Radeon RX Vega 64 and Radeon RX 6600 XT - video card comparison
Passmark - benchmark score Radeon RX Vega 64 vs Radeon RX 6600 XT
Radeon RX Vega 64
14789
Radeon RX 6600 XT
16985
Radeon RX Vega 64
Radeon RX 6600 XT
Architecture
Vega (2017−2021)
Navi / RDNA2 (2020−2022)
GPU code name
Vega
Navi 23
Market segment
Desktop
Desktop
Release date
August 2017
July 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 8-pin
1x 8-pin
Boost clock speed
1546 MHz
2589 MHz
Core clock speed
1630 MHz
1968 MHz
Floating-point performance
13,353 gflops
-
Manufacturing process technology
14 nm
7 nm
Number of transistors
12,500 million
11,060 million
Pipelines / CUDA cores
4096
2048
Power consumption (TDP)
295 Watt
160 (TGP) Watt
Texture fill rate
395.8
331.4
Memory type
HBM2
GDDR6
Maximum RAM amount
8 GB
8 GB
Memory bus width
2048 Bit
128 Bit
Memory clock speed
945 MHz
16000 MHz
Memory bandwidth
483.8 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
1x HDMI, 2x DisplayPort
HDMI
+
+
DirectX
12 (12_1)
12.0 Ultimate (12_2)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.5
Vulkan
1.1.125
1.2