AMD Radeon RX Vega 56 vs AMD Radeon R9 390
GPU · Specs Compare
Graphics Card
Release Date
Aug 2017
Jun 2015
Generation
Vega
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1156 MHz
—
Boost Clock
1471 MHz
—
Memory Clock
800 MHz
1500 MHz
Memory
Memory Size
8GB
8GB
Memory Type
HBM2
GDDR5
Memory Bus
2048bit
512bit
Bandwidth
409.6GB/s
384.0GB/s
Render Config
Compute Units
56
40
Shading Units
3584
2560
TMUs
224
160
ROPs
64
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
4 MB
1024 KB
Theoretical Performance
Pixel Rate
94.14 GPixel/s
64.00 GPixel/s
Texture Rate
329.5 GTexel/s
160.0 GTexel/s
FP16 (half)
21.09 TFLOPS
—
FP32 (float)
10.54 TFLOPS
5.120 TFLOPS
FP64 (double)
659.0 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Vega 10
Grenada
GPU Variant
Vega 10 XL(215-0894216)
Grenada PRO(215-0880030)
Architecture
GCN 5.0
GCN 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
12.5 billion
6.2 billion
Die Size
495 mm²
438 mm²
Board Design
TDP
210W
275W
Suggested PSU
550 W
600 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.2
1.2
Shader Model
6.4
6.3
Benchmark
3DMark Time Spy
6,783
3,964
3DMark Time Spy Extreme
3,310
1,931
▲ Specs Compare
Data sourced from official specifications and benchmark tests.