AMD Radeon RX Vega 64 Limited Edition vs AMD Radeon RX 6800 3456SP
GPU · Specs Compare
Graphics Card
Release Date
Aug 2017
Unknown
Generation
Vega
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1247 MHz
1700 MHz
Boost Clock
1546 MHz
2250 MHz
Memory Clock
945 MHz
2000 MHz
Memory
Memory Size
8GB
16GB
Memory Type
HBM2
GDDR6
Memory Bus
2048bit
256bit
Bandwidth
483.8GB/s
512.0GB/s
Render Config
Compute Units
64
54
Shading Units
4096
3456
TMUs
256
216
ROPs
64
96
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
4 MB
4 MB
RT Cores
—
54
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
98.94 GPixel/s
216.0 GPixel/s
Texture Rate
395.8 GTexel/s
486.0 GTexel/s
FP16 (half)
25.33 TFLOPS
31.10 TFLOPS
FP32 (float)
12.66 TFLOPS
15.55 TFLOPS
FP64 (double)
791.6 GFLOPS
972.0 GFLOPS
Graphics Processor
GPU Name
Vega 10
Navi 21
GPU Variant
Vega 10 XT(215-0894200)
Navi 21 ES(215-121000066)
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
295W
250W
Suggested PSU
600 W
600 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
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.