AMD Radeon R9 390 X2 vs AMD Radeon RX 6750 XT
GPU Specs Compare
Graphics Card
Release Date
Sep 2015
Mar 2022
Generation
Pirate Islands
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1350 MHz
2250 MHz
Base Clock
-
2150 MHz
Boost Clock
-
2600 MHz
Memory
Memory Size
8GB
12GB
Memory Type
GDDR5
GDDR6
Memory Bus
512bit
192bit
Bandwidth
345.6GB/s
432.0GB/s
Render Config
Compute Units
40
40
Shading Units
2560
2560
TMUs
160
160
ROPs
64
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
1024 KB
3 MB
RT Cores
-
40
L3 Cache
-
96 MB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
166.4 GPixel/s
Texture Rate
160.0 GTexel/s
416.0 GTexel/s
FP32 (float)
5.120 TFLOPS
13.31 TFLOPS
FP64 (double)
640.0 GFLOPS
832.0 GFLOPS
FP16 (half)
-
26.62 TFLOPS
Graphics Processor
GPU Name
Grenada
Navi 22
GPU Variant
Grenada PRO(215-0880030)
Navi 22 KXT(215-127000144)
Architecture
GCN 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
6.2 billion
17.2 billion
Die Size
438 mm²
335 mm²
Board Design
TDP
580W
250W
Suggested PSU
950 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
4x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.3
Shader Model
6.3
6.5