Radeon HD 7870 XT

Reference GPU

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At a Glance

Identity
Entry Type	Reference GPU
Official Name	AMD Radeon HD 7870 XT
Architecture	GCN 1.0
Launch Date	2012-11-19
Core Specs
GPU Die	Tahiti
Process Node	TSMC 28 nm
Transistor Count	4.31 billion
Die Size	352 mm²
Stream Processors	1536
TMUs	96
ROPs	32
Base Clock	925 MHz
Boost Clock	975 MHz
Pixel Fillrate	31.2 GP/s
Texture Fillrate	93.6 GT/s
FP32 Throughput	3 TFLOPS
FP64 Throughput	0.75 TFLOPS
Memory
Memory Size	2 GB
Memory Type	GDDR5
Memory Bus Width	256-bit
Memory Clock	1,500 MHz
Memory Bandwidth	192 GB/s
L2 Cache	0.5 MB
L1 Cache	16 KB
Board and Display
TDP / TBP	185 W
Recommended PSU	450 W
Interface	PCIe 3.0 x16
Display Outputs	1x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2
Slot Width	Dual-slot
Card Length	267 mm
Software
Shader Model	5.1
DirectX Support	DirectX 11.1
Vulkan Support	Vulkan 1.2
OpenGL Support	OpenGL 4.6
OpenCL Support	OpenCL 1.2

This GPU Wiki entry is being expanded and source-checked.

This entry is currently a specification record. Historical notes will be added after source review.

Known issues pending source review.

SourcesPartial

Sources reviewed: 2026-06-23

This entry is still being source-checked.

Data confidence and source status

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Verified: core specifications and historical notes have been reviewed against listed sources.
Partial: core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
Imported: spec-only imported entry pending editorial source review.
Needs source review: narrative notes are incomplete until reviewed.

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