HD Graphics 2500 and Radeon HD 3870 - video card comparison
HD Graphics 2500
Radeon HD 3870
Architecture
Gen. 7 Ivy Bridge (2011−2012)
TeraScale (2005−2013)
GPU code name
Ivy Bridge GT1
RV670
Market segment
Laptop
Desktop
Release date
April 2012
November 2007
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
1150 MHz
-
Core clock speed
650 MHz
777 MHz
Floating-point performance
13.8 gflops
497.3 gflops
Manufacturing process technology
22 nm
55 nm
Number of transistors
392 million
666 million
Pipelines / CUDA cores
6
320
Power consumption (TDP)
unknown
106 Watt
Texture fill rate
6.900
12.43
Memory type
System Shared
GDDR4
Maximum RAM amount
System Shared
512 MB
Memory bus width
64/128 Bit
256 Bit
Memory clock speed
System Shared
2252 MHz
Memory bandwidth
-
72.06 GB/s
Shared memory
+
-
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
11.1 (11_0)
10.1 (10_1)
OpenCL
1.2
N/A
OpenGL
4.0
3.3
Shader Model
5.0
4.1
Vulkan
1.1.80
N/A