Radeon HD 3870 X2 and HD Graphics 4000 - video card comparison
Passmark - benchmark score Radeon HD 3870 X2 vs HD Graphics 4000
Radeon HD 3870 X2
729
HD Graphics 4000
468
Radeon HD 3870 X2
HD Graphics 4000
Architecture
TeraScale (2005−2013)
Gen. 7 Ivy Bridge (2011−2012)
GPU code name
R680
Ivy Bridge
Market segment
Desktop
Laptop
Release date
January 2008
March 2011
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
-
1350 MHz
Core clock speed
825 MHz
350 MHz
Floating-point performance
2x 528.0 gflops
33.6 gflops
Manufacturing process technology
55 nm
22 nm
Number of transistors
666 million
1,200 million
Pipelines / CUDA cores
320
16
Power consumption (TDP)
165 Watt
unknown
Texture fill rate
13.20
20.80
Memory type
GDDR3
System Shared
Maximum RAM amount
512 MB
System Shared
Memory bus width
256 Bit
64/128 Bit
Memory clock speed
1802 MHz
System Shared
Memory bandwidth
57.66 GB/s
-
Shared memory
-
+
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
11.1 (11_0)
OpenCL
N/A
1.2
OpenGL
3.3
4.0
Shader Model
4.1
5.0
Vulkan
N/A
1.1.80
Quick Sync
-
+