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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon R9 285

123%
123%

AMD Radeon R9 270X

82%
82%
AMD Radeon R9 285 is approximately 41% faster

Technical Specifications

SpecificationAMD Radeon R9 285AMD Radeon R9 270X
Graphics ProcessorDifferent
Tonga
Curacao
CoresDifferent
1792
1280
TMUsDifferent
112
80
ROPs
32
32
Memory Size
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureAMD Radeon R9 285AMD Radeon R9 270X
GPU NameDifferent
Tonga
Curacao
GPU VariantDifferent
Tonga PRO(215-0851128)
Curacao XT(215-0848004)
ArchitectureDifferent
GCN 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
TransistorsDifferent
5,000 million
2,800 million
DensityDifferent
13.7M / mm²
13.2M / mm²
Die SizeDifferent
366 mm²
212 mm²
Chip PackageDifferent
N/A
FCBGA-1737

Graphics Card

FeatureAMD Radeon R9 285AMD Radeon R9 270X
Release DateDifferent
Sep 2nd, 2014
Oct 8th, 2013
Generation
Volcanic Islands(R9 200)
Volcanic Islands(R9 200)
Predecessor
Sea Islands
Sea Islands
Successor
Pirate Islands
Pirate Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
249 USD
199 USD
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
ReviewsDifferent
59 in our database
90 in our database

Clock Speeds

FeatureAMD Radeon R9 285AMD Radeon R9 270X
GPU ClockDifferent
918 MHz
N/A
Memory ClockDifferent
1375 MHz5.5 Gbps effective
1400 MHz5.6 Gbps effective
Base ClockDifferent
N/A
1000 MHz
Boost ClockDifferent
N/A
1050 MHz

Memory

FeatureAMD Radeon R9 285AMD Radeon R9 270X
Memory Size
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
176.0 GB/s
179.2 GB/s

Render Config

FeatureAMD Radeon R9 285AMD Radeon R9 270X
Shading UnitsDifferent
1792
1280
TMUsDifferent
112
80
ROPs
32
32
Compute UnitsDifferent
28
20
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB

Theoretical Performance

FeatureAMD Radeon R9 285AMD Radeon R9 270X
Pixel RateDifferent
29.38 GPixel/s
33.60 GPixel/s
Texture RateDifferent
102.8 GTexel/s
84.00 GTexel/s
FP16 (half)Different
3.290 TFLOPS (1:1)
N/A
FP32 (float)Different
3.290 TFLOPS
2.688 TFLOPS
FP64 (double)Different
205.6 GFLOPS (1:16)
168.0 GFLOPS (1:16)

Board Design

FeatureAMD Radeon R9 285AMD Radeon R9 270X
Slot Width
Dual-slot
Dual-slot
LengthDifferent
221 mm8.7 inches
241 mm9.5 inches
Height
109 mm4.3 inches
109 mm4.3 inches
Width
36 mm1.4 inches
36 mm1.4 inches
TDPDifferent
190 W
180 W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
2x 6-pin
Board NumberDifferent
C766
C631, 109-C63257-00A_02, 109-C63257-12_02

Graphics Features

FeatureAMD Radeon R9 285AMD Radeon R9 270X
DirectXDifferent
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCLDifferent
2.1
2.1 (1.2)
Vulkan
1.2.170
1.2.170
Shader ModelDifferent
6.5
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
50
Detailed Features

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