Radeon HD 7640G and Radeon HD 4850 X2 - video card comparison
Passmark - benchmark score Radeon HD 7640G vs Radeon HD 4850 X2
Radeon HD 7640G
473
Radeon HD 4850 X2
1166
Radeon HD 7640G
Radeon HD 4850 X2
Architecture
Terascale 3 (2010−2013)
TeraScale (2005−2013)
GPU code name
Trinity
R700
Market segment
Laptop
Desktop
Release date
May 2012
November 2008
Interface
IGP
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin + 1x 8-pin
Boost clock speed
686 MHz
-
Core clock speed
497 MHz
625 MHz
Floating-point performance
-
2x 1,000.0 gflops
Manufacturing process technology
32 nm
55 nm
Number of transistors
1,303 million
956 million
Pipelines / CUDA cores
256
800
Power consumption (TDP)
35 Watt
250 Watt
Texture fill rate
10.96
25.00
Memory type
System Shared
GDDR3
Maximum RAM amount
System Shared
512 MB
Memory bus width
System Shared
256 Bit
Memory clock speed
System Shared
1990 MHz
Memory bandwidth
-
63.68 GB/s
Shared memory
+
-
Display Connectors
No outputs
4x DVI, 1x S-Video
DirectX
11.2 (11_0)
10.1 (10_1)
OpenCL
1.2
1.1
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
N/A
N/A