Home GPU Comparison AMD Radeon RX 550X vs AMD Radeon R9 280X2

AMD Radeon RX 550X vs AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 's Advantages
Boost Clock has increased by 18% (1183MHz vs 1000MHz)
More VRAM (4GB vs 3GB)
Lower TDP (50W vs 375W)
AMD Radeon R9 280X2 's Advantages
Larger VRAM bandwidth (288.0GB/s vs 96.00GB/s)
1536 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 550X
1.211 TFLOPS
Radeon R9 280X2 +238%
4.096 TFLOPS
VS

Graphics Card

Dec 2018
Release Date
Unknown
Polaris
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

1100 MHz
Base Clock
950 MHz
1183 MHz
Boost Clock
1000 MHz
1500 MHz
Memory Clock
1500 MHz

Memory

4GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
384bit
96.00GB/s
Bandwidth
288.0GB/s

Render Config

8
Compute Units
32
-
-
-
512
Shading Units
2048
32
TMUs
128
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

18.93 GPixel/s
Pixel Rate
32.00 GPixel/s
37.86 GTexel/s
Texture Rate
128.0 GTexel/s
1211 GFLOPS
FP16 (half)
-
1211 GFLOPS
FP32 (float)
4.096 TFLOPS
75.71 GFLOPS
FP64 (double)
1024 GFLOPS

Board Design

50W
TDP
375W
250 W
Suggested PSU
750 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
6x mini-DisplayPort 1.2
None
Power Connectors
3x 8-pin

Graphics Processor

Lexa
GPU Name
Tahiti
Lexa PRO (215-0904018)
GPU Variant
Tahiti XTL (215-0821065)
GCN 4.0
Architecture
GCN 1.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
2.2 billion
Transistors
4.313 billion
103 mm²
Die Size
352 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
6.4
Shader Model
5.1

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