GeForce GTX 980 and Radeon HD 6620G - video card comparison
Passmark - benchmark score GeForce GTX 980 vs Radeon HD 6620G
GeForce GTX 980
11458
Radeon HD 6620G
351
GeForce GTX 980
Radeon HD 6620G
Architecture
Maxwell (2014−2018)
Terascale 2 (2009−2015)
GPU code name
GM204
Llano
Market segment
Desktop
Laptop
Release date
September 2014
June 2011
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
IGP
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
2x 6-pins
-
SLI options
+
-
Boost clock speed
1216 MHz
-
Core clock speed
1064 MHz
400 MHz
CUDA cores
2048
-
Floating-point performance
4,981 gflops
-
Manufacturing process technology
28 nm
32 nm
Number of transistors
5,200 million
1000 Million
Pipelines / CUDA cores
2048
400
Power consumption (TDP)
165 Watt
35 Watt
Texture fill rate
144 billion/sec
8.880
Memory type
GDDR5
System Shared
Maximum RAM amount
4 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
7.0 GB/s
System Shared
Memory bandwidth
224 GB/s
-
Shared memory
-
+
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
No outputs
Multi monitor support
4 displays
-
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.5
4.4
Shader Model
6.4
5.0
Vulkan
1.1.126
N/A
BatteryBoost
+
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-