Radeon HD 6870 X2 vs GeForce GTX 980 SLI Mobile

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking114not rated
Place by popularitynot in top-100not in top-100
Power efficiency8.16no data
ArchitectureMaxwell (2014−2017)TeraScale 2 (2009−2015)
GPU code nameN16E-GXX SLIBarts
Market segmentLaptopDesktop
Release date22 September 2015 (9 years ago)8 July 2011 (13 years ago)
Launch price (MSRP)no data$520

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores40961120
Core clock speed1126 MHz900 MHz
Boost clock speed1228 MHzno data
Number of transistors10400 Million1,700 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)330 Watt300 Watt
Texture fill rateno data50.40
Floating-point processing powerno data2.016 TFLOPS
ROPsno data32
TMUsno data56

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizelargeno data
Interfaceno dataPCIe 2.0 x16
Lengthno data304 mm
Widthno data2-slot
SLI options+-

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR5
Maximum RAM amount2x 8 GB1 GB
Memory bus width256 Bit256 Bit
Memory clock speed3500 MHz1050 MHz
Memory bandwidthno data134.4 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectorsno data2x DVI, 1x HDMI, 2x mini-DisplayPort
HDMI-+
G-SYNC support+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12_111.2 (11_0)
Shader Modelno data5.0
OpenGLno data4.4
OpenCLno data1.2
Vulkan-N/A
CUDA+-

Pros & cons summary


Recency 22 September 2015 8 July 2011
Chip lithography 28 nm 40 nm
Power consumption (TDP) 330 Watt 300 Watt

GTX 980 SLI Mobile has an age advantage of 4 years, and a 42.9% more advanced lithography process.

HD 6870 X2, on the other hand, has 10% lower power consumption.

We couldn't decide between GeForce GTX 980 SLI Mobile and Radeon HD 6870 X2. We've got no test results to judge.

Be aware that GeForce GTX 980 SLI Mobile is a notebook card while Radeon HD 6870 X2 is a desktop one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce GTX 980 SLI Mobile
GeForce GTX 980 SLI Mobile
AMD Radeon HD 6870 X2
Radeon HD 6870 X2

Comparisons with similar GPUs

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Community ratings

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3.3 66 votes

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Questions & comments

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