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
Tesla K40m
CORE STATE
GK110B
VRAM
12 GB
CLOCK SPEED
876 MHz
TDP
245 W
BUS WIDTH
384 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
945M
Tesla K40m
Core Specs
Shading Units
640
2,880
+350.0%
Shaders
640
2,880
+350.0%
TMUs
40
240
+500.0%
ROPs
16
48
+200.0%
Clocks
Base Clock
928 MHz
745 MHz
Boost Clock
1020 MHz
876 MHz
Memory Clock
900 MHz
1800 Mbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
2 GB
12 GB
VRAM (MB)
2,048
12,288
+500.0%
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
384 bit
Bandwidth
28.80 GB/s
288.4 GB/s
Cache
L1 Cache
64 KB (per SMM)
16 KB (per SMX)
L2 Cache
2 MB
1536 KB
Performance
Pixel Rate
16.32 GPixel/s
52.56 GPixel/s
Texture Rate
40.80 GTexel/s
210.2 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
5.046 TFLOPS
FP64 (TFLOPS)
40.80 GFLOPS (1:32)
1.682 TFLOPS (1:3)
Power
TDP
75 W
245 W
TDP (W)
75
245
+226.7%
Suggested PSU
—
550 W
Power Connectors
None
—
Architecture
Architecture
Maxwell
Kepler
GPU Name
GM107
GK110B
Generation
GeForce 900M
Tesla Kepler
(Kxx)
Process Size
28 nm
28 nm
Transistors
1,870 million
7,080 million
Die Size
148 mm²
561 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
12.6M / mm²
API Support
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.175
OpenCL
3.0
3.0
CUDA
5.0
3.5
Shader Model
6.7 (5.1)
6.5 (5.1)
Physical
Slot Width
MXM Module
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Other
Launch Price
—
7,699 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 800M
Tesla Fermi
Successor
GeForce 10 Mobile
Tesla Maxwell