AMD Radeon R9 390 vs NVIDIA GeForce MX450 30.5W 8Gbps
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Aug 2020
Generation
Pirate Islands
GeForce MX
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x4
Clock Speeds
Memory Clock
1500 MHz
2000 MHz
Base Clock
—
1035 MHz
Boost Clock
—
1275 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
64bit
Bandwidth
384.0GB/s
64.00GB/s
Render Config
Compute Units
40
—
Shading Units
2560
896
TMUs
160
56
ROPs
64
32
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
1024 KB
512 KB
SM Count
—
14
Theoretical Performance
Pixel Rate
64.00 GPixel/s
40.80 GPixel/s
Texture Rate
160.0 GTexel/s
71.40 GTexel/s
FP32 (float)
5.120 TFLOPS
2.285 TFLOPS
FP64 (double)
640.0 GFLOPS
71.40 GFLOPS
FP16 (half)
—
4.570 TFLOPS
Graphics Processor
GPU Name
Grenada
TU117
GPU Variant
Grenada PRO(215-0880030)
—
Architecture
GCN 2.0
Turing
Foundry
TSMC
TSMC
Process Size
28 nm
12 nm
Transistors
6.2 billion
4.7 billion
Die Size
438 mm²
200 mm²
Board Design
TDP
275W
31W
Suggested PSU
600 W
—
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
None
Graphics Features
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.3
Shader Model
6.3
6.6
CUDA
—
7.5
Benchmark
3DMark Time Spy
3,964
—
3DMark Time Spy Extreme
1,931
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.