Radeon HD 7870 and HD Graphics P4000 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs HD Graphics P4000
Radeon HD 7870
4779
HD Graphics P4000
531
Radeon HD 7870
HD Graphics P4000
Architecture
GCN (2011−2017)
Generation 7.0 (2012)
GPU code name
Pitcairn XT
Ivy Bridge GT2
Market segment
Desktop
Desktop
Release date
March 2012
May 2012
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
1250 MHz
Core clock speed
1000 MHz
650 MHz
Manufacturing process technology
28 nm
22 nm
Number of transistors
2800 Million
1,200 million
Pipelines / CUDA cores
1280
128
Power consumption (TDP)
175 Watt
45 Watt
Texture fill rate
80.00
20.00
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
256 Bit
System Shared
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)
11.1 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.0
Shader Model
5.1
5.0
Vulkan
1.2.131
1.1.80