AMD Radeon Pro V420 vs AMD Radeon HD 6870 1600SP Edition
GPU Specs Compare
Graphics Card
Release Date
Unknown
Jan 2013
Generation
Radeon Pro Vega
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
800 MHz
-
Boost Clock
1700 MHz
-
Memory Clock
800 MHz
1050 MHz
Memory
Memory Size
32GB
1024MB
Memory Type
HBM2
GDDR5
Memory Bus
4096bit
256bit
Bandwidth
819.2GB/s
134.4GB/s
Render Config
Compute Units
64
20
Shading Units
4096
1600
TMUs
256
80
ROPs
64
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
4 MB
512 KB
Theoretical Performance
Pixel Rate
108.8 GPixel/s
27.20 GPixel/s
Texture Rate
435.2 GTexel/s
68.00 GTexel/s
FP16 (half)
27.85 TFLOPS
-
FP32 (float)
13.93 TFLOPS
2.720 TFLOPS
FP64 (double)
6.963 TFLOPS
544.0 GFLOPS
Graphics Processor
GPU Name
Vega 20
Cypress
GPU Variant
Vega 20 GLXT WS(215-0914026)
Cypress XT(215-0735033)
Architecture
GCN 5.1
TeraScale 2
Foundry
TSMC
TSMC
Process Size
7 nm
40 nm
Transistors
13.23 billion
2.154 billion
Die Size
331 mm²
334 mm²
Board Design
TDP
300W
175W
Suggested PSU
700 W
450 W
Outputs
6x mini-DisplayPort 1.4a
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Graphics Features
DirectX
12 (12_1)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1
1.2
Vulkan
1.3
N/A
Shader Model
6.7
5.0