AMD Radeon HD 7870 GHz Edition vs Intel Iris Xe MAX Graphics
GPU Specs Compare
Graphics Card
Release Date
Mar 2012
Oct 2020
Generation
Southern Islands
HD Graphics-M
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Memory Clock
1200 MHz
2133 MHz
Base Clock
-
300 MHz
Boost Clock
-
1650 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
LPDDR4X
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
68.26GB/s
Render Config
Compute Units
20
-
Shading Units
1280
768
TMUs
80
48
ROPs
32
24
L1 Cache
16 KB (per CU)
-
L2 Cache
512 KB
1024 KB
L3 Cache
-
16 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
39.60 GPixel/s
Texture Rate
80.00 GTexel/s
79.20 GTexel/s
FP32 (float)
2.560 TFLOPS
2.534 TFLOPS
FP64 (double)
160.0 GFLOPS
633.6 GFLOPS
FP16 (half)
-
5.069 TFLOPS
Graphics Processor
GPU Name
Pitcairn
DG1
GPU Variant
Pitcairn XT(215-0828047)
-
Architecture
GCN 1.0
Generation 12.1
Foundry
TSMC
Intel
Process Size
28 nm
10 nm
Transistors
2.8 billion
Unknown
Die Size
212 mm²
95 mm²
Board Design
TDP
175W
25W
Suggested PSU
450 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
-
Graphics Features
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.3
Shader Model
5.1
6.4