Radeon HD 4870 and UHD Graphics 770 - video card comparison
Passmark - benchmark score Radeon HD 4870 vs UHD Graphics 770
Radeon HD 4870
1411
UHD Graphics 770
2844
Radeon HD 4870
UHD Graphics 770
Architecture
TeraScale (2005−2013)
Alder Lake
GPU code name
RV770
Alder Lake xG
Market segment
Desktop
Desktop
Release date
June 2008
January 2022
Interface
PCIe 2.0 x16
Ring Bus
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
300 MHz
Core clock speed
750 MHz
-
Floating-point performance
1,200.0 gflops
-
Manufacturing process technology
55 nm
10 nm
Number of transistors
956 million
-
Pipelines / CUDA cores
800
32
Power consumption (TDP)
150 Watt
15 Watt
Texture fill rate
30.00
26.40
Memory type
GDDR5
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
3600 MHz
1550 MHz
Memory bandwidth
115.2 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 (12_1)
OpenCL
1.1
3.0
OpenGL
3.3
4.6
Shader Model
4.1
6.4
Vulkan
N/A
1.3