AMD Radeon 780M vs AMD Radeon R9 390X
GPU Specs Compare
Graphics Card
Release Date
Jan 2023
Jun 2015
Generation
Navi III IGP
Pirate Islands
Type
Integrated
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
800 MHz
-
Boost Clock
2700 MHz
-
Memory Clock
System Shared
1500 MHz
Memory
Memory Size
System Shared
8GB
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
512bit
Bandwidth
System Dependent
384.0GB/s
Render Config
Compute Units
12
44
Shading Units
768
2816
TMUs
48
176
ROPs
32
64
RT Cores
12
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
1024 KB
Theoretical Performance
Pixel Rate
86.40 GPixel/s
67.20 GPixel/s
Texture Rate
129.6 GTexel/s
184.8 GTexel/s
FP16 (half)
16.59 TFLOPS
-
FP32 (float)
8.294 TFLOPS
5.914 TFLOPS
FP64 (double)
518.4 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
Phoenix
Grenada
Architecture
RDNA 3.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
28 nm
Transistors
25.39 billion
6.2 billion
Die Size
178 mm²
438 mm²
GPU Variant
-
Grenada XT(215-0880004)
Board Design
TDP
15W
275W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
-
600 W
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
6.7
6.3
📊 Benchmark
3DMark Time Spy
2,775
-
3DMark Time Spy Extreme
1,324
-
3DMark Speed Way
458
-
Blender
350
-