AMD Radeon R9 270X vs AMD Radeon 550X
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 270X 's Advantages
Larger VRAM bandwidth (179.2GB/s vs 112.0GB/s)
768 additional rendering cores
AMD Radeon 550X 's Advantages
Released 5 years and 5 months late
Boost Clock has increased by 16% (1218MHz vs 1050MHz)
Lower TDP (50W vs 180W)
Score
Benchmark
FP32 (float)
Radeon R9 270X
+115%
2.688 TFLOPS
Radeon 550X
1.247 TFLOPS
Graphics Card
Oct 2013
Release Date
Mar 2019
Volcanic Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
1000 MHz
Base Clock
1082 MHz
1050 MHz
Boost Clock
1218 MHz
1400 MHz
Memory Clock
1750 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
179.2GB/s
Bandwidth
112.0GB/s
Render Config
20
Compute Units
8
-
-
-
1280
Shading Units
512
80
TMUs
32
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
33.60 GPixel/s
Pixel Rate
19.49 GPixel/s
84.00 GTexel/s
Texture Rate
38.98 GTexel/s
-
FP16 (half)
1247 GFLOPS
2.688 TFLOPS
FP32 (float)
1247 GFLOPS
168.0 GFLOPS
FP64 (double)
77.95 GFLOPS
Board Design
180W
TDP
50W
450 W
Suggested PSU
250 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x HDMI 2.0b
1x DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Processor
Curacao
GPU Name
Lexa
Curacao XT
(215-0848004)
GPU Variant
Lexa PRO
(215-0904018)
GCN 1.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
2.8 billion
Transistors
2.2 billion
212 mm²
Die Size
103 mm²
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
6.4
