GPU Comparison
GEFORCE
NVIDIA GeForce 940MX
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
861 MHz
TDP
23 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2016
VS
GEFORCE
GeForce GTX 660
CORE STATE
GK106
VRAM
2 GB
CLOCK SPEED
1032 MHz
TDP
140 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
940MX
GTX 660
Core Specs
Shading Units
512
960
+87.5%
Shaders
512
960
+87.5%
TMUs
32
80
+150.0%
ROPs
8
24
+200.0%
Clocks
Base Clock
795 MHz
980 MHz
Boost Clock
861 MHz
1032 MHz
Memory Clock
1253 MHz
5 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
64 bit
192 bit
Bandwidth
40.10 GB/s
144.2 GB/s
Cache
L1 Cache
64 KB (per SMM)
16 KB (per SMX)
L2 Cache
1024 KB
384 KB
Performance
Pixel Rate
6.888 GPixel/s
20.64 GPixel/s
Texture Rate
27.55 GTexel/s
82.56 GTexel/s
FP32 (TFLOPS)
881.7 GFLOPS
1.981 TFLOPS
FP64 (TFLOPS)
27.55 GFLOPS (1:32)
82.56 GFLOPS (1:24)
Power
TDP
23 W
140 W
TDP (W)
23
140
+508.7%
Suggested PSU
—
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
Maxwell
Kepler
GPU Name
GM107
GK106
Generation
GeForce 900M
GeForce 600
Process Size
28 nm
28 nm
Transistors
1,870 million
2,540 million
Die Size
148 mm²
221 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
11.5M / mm²
API Support
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.175
OpenCL
3.0
3.0
CUDA
5.0
3.0
Shader Model
6.7 (5.1)
6.5 (5.1)
Physical
Slot Width
MXM Module
Dual-slot
Length
—
241 mm
9.5 inches
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
229 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 800M
GeForce 500
Successor
GeForce 10 Mobile
GeForce 700