Radeon HD 7990 and Iris Plus Graphics 645 - video card comparison
Passmark - benchmark score Radeon HD 7990 vs Iris Plus Graphics 645
Radeon HD 7990
5732
Iris Plus Graphics 645
1779
Radeon HD 7990
Iris Plus Graphics 645
Architecture
GCN 1.0 (2012−2020)
Gen. 9.5 Coffee Lake (2019)
GPU code name
Malta
Kaby Lake GT3e
Market segment
Desktop
Laptop
Release date
April 2013
July 2019
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
2x 8-pin
-
Boost clock speed
1000 MHz
1150 MHz
Core clock speed
950 MHz
300 MHz
Floating-point performance
2x 4,096 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
4,313 million
-
Pipelines / CUDA cores
2048
48
Power consumption (TDP)
375 Watt
15 Watt
Texture fill rate
128.0
50.40
Memory type
GDDR5
DDR3, DDR4
Maximum RAM amount
3 GB
System Shared
Memory bus width
384 Bit
System Shared
Memory clock speed
6000 MHz
System Shared
Memory bandwidth
288.0 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 4x mini-DisplayPort
No outputs
DirectX
12 (11_1)
12 (12_1)
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.1.103
Quick Sync
-
+