Product Compare

AMD Radeon RX 6750 XT vs AMD Radeon R9 390

GPU GPU
Graphics Card
Release Date Mar 2022 Jun 2015
Generation Navi II Pirate Islands
Type Desktop Desktop
Bus Interface PCIe 4.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 2150 MHz
Boost Clock 2600 MHz
Memory Clock 2250 MHz 1500 MHz
Memory
Memory Size 12GB 8GB
Memory Type GDDR6 GDDR5
Memory Bus 192bit 512bit
Bandwidth 432.0GB/s 384.0GB/s
Render Config
Compute Units 40 40
Shading Units 2560 2560
TMUs 160 160
ROPs 64 64
RT Cores 40
L1 Cache 128 KB per Array 16 KB (per CU)
L2 Cache 3 MB 1024 KB
L3 Cache 96 MB
Theoretical Performance
Pixel Rate 166.4 GPixel/s 64.00 GPixel/s
Texture Rate 416.0 GTexel/s 160.0 GTexel/s
FP16 (half) 26.62 TFLOPS
FP32 (float) 13.31 TFLOPS 5.120 TFLOPS
FP64 (double) 832.0 GFLOPS 640.0 GFLOPS
Graphics Processor
GPU Name Navi 22 Grenada
GPU Variant Navi 22 KXT(215-127000144) Grenada PRO(215-0880030)
Architecture RDNA 2.0 GCN 2.0
Foundry TSMC TSMC
Process Size 7 nm 28 nm
Transistors 17.2 billion 6.2 billion
Die Size 335 mm² 438 mm²
Board Design
TDP 250W 275W
Suggested PSU 600 W 600 W
Outputs 1x HDMI 2.13x DisplayPort 1.4a 2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors 1x 6-pin + 1x 8-pin 1x 6-pin + 1x 8-pin
Graphics Features
DirectX 12 Ultimate (12_2) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.1 2.0
Vulkan 1.3 1.2
Shader Model 6.5 6.3