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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon HD 7850

144%
144%

AMD Radeon HD 6850

69%
69%
AMD Radeon HD 7850 is approximately 75% faster

Technical Specifications

SpecificationAMD Radeon HD 7850AMD Radeon HD 6850
Graphics ProcessorDifferent
Pitcairn
Barts
CoresDifferent
1024
960
TMUsDifferent
64
48
ROPs
32
32
Memory SizeDifferent
2 GB
1024 MB
Memory Type
GDDR5
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
GPU NameDifferent
Pitcairn
Barts
GPU VariantDifferent
Pitcairn PRO(215-0828062)
Barts PRO(215-0798006)
ArchitectureDifferent
GCN 1.0
TeraScale 2
Foundry
TSMC
TSMC
Process SizeDifferent
28 nm
40 nm
TransistorsDifferent
2,800 million
1,700 million
DensityDifferent
13.2M / mm²
6.7M / mm²
Die SizeDifferent
212 mm²
255 mm²
Chip PackageDifferent
FCBGA-1737
HFCBGA-1737

Graphics Card

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
Release DateDifferent
Mar 5th, 2012
Oct 21st, 2010
GenerationDifferent
Southern Islands(HD 7800)
Northern Islands(HD 6800)
PredecessorDifferent
Northern Islands
Evergreen
SuccessorDifferent
Sea Islands
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
249 USD
179 USD
Bus InterfaceDifferent
PCIe 3.0 x16
PCIe 2.0 x16
ReviewsDifferent
71 in our database
105 in our database

Clock Speeds

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
GPU ClockDifferent
860 MHz
775 MHz
Memory ClockDifferent
1200 MHz4.8 Gbps effective
1000 MHz4 Gbps effective

Memory

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
Memory SizeDifferent
2 GB
1024 MB
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
153.6 GB/s
128.0 GB/s

Render Config

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
Shading UnitsDifferent
1024
960
TMUsDifferent
64
48
ROPs
32
32
Compute UnitsDifferent
16
12
L1 CacheDifferent
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB

Theoretical Performance

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
Pixel RateDifferent
27.52 GPixel/s
24.80 GPixel/s
Texture RateDifferent
55.04 GTexel/s
37.20 GTexel/s
FP32 (float)Different
1.761 TFLOPS
1,488.0 GFLOPS
FP64 (double)Different
110.1 GFLOPS (1:16)
N/A

Board Design

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
Slot Width
Dual-slot
Dual-slot
LengthDifferent
210 mm8.3 inches
198 mm7.8 inches
TDPDifferent
130 W
127 W
Suggested PSU
300 W
300 W
OutputsDifferent
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
1x 6-pin
1x 6-pin
Board NumberDifferent
109-C40147-00, 109-C40337-00A
109-C22301-00B

Graphics Features

FeatureAMD Radeon HD 7850AMD Radeon HD 6850
DirectXDifferent
12 (11_1)
11.2 (11_0)
OpenGLDifferent
4.6
4.4
OpenCLDifferent
2.1 (1.2)
1.2
VulkanDifferent
1.2.170
N/A
Shader ModelDifferent
6.5 (5.1)
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
45
Detailed Features

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