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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 5870

129%
129%

AMD Radeon HD 6850

78%
78%
ATI Radeon HD 5870 is approximately 51% faster

Technical Specifications

SpecificationATI Radeon HD 5870AMD Radeon HD 6850
Graphics ProcessorDifferent
Cypress
Barts
CoresDifferent
1600
960
TMUsDifferent
80
48
ROPs
32
32
Memory Size
1024 MB
1024 MB
Memory Type
GDDR5
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureATI Radeon HD 5870AMD Radeon HD 6850
GPU NameDifferent
Cypress
Barts
GPU VariantDifferent
Cypress XT(215-0735033)
Barts PRO(215-0798006)
Architecture
TeraScale 2
TeraScale 2
Foundry
TSMC
TSMC
Process Size
40 nm
40 nm
TransistorsDifferent
2,154 million
1,700 million
DensityDifferent
6.4M / mm²
6.7M / mm²
Die SizeDifferent
334 mm²
255 mm²
Chip PackageDifferent
N/A
HFCBGA-1737

Graphics Card

FeatureATI Radeon HD 5870AMD Radeon HD 6850
Release DateDifferent
Sep 23rd, 2009
Oct 21st, 2010
GenerationDifferent
Evergreen(HD 5800)
Northern Islands(HD 6800)
PredecessorDifferent
Radeon R700
Evergreen
SuccessorDifferent
Northern Islands
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
399 USD
179 USD
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
ReviewsDifferent
171 in our database
105 in our database

Clock Speeds

FeatureATI Radeon HD 5870AMD Radeon HD 6850
GPU ClockDifferent
850 MHz
775 MHz
Memory ClockDifferent
1200 MHz4.8 Gbps effective
1000 MHz4 Gbps effective

Memory

FeatureATI Radeon HD 5870AMD Radeon HD 6850
Memory Size
1024 MB
1024 MB
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
153.6 GB/s
128.0 GB/s

Render Config

FeatureATI Radeon HD 5870AMD Radeon HD 6850
Shading UnitsDifferent
1600
960
TMUsDifferent
80
48
ROPs
32
32
Compute UnitsDifferent
20
12
L1 Cache
8 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB

Theoretical Performance

FeatureATI Radeon HD 5870AMD Radeon HD 6850
Pixel RateDifferent
27.20 GPixel/s
24.80 GPixel/s
Texture RateDifferent
68.00 GTexel/s
37.20 GTexel/s
FP32 (float)Different
2.720 TFLOPS
1,488.0 GFLOPS
FP64 (double)Different
544.0 GFLOPS (1:5)
N/A

Board Design

FeatureATI Radeon HD 5870AMD Radeon HD 6850
Slot Width
Dual-slot
Dual-slot
LengthDifferent
280 mm11 inches
198 mm7.8 inches
HeightDifferent
111 mm4.4 inches
N/A
WidthDifferent
37 mm1.5 inches
N/A
TDPDifferent
188 W
127 W
Suggested PSUDifferent
450 W
300 W
OutputsDifferent
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power ConnectorsDifferent
2x 6-pin
1x 6-pin
Board NumberDifferent
109-C00137-00A, 109-C00137-00C
109-C22301-00B

Graphics Features

FeatureATI Radeon HD 5870AMD Radeon HD 6850
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
47
Detailed Features

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