Home GPU Comparison AMD Radeon RX 550X 640SP vs AMD Radeon R9 380X

AMD Radeon RX 550X 640SP vs AMD Radeon R9 380X

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 4GB VRAM Radeon R9 380X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 640SP 's Advantages
Released 2 years and 5 months late
Boost Clock1071MHz
Lower TDP (60W vs 190W)
AMD Radeon R9 380X 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (182.4GB/s vs 96.00GB/s)
1408 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 550X 640SP
1.371 TFLOPS
Radeon R9 380X +189%
3.973 TFLOPS
VS

Graphics Card

Apr 2018
Release Date
Nov 2015
Polaris
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

1019 MHz
Base Clock
-
1071 MHz
Boost Clock
-
1500 MHz
Memory Clock
1425 MHz

Memory

2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
96.00GB/s
Bandwidth
182.4GB/s

Render Config

10
Compute Units
32
-
-
-
640
Shading Units
2048
40
TMUs
128
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

17.14 GPixel/s
Pixel Rate
31.04 GPixel/s
42.84 GTexel/s
Texture Rate
124.2 GTexel/s
1371 GFLOPS
FP16 (half)
3.973 TFLOPS
1371 GFLOPS
FP32 (float)
3.973 TFLOPS
85.68 GFLOPS
FP64 (double)
248.3 GFLOPS

Board Design

60W
TDP
190W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
2x 6-pin

Graphics Processor

Baffin
GPU Name
Antigua
Baffin LE
GPU Variant
Antigua XT (215-0877016)
GCN 4.0
Architecture
GCN 3.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
3 billion
Transistors
5 billion
123 mm²
Die Size
366 mm²

Graphics Features

12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2
Vulkan
1.2
-
-
-
6.4
Shader Model
6.3

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