AMD Radeon RX 550X 8CU vs AMD Radeon R7 450
AMD Radeon RX 550X 8CU
$79
AMD Radeon R7 450
|
512 Shaders
2GB GDDR5
1287MHz
|
512 Shaders
2GB GDDR5
1050MHz
|
|
Peak AI Performance
1.32 TFLOPS
FP16
|
Peak AI Performance
1.08 TFLOPS
FP32
|
|
FP32
1.32 TFLOPS
|
FP32
1.08 TFLOPS
|
|
FP16
1.32 TFLOPS
|
-
-
|
|
Form Factor
PCIe Card
2.0-Slots
|
Form Factor
PCIe Card
-
|
|
TDP
50W
|
TDP
65W
|
|
-
-
|
Power Connectors
1x 6-Pin
|
Peak AI Performance
|
|
Radeon RX 550X 8CU - 1.32 TFLOPS FP16
x1.22
Radeon R7 450 - 1.08 TFLOPS FP32
x1
FP32
|
|
Radeon RX 550X 8CU - 1.32 TFLOPS FP32
x1.22
Radeon R7 450 - 1.08 TFLOPS FP32
x1
|
|
Radeon RX 550X 8CU - 112GB/s
x1.56
Radeon R7 450 - 72GB/s
x1
|
|
Radeon RX 550X 8CU - 50W
x1
Radeon R7 450 - 65W
x1.3
|
GB6 OpenCL N/A
0%
|
|
|
0%
|
0%
|
|
GB6 Vulkan N/A
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
Manufacturer
AMD
|
Manufacturer
AMD
|
|
Chip Designer
AMD
|
Chip Designer
AMD
|
|
Architecture
GCN 4
|
Architecture
GCN 1
|
|
Family
Radeon RX 500
|
Family
Radeon R 400
|
|
Codename
Lexa
Polaris 12
Variant
Polaris 12 XL
|
Codename
Cape Verde
-
Variant
Cape Verde Pro
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
4/11/2018
|
Release Date
6/30/2016
|
|
Foundry
GlobalFoundries
|
Foundry
TSMC
|
|
Fabrication Node
14LPP
|
Fabrication Node
28nm
|
|
Die Size
103 mm²
|
Die Size
123 mm²
|
|
Transistor Count
2.2 Billion
|
Transistor Count
1.5 Billion
|
|
Transistor Density
21.36M/mm²
|
Transistor Density
12.20M/mm²
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
512 Shaders
|
Shading Units
512 Shaders
|
|
Texture Mapping Units
32 TMUs
|
Texture Mapping Units
32 TMUs
|
|
Render Output Units
16 ROPs
|
Render Output Units
16 ROPs
|
|
Compute Units
8 CUs
|
Compute Units
8 CUs
|
|
1100MHz Base
1287MHz
|
-
1050MHz
|
|
Peak AI Performance
1.32 TFLOPS
FP16
|
Peak AI Performance
1.08 TFLOPS
FP32
|
|
FP16
1.32 TFLOPS
|
-
-
|
|
FP32
1.32 TFLOPS
|
FP32
1.08 TFLOPS
|
|
FP64
80 GFLOPS
|
FP64
70 GFLOPS
|
|
Pixel Fillrate
20.592 GPixel/s
|
Pixel Fillrate
16.8 GPixel/s
|
|
Texture Fillrate
41.184 GTexel/s
|
Texture Fillrate
33.6 GTexel/s
|
|
L1
16KB/CU
|
L1
16KB/CU
|
|
L2
512KB Shared
|
L2
256KB Shared
|
|
2GB
GDDR5
|
2GB
GDDR5
|
|
Bus Width
128Bit
|
Bus Width
128Bit
|
|
Clock
1750MHz
Transfer Rate
7GT/s
Bandwidth
112GB/s
|
Clock
1125MHz
Transfer Rate
4.5GT/s
Bandwidth
72GB/s
|
|
TDP
50W
|
TDP
65W
|
|
1x DVI-D Dual-Link
-
1x DisplayPort 1.4
1x HDMI 2.0
|
-
2x DisplayPort 1.2
-
-
|
|
Max Resolution
5120x2880
|
Max Resolution
4096x2160
|
|
Max Resolution Refresh Rate
60Hz
|
Max Resolution Refresh Rate
60Hz
|
|
Variable Refresh Rate
FreeSync
|
Variable Refresh Rate
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
|
Multi Monitor Support
3
|
Multi Monitor Support
3
|
|
Content Protection
HDCP 2.2
|
-
-
|
|
Model
VCE 3.4
|
Model
VCE 1.0
|
|
Codec
AVC (H.264)
HEVC (H.265)
|
Codec
AVC (H.264)
-
|
|
Model
UVD 6.3
|
Model
UVD 4.0
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
AVC (H.264)
HEVC (H.265)
|
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
AVC (H.264)
-
|
|
Direct X
12
Direct 3D
12_0
|
Direct X
12
Direct 3D
11_1
|
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
|
|
Shader Model
6.7
GFX
8
|
Shader Model
6.5
GFX
6
|
|
1x Fan
|
1x Fan
|
|
-
-
|
Power Connectors
1x 6-Pin
|
|
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
8
|
-
-
PCIe Version
3.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
CrossFire XDMA
|
-
-
-
-
|
|
Height
110 mm (4.33 in)
Width
145 mm (5.71 in)
Depth
37 mm (1.46 in)
|
-
-
-
-
-
-
|
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