Radeon HD 7870M and HD Graphics 4000 - video card comparison
Passmark - benchmark score Radeon HD 7870M vs HD Graphics 4000
Radeon HD 7870M
1552
HD Graphics 4000
468
Radeon HD 7870M
HD Graphics 4000
Architecture
GCN (2011−2017)
Gen. 7 Ivy Bridge (2011−2012)
GPU code name
Heathrow XT
Ivy Bridge
Market segment
Laptop
Laptop
Release date
April 2012
March 2011
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Boost clock speed
-
1350 MHz
Core clock speed
800 MHz
350 MHz
Floating-point performance
1,024 gflops
33.6 gflops
Manufacturing process technology
28 nm
22 nm
Number of transistors
1,500 million
1,200 million
Pipelines / CUDA cores
640
16
Power consumption (TDP)
45 Watt
unknown
Texture fill rate
32.00
20.80
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
4000 MHz
System Shared
Memory bandwidth
64 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
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
-
+