Radeon HD 7870 and HD Graphics 4000 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs HD Graphics 4000
Radeon HD 7870
4779
HD Graphics 4000
468
Radeon HD 7870
HD Graphics 4000
Architecture
GCN (2011−2017)
Gen. 7 Ivy Bridge (2011−2012)
GPU code name
Pitcairn XT
Ivy Bridge
Market segment
Desktop
Laptop
Release date
March 2012
March 2011
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
1350 MHz
Core clock speed
1000 MHz
350 MHz
Floating-point performance
-
33.6 gflops
Manufacturing process technology
28 nm
22 nm
Number of transistors
2800 Million
1,200 million
Pipelines / CUDA cores
1280
16
Power consumption (TDP)
175 Watt
unknown
Texture fill rate
80.00
20.80
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
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)
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
Quick Sync
-
+