Radeon HD 4890 and Radeon HD 7640G - video card comparison
Passmark - benchmark score Radeon HD 4890 vs Radeon HD 7640G
Radeon HD 4890
1552
Radeon HD 7640G
473
Radeon HD 4890
Radeon HD 7640G
Architecture
TeraScale (2005−2013)
Terascale 3 (2010−2013)
GPU code name
RV790
Trinity
Market segment
Desktop
Laptop
Release date
April 2009
May 2012
Interface
PCIe 2.0 x16
IGP
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
686 MHz
Core clock speed
850 MHz
497 MHz
Floating-point performance
1,360.0 gflops
-
Manufacturing process technology
55 nm
32 nm
Number of transistors
959 million
1,303 million
Pipelines / CUDA cores
800
256
Power consumption (TDP)
190 Watt
35 Watt
Texture fill rate
34.00
10.96
Memory type
GDDR5
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
3900 MHz
System Shared
Memory bandwidth
124.8 GB/s
-
Shared memory
-
+
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
11.2 (11_0)
OpenCL
1.1
1.2
OpenGL
3.3
4.4
Shader Model
4.1
5.0
Vulkan
N/A
N/A