Radeon Pro Vega 20 vs Radeon HD 8670A
We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon Pro Vega 20 Advantages
Released 5 years and 9 months late
Boost Clock1283MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (189.4GB/s vs 16.00GB/s)
896 additional rendering cores
Radeon HD 8670A Advantages
Lower TDP (45W vs 100W)
Score
Benchmark
FP32 (float)
Radeon Pro Vega 20
+612%
3284
Radeon HD 8670A
461
Graphics Card
Nov 2018
Release Date
Feb 2013
Radeon Pro Mac
Generation
All-In-One
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-A (3.0)
Clock Speeds
815 MHz
Base Clock
-
1283 MHz
Boost Clock
-
740 MHz
Memory Clock
1000 MHz
Memory
4GB
Memory Size
1024MB
HBM2
Memory Type
DDR3
1024bit
Memory Bus
64bit
189.4GB/s
Bandwidth
16.00GB/s
Render Config
20
Compute Units
6
1280
Shading Units
384
80
TMUs
24
32
ROPs
8
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
128 KB
Theoretical Performance
41.06 GPixel/s
Pixel Rate
4.800 GPixel/s
102.6 GTexel/s
Texture Rate
14.40 GTexel/s
6.569 TFLOPS
FP16 (half)
-
3.284 TFLOPS
FP32 (float)
460.8 GFLOPS
205.3 GFLOPS
FP64 (double)
28.80 GFLOPS
Board Design
100W
TDP
45W
No outputs
Outputs
No outputs
Graphics Processor
Vega 12
GPU Name
Mars
Vega 12 XTA
GPU Variant
Mars XT
GCN 5.0
Architecture
GCN 1.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
Unknown
Transistors
0.95 billion
Unknown
Die Size
77 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2
Vulkan
1.2
6.3
Shader Model
5.1
