Radeon HD 7950 and Radeon 660M - video card comparison
Passmark - benchmark score Radeon HD 7950 vs Radeon 660M
Radeon HD 7950
4907
Radeon 660M
6474
Radeon HD 7950
Radeon 660M
Architecture
GCN 1.0 (2012−2020)
RDNA 2 (2020−2022)
GPU code name
Tahiti
RDNA 2 Rembrandt
Market segment
Desktop
Laptop
Release date
January 2012
January 2022
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 6-pin
None
Boost clock speed
1250 MHz
1900 MHz
Compute units
28
-
Floating-point performance
2,867 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
4,313 million
13,100 million
Pipelines / CUDA cores
1792
384
Power consumption (TDP)
200 Watt
45 Watt
Texture fill rate
89.60
45.60
Memory type
GDDR5
System Shared
Maximum RAM amount
3 GB
System Shared
Memory bus width
384 Bit
System Shared
Memory clock speed
1250 MHz
System Shared
Memory bandwidth
240 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12 (12_1)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
-
1.2
AppAcceleration
+
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
-
-
ZeroCore
+
-