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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 4850

116%
116%

AMD Radeon HD 6670

86%
86%
ATI Radeon HD 4850 is approximately 30% faster

Technical Specifications

SpecificationATI Radeon HD 4850AMD Radeon HD 6670
Graphics ProcessorDifferent
RV770
Turks
CoresDifferent
800
480
TMUsDifferent
40
24
ROPsDifferent
16
8
Memory SizeDifferent
512 MB
1024 MB
Memory TypeDifferent
GDDR3
GDDR5
Bus WidthDifferent
256 bit
128 bit

Graphics Processor

FeatureATI Radeon HD 4850AMD Radeon HD 6670
GPU NameDifferent
RV770
Turks
GPU VariantDifferent
RV770 PRO(215-0669065)
Turks XT(215-0803000)
ArchitectureDifferent
TeraScale
TeraScale 2
Foundry
TSMC
TSMC
Process SizeDifferent
55 nm
40 nm
TransistorsDifferent
956 million
716 million
DensityDifferent
3.7M / mm²
6.1M / mm²
Die SizeDifferent
256 mm²
118 mm²
Chip PackageDifferent
HFCBGA-1492
FCBGA-962

Graphics Card

FeatureATI Radeon HD 4850AMD Radeon HD 6670
Release DateDifferent
Jun 25th, 2008
Apr 19th, 2011
GenerationDifferent
Radeon R700(HD 4800)
Northern Islands(HD 6600)
PredecessorDifferent
Radeon R600
Evergreen
SuccessorDifferent
Evergreen
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
199 USD
99 USD
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
ReviewsDifferent
127 in our database
35 in our database

Clock Speeds

FeatureATI Radeon HD 4850AMD Radeon HD 6670
GPU ClockDifferent
625 MHz
800 MHz
Memory ClockDifferent
993 MHz1986 Mbps effective
1000 MHz4 Gbps effective

Memory

FeatureATI Radeon HD 4850AMD Radeon HD 6670
Memory SizeDifferent
512 MB
1024 MB
Memory TypeDifferent
GDDR3
GDDR5
Memory BusDifferent
256 bit
128 bit
BandwidthDifferent
63.55 GB/s
64.00 GB/s

Render Config

FeatureATI Radeon HD 4850AMD Radeon HD 6670
Shading UnitsDifferent
800
480
TMUsDifferent
40
24
ROPsDifferent
16
8
Compute UnitsDifferent
10
6
L1 CacheDifferent
16 KB (per CU)
8 KB (per CU)
L2 Cache
256 KB
256 KB

Theoretical Performance

FeatureATI Radeon HD 4850AMD Radeon HD 6670
Pixel RateDifferent
10.00 GPixel/s
6.400 GPixel/s
Texture RateDifferent
25.00 GTexel/s
19.20 GTexel/s
FP32 (float)Different
1,000.0 GFLOPS
768.0 GFLOPS
FP64 (double)Different
200.0 GFLOPS (1:5)
N/A

Board Design

FeatureATI Radeon HD 4850AMD Radeon HD 6670
Slot Width
Single-slot
Single-slot
LengthDifferent
246 mm9.7 inches
168 mm6.6 inches
TDPDifferent
110 W
66 W
Suggested PSUDifferent
300 W
250 W
OutputsDifferent
2x DVI1x S-Video
1x DVI1x HDMI 1.3a1x VGA
Power ConnectorsDifferent
1x 6-pin
None
Board NumberDifferent
109-B50131-00
109-C33437-00

Graphics Features

FeatureATI Radeon HD 4850AMD Radeon HD 6670
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
45
Detailed Features

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