AMD Radeon HD 6870 X2: specs and benchmarks

AMD Radeon HD 6870 X2

Summary

AMD started Radeon HD 6870 X2 sales 8 July 2011 at a recommended price of $520. This is TeraScale 2 architecture desktop card based on 40 nm manufacturing process and primarily aimed at gamers. 2x 1 GB of GDDR5 memory clocked at 4.2 GHz are supplied, and together with 2x 256 Bit memory interface this creates a bandwidth of 2x 134.4 GB/s.

Compatibility-wise, this is 2-slot card attached via PCIe 2.0 x16 interface. Its manufacturer default version has a length of 304 mm. No additional power connector is required, and power consumption is at 300 Watt.

It provides good gaming and benchmark performance at 27.00 percent of a leader's which is AMD Radeon R9 390 X2.

General info

Of Radeon HD 6870 X2's architecture, market type and release date.
Place in performance rating
 
Architecture
TeraScale 2
 
Code name
Barts
 
Type
Desktop
 
Release date
8 July 2011
 
Launch price (MSRP)
$520
 
of 14999 (Quadro Plex 7000)

Technical specs

Radeon HD 6870 X2's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon HD 6870 X2's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Pipelines
2x 1120
 
of 8192 (Radeon Pro Duo)
Core clock speed
900 MHz
 
Transistor count
1,700 million
 
of 21100
Manufacturing process technology
40 nm
 
of 12
Power consumption (TDP)
300 Watt
 
of 900 (Tesla S2050)
Texture fill rate
2x 50.4 billion/sec
 
of 512 (Radeon Pro Duo)
Floating-point performance
2x 2,016.0 gflops
 
of 16384 (Radeon Pro Duo)

Compatibility, dimensions and requirements

Information on Radeon HD 6870 X2's compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
Interface
PCIe 2.0 x16
 
Length
304 mm
 

Memory specs

Parameters of memory installed on Radeon HD 6870 X2: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
GDDR5
 
Maximum RAM amount
2x 1 GB
 
of 32
Memory bus width
2x 256 Bit
 
of 8192 (Radeon Pro Duo)
Memory clock speed
4200 MHz
 
of 11408 (TITAN Xp)
Memory bandwidth
2x 134.4 GB/s
 
of 1024 (Radeon Pro Duo)

Video outputs and ports

Types and number of video connectors present on Radeon HD 6870 X2.
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
 

Video card benchmarks performance

Non-gaming benchmarks performance of Radeon HD 6870 X2. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
26.55
 
 
3DMark Ice Storm GPU
119108.00
 
 
3DMark Fire Strike Graphics
6890.00
 
 
3DMark 11 Performance GPU
10392.00
 
 
3DMark Vantage Performance
36243.00
 
 
Unigine Heaven 3.0
4803.47
 
 

Relative perfomance

Overall Radeon HD 6870 X2 performance compared to its nearest competitors. All GPU types participate.

NVIDIA equivalent

We believe that the nearest equivalent to Radeon HD 6870 X2 from NVIDIA is GeForce GTX 590, which is nearly equal in speed and lower by 1 position in our rating.

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