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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon HD 6450

5%
5%

AMD Radeon R9 390

2028%
2028%
AMD Radeon R9 390 is approximately 2023% faster

Technical Specifications

SpecificationAMD Radeon HD 6450AMD Radeon R9 390
Graphics ProcessorDifferent
Caicos
Grenada
CoresDifferent
160
2560
TMUsDifferent
8
160
ROPsDifferent
4
64
Memory SizeDifferent
512 MB
8 GB
Memory TypeDifferent
GDDR3
GDDR5
Bus WidthDifferent
64 bit
512 bit

Graphics Processor

FeatureAMD Radeon HD 6450AMD Radeon R9 390
GPU NameDifferent
Caicos
Grenada
GPU VariantDifferent
Caicos PRO
Grenada PRO(215-0880030)
ArchitectureDifferent
TeraScale 2
GCN 2.0
Foundry
TSMC
TSMC
Process SizeDifferent
40 nm
28 nm
TransistorsDifferent
370 million
6,200 million
DensityDifferent
5.5M / mm²
14.2M / mm²
Die SizeDifferent
67 mm²
438 mm²
Chip PackageDifferent
FCBGA-631
N/A

Graphics Card

FeatureAMD Radeon HD 6450AMD Radeon R9 390
Release DateDifferent
Apr 7th, 2011
Jun 18th, 2015
GenerationDifferent
Northern Islands(HD 6400)
Pirate Islands(R9 300)
PredecessorDifferent
Evergreen
Volcanic Islands
SuccessorDifferent
Southern Islands
Arctic Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
55 USD
329 USD
Bus InterfaceDifferent
PCIe 2.0 x16
PCIe 3.0 x16
ReviewsDifferent
14 in our database
35 in our database

Clock Speeds

FeatureAMD Radeon HD 6450AMD Radeon R9 390
GPU ClockDifferent
625 MHz
1000 MHz
Memory ClockDifferent
500 MHz1000 Mbps effective
1500 MHz6 Gbps effective

Memory

FeatureAMD Radeon HD 6450AMD Radeon R9 390
Memory SizeDifferent
512 MB
8 GB
Memory TypeDifferent
GDDR3
GDDR5
Memory BusDifferent
64 bit
512 bit
BandwidthDifferent
8.000 GB/s
384.0 GB/s

Render Config

FeatureAMD Radeon HD 6450AMD Radeon R9 390
Shading UnitsDifferent
160
2560
TMUsDifferent
8
160
ROPsDifferent
4
64
Compute UnitsDifferent
2
40
L1 CacheDifferent
8 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
128 KB
1024 KB

Theoretical Performance

FeatureAMD Radeon HD 6450AMD Radeon R9 390
Pixel RateDifferent
2.500 GPixel/s
64.00 GPixel/s
Texture RateDifferent
5.000 GTexel/s
160.0 GTexel/s
FP32 (float)Different
200.0 GFLOPS
5.120 TFLOPS
FP64 (double)Different
N/A
640.0 GFLOPS (1:8)

Board Design

FeatureAMD Radeon HD 6450AMD Radeon R9 390
Slot WidthDifferent
Single-slot
Dual-slot
LengthDifferent
168 mm6.6 inches
275 mm10.8 inches
TDPDifferent
18 W
275 W
Suggested PSUDifferent
200 W
600 W
OutputsDifferent
1x DVI1x HDMI 1.3a1x VGA
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power ConnectorsDifferent
None
1x 6-pin + 1x 8-pin
Board NumberDifferent
109-C26037-00A
109-C67157-00_02, C679
HeightDifferent
N/A
109 mm4.3 inches
WidthDifferent
N/A
36 mm1.4 inches

Graphics Features

FeatureAMD Radeon HD 6450AMD Radeon R9 390
DirectXDifferent
11.2 (11_0)
12 (12_0)
OpenGLDifferent
4.4
4.6
OpenCLDifferent
1.2
2.1
VulkanDifferent
N/A
1.2.170
Shader ModelDifferent
5.0
6.5

Comparison Summary

7
Specifications Compared
8
Feature Categories
47
Detailed Features

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