AMD Radeon RX Vega 56 vs AMD Radeon RX 6800 XT
GPU · Specs Compare
Graphics Card
Release Date
Aug 2017
Oct 2020
Generation
Vega
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1156 MHz
1825 MHz
Boost Clock
1471 MHz
2250 MHz
Memory Clock
800 MHz
2000 MHz
Memory
Memory Size
8GB
16GB
Memory Type
HBM2
GDDR6
Memory Bus
2048bit
256bit
Bandwidth
409.6GB/s
512.0GB/s
Render Config
Compute Units
56
72
Shading Units
3584
4608
TMUs
224
288
ROPs
64
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
4 MB
4 MB
RT Cores
—
72
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
94.14 GPixel/s
288.0 GPixel/s
Texture Rate
329.5 GTexel/s
648.0 GTexel/s
FP16 (half)
21.09 TFLOPS
41.47 TFLOPS
FP32 (float)
10.54 TFLOPS
20.74 TFLOPS
FP64 (double)
659.0 GFLOPS
1296 GFLOPS
Graphics Processor
GPU Name
Vega 10
Navi 21
GPU Variant
Vega 10 XL(215-0894216)
Navi 21 XT(215-121000177)
Architecture
GCN 5.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
7 nm
Transistors
12.5 billion
26.8 billion
Die Size
495 mm²
520 mm²
Board Design
TDP
210W
300W
Suggested PSU
550 W
700 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.3
Shader Model
6.4
6.5
Benchmark
3DMark Time Spy
6,783
19,329
3DMark Time Spy Extreme
3,310
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.