Radeon R9 390 and Radeon RX 6750 XT - video card comparison
Passmark - benchmark score Radeon R9 390 vs Radeon RX 6750 XT
Radeon R9 390
9182
Radeon RX 6750 XT
21388
Radeon R9 390
Radeon RX 6750 XT
Architecture
GCN 2.0 (2013−2017)
Navi / RDNA2 (2020−2022)
GPU code name
Grenada
Navi 22
Market segment
Desktop
Desktop
Release date
June 2015
March 2022
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
1x 6-pin + 1x 8-pin
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
2600 MHz
Core clock speed
-
2150 MHz
Floating-point performance
5,120 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
6,200 million
17,200 million
Pipelines / CUDA cores
2560
2560
Power consumption (TDP)
275 Watt
250 Watt
Texture fill rate
160.0
416.0
Memory type
GDDR5
GDDR6
Maximum RAM amount
0 MB
12 GB
Memory bus width
512 Bit
192 Bit
Memory clock speed
1000 MHz
18000 MHz
Memory bandwidth
384 GB/s
432.0 GB/s
High bandwidth memory (HBM)
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI 2.1, 3x DisplayPort 1.4a
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12 Ultimate (12_2)
Mantle
+
-
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.3
6.5
Vulkan
+
1.3
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-