Radeon HD 6970 and Iris Plus Graphics 645 - video card comparison
Passmark - benchmark score Radeon HD 6970 vs Iris Plus Graphics 645
Radeon HD 6970
2921
Iris Plus Graphics 645
1779
Radeon HD 6970
Iris Plus Graphics 645
Architecture
Terascale 2 (2009−2015)
Gen. 9.5 Coffee Lake (2019)
GPU code name
Cayman
Kaby Lake GT3e
Market segment
Desktop
Laptop
Release date
December 2010
July 2019
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 3.0 x1
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
880 MHz
1150 MHz
Core clock speed
-
300 MHz
Floating-point performance
2,703.4 gflops
-
Manufacturing process technology
40 nm
14 nm
Number of transistors
2,640 million
-
Pipelines / CUDA cores
1536
48
Power consumption (TDP)
550 Watt
15 Watt
Texture fill rate
84.48
50.40
Memory type
DDR5
DDR3, DDR4
Maximum RAM amount
2 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
1375 MHz
System Shared
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
2.1
OpenGL
4.4
4.6
Shader Model
5.0
6.4
Vulkan
-
1.1.103
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
Quick Sync
-
+
TrueAudio
-
-
ZeroCore
-
-