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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 4870 X2

40%
40%

AMD Radeon R9 290X

250%
250%
AMD Radeon R9 290X is approximately 210% faster

Technical Specifications

SpecificationATI Radeon HD 4870 X2AMD Radeon R9 290X
Graphics ProcessorDifferent
R700 x2
Hawaii
CoresDifferent
800 x2
2816
TMUsDifferent
40 x2
176
ROPsDifferent
16 x2
64
Memory SizeDifferent
1024 MB x2
4 GB
Memory Type
GDDR5
GDDR5
Bus WidthDifferent
256 bit x2
512 bit

Graphics Processor

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
GPU NameDifferent
R700
Hawaii
GPU VariantDifferent
R700 XT(215-0669045)
Hawaii XT(215-0852000)
ArchitectureDifferent
TeraScale
GCN 2.0
Foundry
TSMC
TSMC
Process SizeDifferent
55 nm
28 nm
TransistorsDifferent
956 million
6,200 million
DensityDifferent
3.7M / mm²
14.2M / mm²
Die SizeDifferent
256 mm²
438 mm²

Graphics Card

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
Release DateDifferent
Aug 12th, 2008
Oct 24th, 2013
GenerationDifferent
Radeon R700(HD 4800)
Volcanic Islands(R9 200)
PredecessorDifferent
Radeon R600
Sea Islands
SuccessorDifferent
Evergreen
Pirate Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
550 USD
549 USD
Bus InterfaceDifferent
PCIe 2.0 x16
PCIe 3.0 x16
ReviewsDifferent
79 in our database
147 in our database

Clock Speeds

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
GPU ClockDifferent
750 MHz
1000 MHz
Memory ClockDifferent
900 MHz3.6 Gbps effective
1250 MHz5 Gbps effective

Memory

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
Memory SizeDifferent
1024 MB
4 GB
Memory Type
GDDR5
GDDR5
Memory BusDifferent
256 bit
512 bit
BandwidthDifferent
115.2 GB/s
320.0 GB/s

Render Config

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
Shading UnitsDifferent
800
2816
TMUsDifferent
40
176
ROPsDifferent
16
64
Compute UnitsDifferent
10
44
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
256 KB
1024 KB

Theoretical Performance

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
Pixel RateDifferent
12.00 GPixel/s
64.00 GPixel/s
Texture RateDifferent
30.00 GTexel/s
176.0 GTexel/s
FP32 (float)Different
1,200.0 GFLOPS
5.632 TFLOPS
FP64 (double)Different
240.0 GFLOPS (1:5)
704.0 GFLOPS (1:8)

Board Design

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
Slot Width
Dual-slot
Dual-slot
LengthDifferent
267 mm10.5 inches
275 mm10.8 inches
HeightDifferent
111 mm4.4 inches
109 mm4.3 inches
WidthDifferent
38 mm1.5 inches
36 mm1.4 inches
TDPDifferent
286 W
290 W
Suggested PSU
600 W
600 W
OutputsDifferent
2x DVI1x S-Video
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin + 1x 8-pin
Board NumberDifferent
109-B50937-00
109-C67157-00_02, 109-C67157-00C_03

Graphics Features

FeatureATI Radeon HD 4870 X2AMD Radeon R9 290X
DirectXDifferent
10.1 (10_1)
12 (12_0)
OpenGLDifferent
3.3
4.6
OpenCLDifferent
1.1
2.1
VulkanDifferent
N/A
1.2.170
Shader ModelDifferent
4.1
6.5

Comparison Summary

7
Specifications Compared
8
Feature Categories
46
Detailed Features

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