AMD Radeon RX 7900M vs AMD Radeon R9 390 X2
GPU Specs Compare
Graphics Card
Release Date
Oct 2023
Sep 2015
Generation
Navi Mobile
Pirate Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1825 MHz
-
Boost Clock
2090 MHz
-
Memory Clock
2250 MHz
1350 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
512bit
Bandwidth
576.0GB/s
345.6GB/s
Render Config
Compute Units
72
40
Shading Units
4608
2560
TMUs
288
160
ROPs
192
64
RT Cores
72
-
L1 Cache
256 KB per Array
16 KB (per CU)
L2 Cache
6 MB
1024 KB
L3 Cache
64 MB
-
Theoretical Performance
Pixel Rate
401.3 GPixel/s
64.00 GPixel/s
Texture Rate
601.9 GTexel/s
160.0 GTexel/s
FP16 (half)
77.05 TFLOPS
-
FP32 (float)
38.52 TFLOPS
5.120 TFLOPS
FP64 (double)
1204 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Navi 31
Grenada
GPU Variant
Navi 31
Grenada PRO(215-0880030)
Architecture
RDNA 3.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
57.7 billion
6.2 billion
Die Size
529 mm²
438 mm²
Board Design
TDP
180W
580W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
4x 8-pin
Suggested PSU
-
950 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.2
2.0
Vulkan
1.3
1.2
Shader Model
6.8
6.3
📊 Benchmark
3DMark Time Spy
18,218
-
3DMark Time Spy Extreme
8,440
-
3DMark Speed Way
3,943
-
Blender
2,583
-