Radeon HD 6870 and Radeon 680M - video card comparison
Passmark - benchmark score Radeon HD 6870 vs Radeon 680M
Radeon HD 6870
2285
Radeon 680M
6351
Radeon HD 6870
Radeon 680M
Architecture
Terascale 2 (2009−2015)
RDNA 2 (2020−2022)
GPU code name
RV940 Barts
RDNA 2 Rembrandt
Market segment
Desktop
Laptop
Release date
October 2010
January 2022
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 6-pin
None
Boost clock speed
900 MHz
2400 MHz
Floating-point performance
2,016.0 gflops
-
Manufacturing process technology
40 nm
6 nm
Number of transistors
1,700 million
13,100 million
Pipelines / CUDA cores
1120
768
Power consumption (TDP)
151 Watt
45 Watt
Texture fill rate
50.40
115.2
Memory type
GDDR5
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
1050 MHz
System Shared
Memory bandwidth
134.4 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12 (12_1)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.5
Vulkan
-
1.2
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-