Radeon HD 4850 and Mobility Radeon HD 4870 - video card comparison
Radeon HD 4850
Mobility Radeon HD 4870
Architecture
Terascale 1 (2008−2010)
Terascale 1 (2008−2010)
GPU code name
RV770
M98-XT
Market segment
Desktop
Laptop
Release date
June 2008
January 2009
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
-
Core clock speed
625 MHz
550 MHz
Floating-point performance
1,000.0 gflops
880.0 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
956 million
956 million
Pipelines / CUDA cores
800
800
Power consumption (TDP)
110 Watt
-
Texture fill rate
25.00
22.00
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
993 MHz
888 MHz
Memory bandwidth
63.55 GB/s
56.83 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