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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon HD 6450

35%
35%

AMD Radeon HD 6670

285%
285%
AMD Radeon HD 6670 is approximately 250% faster

Technical Specifications

SpecificationAMD Radeon HD 6450AMD Radeon HD 6670
Graphics ProcessorDifferent
Caicos
Turks
CoresDifferent
160
480
TMUsDifferent
8
24
ROPsDifferent
4
8
Memory SizeDifferent
512 MB
1024 MB
Memory TypeDifferent
GDDR3
GDDR5
Bus WidthDifferent
64 bit
128 bit

Graphics Processor

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
GPU NameDifferent
Caicos
Turks
GPU VariantDifferent
Caicos PRO
Turks XT(215-0803000)
Architecture
TeraScale 2
TeraScale 2
Foundry
TSMC
TSMC
Process Size
40 nm
40 nm
TransistorsDifferent
370 million
716 million
DensityDifferent
5.5M / mm²
6.1M / mm²
Die SizeDifferent
67 mm²
118 mm²
Chip PackageDifferent
FCBGA-631
FCBGA-962

Graphics Card

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
Release DateDifferent
Apr 7th, 2011
Apr 19th, 2011
GenerationDifferent
Northern Islands(HD 6400)
Northern Islands(HD 6600)
Predecessor
Evergreen
Evergreen
Successor
Southern Islands
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
55 USD
99 USD
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
ReviewsDifferent
14 in our database
35 in our database

Clock Speeds

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
GPU ClockDifferent
625 MHz
800 MHz
Memory ClockDifferent
500 MHz1000 Mbps effective
1000 MHz4 Gbps effective

Memory

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
Memory SizeDifferent
512 MB
1024 MB
Memory TypeDifferent
GDDR3
GDDR5
Memory BusDifferent
64 bit
128 bit
BandwidthDifferent
8.000 GB/s
64.00 GB/s

Render Config

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
Shading UnitsDifferent
160
480
TMUsDifferent
8
24
ROPsDifferent
4
8
Compute UnitsDifferent
2
6
L1 Cache
8 KB (per CU)
8 KB (per CU)
L2 CacheDifferent
128 KB
256 KB

Theoretical Performance

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
Pixel RateDifferent
2.500 GPixel/s
6.400 GPixel/s
Texture RateDifferent
5.000 GTexel/s
19.20 GTexel/s
FP32 (float)Different
200.0 GFLOPS
768.0 GFLOPS

Board Design

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
Slot Width
Single-slot
Single-slot
Length
168 mm6.6 inches
168 mm6.6 inches
TDPDifferent
18 W
66 W
Suggested PSUDifferent
200 W
250 W
Outputs
1x DVI1x HDMI 1.3a1x VGA
1x DVI1x HDMI 1.3a1x VGA
Power Connectors
None
None
Board NumberDifferent
109-C26037-00A
109-C33437-00

Graphics Features

FeatureAMD Radeon HD 6450AMD Radeon HD 6670
DirectX
11.2 (11_0)
11.2 (11_0)
OpenGL
4.4
4.4
OpenCL
1.2
1.2
Vulkan
N/A
N/A
Shader Model
5.0
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
44
Detailed Features

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