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 GTX 580M
CORE STATE
GF114
VRAM
2 GB
CLOCK SPEED
—
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
945M
GTX 580M
Core Specs
Shading Units
640
384
-40.0%
Shaders
640
384
-40.0%
TMUs
40
64
+60.0%
ROPs
16
32
+100.0%
SM Count
—
8
Clocks
Base Clock
928 MHz
—
Boost Clock
1020 MHz
—
GPU Clock
—
620 MHz
Shader Clock
—
1240 MHz
Memory Clock
900 MHz
1800 Mbps effective
750 MHz
3 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
28.80 GB/s
96.00 GB/s
Cache
L1 Cache
64 KB (per SMM)
64 KB (per SM)
L2 Cache
2 MB
512 KB
Performance
Pixel Rate
16.32 GPixel/s
9.920 GPixel/s
Texture Rate
40.80 GTexel/s
39.68 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
952.3 GFLOPS
FP64 (TFLOPS)
40.80 GFLOPS (1:32)
79.36 GFLOPS (1:12)
Power
TDP
75 W
100 W
TDP (W)
75
100
+33.3%
Power Connectors
None
None
Architecture
Architecture
Maxwell
Fermi 2.0
GPU Name
GM107
GF114
Generation
GeForce 900M
GeForce 500M
Process Size
28 nm
40 nm
Transistors
1,870 million
1,950 million
Die Size
148 mm²
332 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
5.9M / 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
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
MXM-B (3.0)
MXM-B (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
GeForce 800M
GeForce 400M
Successor
GeForce 10 Mobile
GeForce 600M