GPU Comparison
GEFORCE
NVIDIA GeForce 945M
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1020 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2015
VS
GEFORCE
GeForce GT 555M
CORE STATE
GF106
VRAM
1024 MB
CLOCK SPEED
—
TDP
35 W
BUS WIDTH
128 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
945M
GT 555M
Core Specs
Shading Units
640
144
-77.5%
Shaders
640
144
-77.5%
TMUs
40
24
-40.0%
ROPs
16
16
0.0%
SM Count
—
3
Clocks
Base Clock
928 MHz
—
Boost Clock
1020 MHz
—
GPU Clock
—
590 MHz
Shader Clock
—
1180 MHz
Memory Clock
900 MHz
1800 Mbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
2 GB
1024 MB
VRAM (MB)
2,048
1,024
-50.0%
Memory Type
DDR3
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
28.80 GB/s
28.80 GB/s
Cache
L1 Cache
64 KB (per SMM)
64 KB (per SM)
L2 Cache
2 MB
256 KB
Performance
Pixel Rate
16.32 GPixel/s
3.540 GPixel/s
Texture Rate
40.80 GTexel/s
14.16 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
339.8 GFLOPS
FP64 (TFLOPS)
40.80 GFLOPS (1:32)
28.32 GFLOPS (1:12)
Power
TDP
75 W
35 W
TDP (W)
75
35
-53.3%
Power Connectors
None
—
Architecture
Architecture
Maxwell
Fermi
GPU Name
GM107
GF106
Generation
GeForce 900M
GeForce 500M
Process Size
28 nm
40 nm
Transistors
1,870 million
1,170 million
Die Size
148 mm²
238 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
4.9M / mm²
API Support
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
—
OpenCL
3.0
1.1
CUDA
5.0
2.1
Shader Model
6.7 (5.1)
5.1
Physical
Slot Width
MXM Module
—
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
MXM-B (3.0)
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
GeForce 800M
GeForce 400M
Successor
GeForce 10 Mobile
GeForce 600M