Radeon HD 7870 and Iris Plus Graphics 640 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Iris Plus Graphics 640
Radeon HD 7870
4779
Iris Plus Graphics 640
1534
Radeon HD 7870
Iris Plus Graphics 640
Architecture
GCN (2011−2017)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
Pitcairn XT
Kaby Lake GT3e
Market segment
Desktop
Laptop
Release date
March 2012
January 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
1050 MHz
Core clock speed
1000 MHz
300 MHz
Manufacturing process technology
28 nm
14 nm
Number of transistors
2800 Million
189 million
Pipelines / CUDA cores
1280
48
Power consumption (TDP)
175 Watt
15 Watt
Texture fill rate
80.00
52.80
Memory type
GDDR5
DDR3L/LPDDR3/DDR4
Maximum RAM amount
2 GB
32 GB
Memory bus width
256 Bit
64/128 Bit
Memory clock speed
4800 MHz
System Shared
Memory bandwidth
153.6 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (12_1)
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.1.103
Quick Sync
-
+