Radeon HD 6870 1600SP Edition vs Pro 555X

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Primary details

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

Place in the ranking497not rated
Place by popularitynot in top-100not in top-100
Power efficiency8.07no data
ArchitectureGCN 4.0 (2016−2020)TeraScale 2 (2009−2015)
GPU code namePolaris 21Cypress
Market segmentMobile workstationDesktop
Release date16 July 2018 (6 years ago)14 January 2013 (11 years ago)

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 cores7681600
Core clock speed907 MHz850 MHz
Number of transistors3,000 million2,154 million
Manufacturing process technology14 nm40 nm
Power consumption (TDP)75 Watt175 Watt
Texture fill rate43.5468.00
Floating-point processing power1.393 TFLOPS2.72 TFLOPS
ROPs1632
TMUs4880

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
InterfacePCIe 3.0 x8PCIe 2.0 x16
Lengthno data282 mm
Widthno data2-slot
Supplementary power connectorsNone2x 6-pin

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 amount4 GB1 GB
Memory bus width128 Bit256 Bit
Memory clock speed1275 MHz1050 MHz
Memory bandwidth81.6 GB/s134.4 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 outputs2x DVI, 1x HDMI, 2x mini-DisplayPort
HDMI-+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

FreeSync+-

API compatibility

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

DirectX12 (12_0)11.2 (11_0)
Shader Model6.45.0
OpenGL4.64.4
OpenCL2.01.2
Vulkan1.2.131N/A

Pros & cons summary


Recency 16 July 2018 14 January 2013
Maximum RAM amount 4 GB 1 GB
Chip lithography 14 nm 40 nm
Power consumption (TDP) 75 Watt 175 Watt

Pro 555X has an age advantage of 5 years, a 300% higher maximum VRAM amount, a 185.7% more advanced lithography process, and 133.3% lower power consumption.

We couldn't decide between Radeon Pro 555X and Radeon HD 6870 1600SP Edition. We've got no test results to judge.

Be aware that Radeon Pro 555X is a mobile workstation card while Radeon HD 6870 1600SP Edition 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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AMD Radeon Pro 555X
Radeon Pro 555X
AMD Radeon HD 6870 1600SP Edition
Radeon HD 6870 1600SP Edition

Comparisons with similar GPUs

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Community ratings

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3.8 165 votes

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1.7 6 votes

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Questions & comments

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