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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 4830

294%
294%

AMD Radeon HD 6450

34%
34%
ATI Radeon HD 4830 is approximately 260% faster

Technical Specifications

SpecificationATI Radeon HD 4830AMD Radeon HD 6450
Graphics ProcessorDifferent
RV770
Caicos
CoresDifferent
640
160
TMUsDifferent
32
8
ROPsDifferent
16
4
Memory Size
512 MB
512 MB
Memory Type
GDDR3
GDDR3
Bus WidthDifferent
256 bit
64 bit

Graphics Processor

FeatureATI Radeon HD 4830AMD Radeon HD 6450
GPU NameDifferent
RV770
Caicos
GPU VariantDifferent
RV770 LE(215-0669075)
Caicos PRO
ArchitectureDifferent
TeraScale
TeraScale 2
Foundry
TSMC
TSMC
Process SizeDifferent
55 nm
40 nm
TransistorsDifferent
956 million
370 million
DensityDifferent
3.7M / mm²
5.5M / mm²
Die SizeDifferent
256 mm²
67 mm²
Chip PackageDifferent
HFCBGA-1492
FCBGA-631

Graphics Card

FeatureATI Radeon HD 4830AMD Radeon HD 6450
Release DateDifferent
Oct 21st, 2008
Apr 7th, 2011
GenerationDifferent
Radeon R700(HD 4800)
Northern Islands(HD 6400)
PredecessorDifferent
Radeon R600
Evergreen
SuccessorDifferent
Evergreen
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
130 USD
55 USD
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
ReviewsDifferent
43 in our database
14 in our database

Clock Speeds

FeatureATI Radeon HD 4830AMD Radeon HD 6450
GPU ClockDifferent
575 MHz
625 MHz
Memory ClockDifferent
900 MHz1800 Mbps effective
500 MHz1000 Mbps effective

Memory

FeatureATI Radeon HD 4830AMD Radeon HD 6450
Memory Size
512 MB
512 MB
Memory Type
GDDR3
GDDR3
Memory BusDifferent
256 bit
64 bit
BandwidthDifferent
57.60 GB/s
8.000 GB/s

Render Config

FeatureATI Radeon HD 4830AMD Radeon HD 6450
Shading UnitsDifferent
640
160
TMUsDifferent
32
8
ROPsDifferent
16
4
Compute UnitsDifferent
8
2
L1 CacheDifferent
16 KB (per CU)
8 KB (per CU)
L2 CacheDifferent
256 KB
128 KB

Theoretical Performance

FeatureATI Radeon HD 4830AMD Radeon HD 6450
Pixel RateDifferent
9.200 GPixel/s
2.500 GPixel/s
Texture RateDifferent
18.40 GTexel/s
5.000 GTexel/s
FP32 (float)Different
736.0 GFLOPS
200.0 GFLOPS
FP64 (double)Different
147.2 GFLOPS (1:5)
N/A

Board Design

FeatureATI Radeon HD 4830AMD Radeon HD 6450
Slot Width
Single-slot
Single-slot
LengthDifferent
246 mm9.7 inches
168 mm6.6 inches
HeightDifferent
111 mm4.4 inches
N/A
WidthDifferent
20 mm0.8 inches
N/A
TDPDifferent
95 W
18 W
Suggested PSUDifferent
250 W
200 W
OutputsDifferent
2x DVI1x S-Video
1x DVI1x HDMI 1.3a1x VGA
Power ConnectorsDifferent
1x 6-pin
None
Board NumberDifferent
109-B50131-10
109-C26037-00A

Graphics Features

FeatureATI Radeon HD 4830AMD Radeon HD 6450
DirectXDifferent
10.1 (10_1)
11.2 (11_0)
OpenGLDifferent
3.3
4.4
OpenCLDifferent
1.1
1.2
Vulkan
N/A
N/A
Shader ModelDifferent
4.1
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
47
Detailed Features

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