GeForce GTX 1660 Ti Mobile vs GeForce GT 640M
We compared two Mobile platform GPUs: 6GB VRAM GeForce GTX 1660 Ti Mobile and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 1660 Ti Mobile 's Advantages
Released 7 years and 1 months late
Boost Clock1590MHz
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 28.80GB/s)
1152 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GTX 1660 Ti Mobile
+917%
4884
GeForce GT 640M
480
3DMark Time Spy
GeForce GTX 1660 Ti Mobile
+1575%
5597
GeForce GT 640M
334
3DMark Time Spy Extreme
GeForce GTX 1660 Ti Mobile
+1604%
2574
GeForce GT 640M
151
Graphics Card
Apr 2019
Release Date
Mar 2012
GeForce 16 Mobile
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1455 MHz
Base Clock
-
1590 MHz
Boost Clock
-
1500 MHz
Memory Clock
900 MHz
Memory
6GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
192bit
Memory Bus
128bit
288.0GB/s
Bandwidth
28.80GB/s
Render Config
24
SM Count
-
1536
Shading Units
384
96
TMUs
32
48
ROPs
16
64 KB (per SM)
L1 Cache
16 KB (per SMX)
1536 KB
L2 Cache
256 KB
Theoretical Performance
76.32 GPixel/s
Pixel Rate
5.000 GPixel/s
152.6 GTexel/s
Texture Rate
20.00 GTexel/s
9.769 TFLOPS
FP16 (half)
-
4.884 TFLOPS
FP32 (float)
480.0 GFLOPS
152.6 GFLOPS
FP64 (double)
20.00 GFLOPS
Board Design
Unknown
TDP
32W
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
TU116
GPU Name
GK107
-
GPU Variant
N13P-GS
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
6.6 billion
Transistors
1.27 billion
284 mm²
Die Size
118 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
7.5
CUDA
3.0
6.7
Shader Model
5.1
