GPU Comparison
GEFORCE
NVIDIA GeForce 940M
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1098 MHz
TDP
75 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2015
VS
GEFORCE
GeForce GTX 660 Ti
CORE STATE
GK104
VRAM
2 GB
CLOCK SPEED
980 MHz
TDP
150 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
940M
GTX 660 Ti
Core Specs
Shading Units
512
1,344
+162.5%
Shaders
512
1,344
+162.5%
TMUs
32
112
+250.0%
ROPs
16
24
+50.0%
Clocks
Base Clock
1020 MHz
915 MHz
Boost Clock
1098 MHz
980 MHz
Memory Clock
900 MHz
1800 Mbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
DDR3
GDDR5
Memory Bus
64 bit
192 bit
Bandwidth
14.40 GB/s
144.2 GB/s
Cache
L1 Cache
64 KB (per SMM)
16 KB (per SMX)
L2 Cache
2 MB
384 KB
Performance
Pixel Rate
17.57 GPixel/s
27.44 GPixel/s
Texture Rate
35.14 GTexel/s
109.8 GTexel/s
FP32 (TFLOPS)
1,124.4 GFLOPS
2.634 TFLOPS
FP64 (TFLOPS)
35.14 GFLOPS (1:32)
109.8 GFLOPS (1:24)
Power
TDP
75 W
150 W
TDP (W)
75
150
+100.0%
Suggested PSU
—
450 W
Power Connectors
None
2x 6-pin
Architecture
Architecture
Maxwell
Kepler
GPU Name
GM107
GK104
Generation
GeForce 900M
GeForce 600
Process Size
28 nm
28 nm
Transistors
1,870 million
3,540 million
Die Size
148 mm²
294 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
12.0M / 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
MXM-B (3.0)
PCIe 3.0 x16
Other
Launch Price
—
299 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 800M
GeForce 500
Successor
GeForce 10 Mobile
GeForce 700