AMD Radeon RX 6800 3456SP vs AMD Radeon RX Vega 56 Mobile
GPU Specs Compare
Graphics Card
Release Date
Unknown
Jun 2018
Generation
Navi II
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
1138 MHz
Boost Clock
2250 MHz
1301 MHz
Memory Clock
2000 MHz
800 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
HBM2
Memory Bus
256bit
2048bit
Bandwidth
512.0GB/s
409.6GB/s
Render Config
Compute Units
54
56
Shading Units
3456
3584
TMUs
216
224
ROPs
96
64
RT Cores
54
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
4 MB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
216.0 GPixel/s
83.26 GPixel/s
Texture Rate
486.0 GTexel/s
291.4 GTexel/s
FP16 (half)
31.10 TFLOPS
18.65 TFLOPS
FP32 (float)
15.55 TFLOPS
9.326 TFLOPS
FP64 (double)
972.0 GFLOPS
582.8 GFLOPS
Graphics Processor
GPU Name
Navi 21
Vega 10
GPU Variant
Navi 21 ES(215-121000066)
Vega 10 XL(215-0894216)
Architecture
RDNA 2.0
GCN 5.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
26.8 billion
12.5 billion
Die Size
520 mm²
495 mm²
Board Design
TDP
250W
120W
Suggested PSU
600 W
-
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2
Shader Model
6.8
6.4