Iris Pro Graphics P580 and GeForce 945M - video card comparison
Passmark - benchmark score Iris Pro Graphics P580 vs GeForce 945M
Iris Pro Graphics P580
2081
GeForce 945M
2171
Iris Pro Graphics P580
GeForce 945M
Architecture
Gen. 9 Skylake (2015−2016)
Maxwell (2014−2018)
GPU code name
Skylake GT4e
GM107
Market segment
Laptop
Laptop
Release date
September 2015
March 2015
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x1
MXM-B (3.0)
Supplementary power connectors
-
None
Boost clock speed
1100 MHz
1045 MHz
Core clock speed
350 MHz
928 MHz
Floating-point performance
-
953.9 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
189 million
1,870 million
Pipelines / CUDA cores
72
512
Power consumption (TDP)
15 Watt
75 Watt
Texture fill rate
75.60
40.80
Memory type
DDR3L/LPDDR3/DDR4
DDR3
Maximum RAM amount
64 GB
4 GB
Memory bus width
eDRAM + 64/128 Bit
128 Bit
Memory clock speed
System Shared
2000 MHz
Memory bandwidth
-
28.8 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_0)
CUDA
-
+
OpenCL
2.1
1.2
OpenGL
4.6
4.5
Shader Model
6.4
5.1
Vulkan
1.1.97
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+
Quick Sync
+
-