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GPU Comparison
AMD Radeon RX 550X vs AMD Radeon HD 6390
AMD Radeon RX 550X vs AMD Radeon HD 6390
VS
AMD Radeon RX 550X
AMD Radeon HD 6390
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 1024MB VRAM Radeon HD 6390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 550X 's Advantages
Released 7 years and 5 months late
Boost Clock1183MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (96.00GB/s vs 16.00GB/s)
192 additional rendering cores
AMD Radeon HD 6390 's Advantages
Lower TDP (39W vs 50W)
Score
Benchmark
FP32 (float)
Radeon RX 550X
+244%
1.211 TFLOPS
Radeon HD 6390
0.352 TFLOPS
Radeon RX 550X
VS
Radeon HD 6390
Graphics Card
Dec 2018
Release Date
Jul 2011
Polaris
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1100 MHz
Base Clock
-
1183 MHz
Boost Clock
-
1500 MHz
Memory Clock
500 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR2
128bit
Memory Bus
128bit
96.00GB/s
Bandwidth
16.00GB/s
Render Config
8
Compute Units
4
-
-
-
512
Shading Units
320
32
TMUs
16
16
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
18.93 GPixel/s
Pixel Rate
4.400 GPixel/s
37.86 GTexel/s
Texture Rate
8.800 GTexel/s
1211 GFLOPS
FP16 (half)
-
1211 GFLOPS
FP32 (float)
352.0 GFLOPS
75.71 GFLOPS
FP64 (double)
-
Board Design
50W
TDP
39W
250 W
Suggested PSU
200 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
None
Power Connectors
None
Graphics Processor
Lexa
GPU Name
Redwood
Lexa PRO (215-0904018)
GPU Variant
Redwood LE
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
2.2 billion
Transistors
0.627 billion
103 mm²
Die Size
104 mm²
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
6.4
Shader Model
5.0
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