Radeon HD 7870M and UHD Graphics 770 - video card comparison
Passmark - benchmark score Radeon HD 7870M vs UHD Graphics 770
Radeon HD 7870M
1552
UHD Graphics 770
2844
Radeon HD 7870M
UHD Graphics 770
Architecture
GCN (2011−2017)
Alder Lake
GPU code name
Heathrow XT
Alder Lake xG
Market segment
Laptop
Desktop
Release date
April 2012
January 2022
Interface
PCIe 3.0 x16
Ring Bus
Boost clock speed
-
300 MHz
Core clock speed
800 MHz
-
Floating-point performance
1,024 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
1,500 million
-
Pipelines / CUDA cores
640
32
Power consumption (TDP)
45 Watt
15 Watt
Texture fill rate
32.00
26.40
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
4000 MHz
1550 MHz
Memory bandwidth
64 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (12_1)
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.3