AMD · GCN 1 · 2012

Radeon HD 7870 GHz Edition (Pitcairn XT)

Memory2 GB11 of 181 in Radeon HD
Power175 W25 of 156 by higher draw in Radeon HD
Shaders1,28021 of 178 in Radeon HD
Launch price$35015 of 63 in Radeon HD

Silicon, made visible

Die area is drawn against the largest recorded die in the catalog. Shader dots use a labeled, card-specific ratio so both early and modern GPUs remain legible.

212 mm² die · 1,280 shadersDie area drawn to scale against the catalog maximum of 1,540 square millimeters. Each dot = 16 shaders.212 mm² die · 1,280 shadersEach dot = 16 shadersDashed frame = largest catalog die (1,540 mm²)

Specifications

Memory

Capacity
2 GB
Type
GDDR5
Bus width
256 bit
Memory clock
1,200 MHz
Bandwidth
153.6 GB/s

Compute

Shaders
1,280
TMUs
80
ROPs
32
FP32
2,560 GFLOPS
FP64
160 GFLOPS
Pixel fill rate
32 GP/s
Texture fill rate
80 GT/s

Board

TDP
175 W
Bus interface
PCIe 3.0 ×16
Form factor
desktop
Launch MSRP
350 USD

Physical

Architecture
GCN 1
Process
28 nm
Transistors
2.8 billion
Die size
212 mm²
Series
Radeon HD
Launch date
March 1, 2012

Not recorded by the source: generation, codename, sm count and base clock, or 2 further fields.

Catalog context

Within its series, the Radeon HD 7870 GHz Edition (Pitcairn XT) ranks 12th of 120 for FP32 throughput and 11th of 181 for memory capacity. Its 175 W TDP is above the 75 W PCIe slot-power ceiling.

Source: Wikipedia, revision 1364362273 · catalog loaded 2026-08-16