Iris Pro Graphics P580 and Mobility Radeon HD 4870 X2 - video card comparison
Iris Pro Graphics P580
Mobility Radeon HD 4870 X2
Architecture
Gen. 9 Skylake (2015−2016)
Terascale 1 (2008−2010)
GPU code name
Skylake GT4e
M98-XT
Market segment
Laptop
Laptop
Release date
September 2015
January 2009
Interface
PCIe 3.0 x1
PCIe 2.0 x16
Boost clock speed
1100 MHz
-
Core clock speed
350 MHz
550 MHz
Floating-point performance
-
2x 880.0 gflops
Manufacturing process technology
14 nm
55 nm
Number of transistors
189 million
956 million
Pipelines / CUDA cores
72
1600
Power consumption (TDP)
15 Watt
-
Texture fill rate
75.60
22.00
Memory type
DDR3L/LPDDR3/DDR4
GDDR3, GDDR5
Maximum RAM amount
64 GB
2 GB
Memory bus width
eDRAM + 64/128 Bit
256 Bit
Memory clock speed
System Shared
888 MHz
Memory bandwidth
-
89.6 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
10.1 (10_1)
OpenCL
2.1
1.1
OpenGL
4.6
3.3
Shader Model
6.4
4.1
Vulkan
1.1.97
N/A
Quick Sync
+
-