Radeon Sky 900 vs HD 7870 XT

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Primary details

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

Place in the ranking415not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.61no data
Power efficiency4.30no data
ArchitectureGCN 1.0 (2011−2020)GCN 1.0 (2011−2020)
GPU code nameTahitiTahiti
Market segmentDesktopWorkstation
Release date19 November 2012 (12 years ago)27 March 2013 (11 years ago)
Launch price (MSRP)$270 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores15363584
Core clock speed925 MHz825 MHz
Boost clock speed975 MHz950 MHz
Number of transistors4,313 million4,313 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)185 Watt300 Watt
Texture fill rate93.60106.4
Floating-point processing power2.995 TFLOPS3.405 TFLOPS
ROPs3232
TMUs96112

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).

Bus supportno dataPCIe 3.0
InterfacePCIe 3.0 x16PCIe 3.0 x16
Length267 mm305 mm
Width2-slot2-slot
Form factorno datafull height / full length
Supplementary power connectors2x 6-pin2x 8-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 amount2 GB6 GB
Memory bus width256 Bit384 Bit
Memory clock speed1500 MHz1250 MHz
Memory bandwidth192.0 GB/s480 GB/s

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 Connectors1x DVI, 1x HDMI, 2x mini-DisplayPort1x DVI, 1x mini-DisplayPort
HDMI+-
Dual-link DVI support-+

API compatibility

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

DirectX12 (11_1)12 (11_1)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1311.2.131

Pros & cons summary


Recency 19 November 2012 27 March 2013
Maximum RAM amount 2 GB 6 GB
Power consumption (TDP) 185 Watt 300 Watt

HD 7870 XT has 62.2% lower power consumption.

Sky 900, on the other hand, has an age advantage of 4 months, and a 200% higher maximum VRAM amount.

We couldn't decide between Radeon HD 7870 XT and Radeon Sky 900. We've got no test results to judge.

Be aware that Radeon HD 7870 XT is a desktop card while Radeon Sky 900 is a workstation 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 HD 7870 XT
Radeon HD 7870 XT
AMD Radeon Sky 900
Radeon Sky 900

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4 38 votes

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5 1 vote

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Questions & comments

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