Radeon R9 270 and Radeon RX 6600 - video card comparison
Passmark - benchmark score Radeon R9 270 vs Radeon RX 6600
Radeon R9 270
4435
Radeon RX 6600
15586
Radeon R9 270
Radeon RX 6600
Architecture
GCN 1.0 (2012−2020)
Navi / RDNA2 (2020−2022)
GPU code name
Curacao
Navi 23
Market segment
Desktop
Desktop
Release date
November 2013
October 2021
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
1 x 6-pin
1x 8-pin
Boost clock speed
925 MHz
2491 MHz
Core clock speed
-
2044 MHz
Floating-point performance
2,368 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
2,800 million
11,060 million
Pipelines / CUDA cores
1280
1792
Power consumption (TDP)
150 Watt
132 Watt
Texture fill rate
74.00
279.0
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
14500 MHz
Memory bandwidth
179.2 GB/s
224.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12.0 Ultimate (12_2)
Mantle
-
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
+
1.2
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-