0.544 TFLOPS
GeForce GTX 675MX
VS
GeForce GT 645M
Graphics Card
Oct 2012
Release Date
Oct 2012
GeForce 600M
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
115.2GB/s
Bandwidth
28.80GB/s
Render Config
-
SM Count
-
-
Compute Units
-
960
Shading Units
384
80
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
256 KB
Theoretical Performance
13.08 GPixel/s
Pixel Rate
5.672 GPixel/s
52.32 GTexel/s
Texture Rate
22.69 GTexel/s
-
FP16 (half)
-
1256 GFLOPS
FP32 (float)
544.5 GFLOPS
52.32 GFLOPS
FP64 (double)
22.69 GFLOPS
Graphics Processor
GK104
GPU Name
GK107
N13E-GSR-A2
GPU Variant
N13P-GS
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
1.27 billion
294 mm²
Die Size
118 mm²
Board Design
100W
TDP
32W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.1
3.0
CUDA
3.0
5.1
Shader Model
5.1
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3
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4
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5
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6
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7
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8
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9
NVIDIA GeForce GTX 675MX vs AMD FirePro M7740
10
NVIDIA GeForce GTX 675MX vs NVIDIA GeForce GTX 765M
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