Radeon HD 4890 and Mobility Radeon HD 4860 - video card comparison
Radeon HD 4890
Mobility Radeon HD 4860
Architecture
TeraScale (2005−2013)
Terascale 1 (2008−2010)
GPU code name
RV790
M97-XT
Market segment
Desktop
Laptop
Release date
April 2009
March 2009
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
-
Core clock speed
850 MHz
650 MHz
Floating-point performance
1,360.0 gflops
832.0 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
959 million
826 million
Pipelines / CUDA cores
800
640
Power consumption (TDP)
190 Watt
-
Texture fill rate
34.00
20.80
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3900 MHz
1000 MHz
Memory bandwidth
124.8 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A