# Radeon R9 255

> AMD · GCN 1.0

Discontinued

Canonical: https://gpuninja.com/chips/radeon-r9-255
Data as of: 2026-10-11T17:16:00Z
Path: Home › GPU chips

> **Discontinued.** Discontinued on 22 Jun 2021. This page is a preserved snapshot of the last recorded specs, prices and benchmark results.

- Specs verified: 11 Oct 2026, 17:16 UTC

## Specifications

- Vendor: AMD (Verified · source pci-ids.ucw.cz · retrieved 11 Oct 2026, 16:35 UTC · checked 11 Oct 2026, 17:16 UTC)
- Architecture: GCN 1.0 (Verified · source en.wikipedia.org · retrieved 11 Oct 2026, 16:38 UTC · checked 11 Oct 2026, 17:16 UTC)
- Die: Cape Verde (Verified · source pci-ids.ucw.cz · retrieved 11 Oct 2026, 16:35 UTC · checked 11 Oct 2026, 17:16 UTC)
- Process: TSMC 28 nm (Verified · source en.wikipedia.org · retrieved 11 Oct 2026, 16:38 UTC · checked 11 Oct 2026, 17:16 UTC)
- Shader cores: 512 (Verified · source web.archive.org · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- Tensor cores: None
- RT cores: None
- Memory bus: 128-bit (Verified · source benchmark.pl · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- Max VRAM: 2 GB (Verified · source web.archive.org · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- Reference boost clock: 930 MHz (Verified · source web.archive.org · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- Reference TDP: Unknown
- Host interface: PCIe 3.0 (Verified · source web.archive.org · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- Launch MSRP: No public MSRP
- Launch date: 1 Dec 2013 (Unverified · source benchmark.pl · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- Segment: Consumer (Verified · source web.archive.org · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- PCI IDs: 1002:6835 (Verified · source pci-ids.ucw.cz · retrieved 11 Oct 2026, 16:35 UTC · checked 11 Oct 2026, 17:16 UTC)
- Status: Discontinued on 22 Jun 2021 (Verified · source tomshardware.com · retrieved 11 Oct 2026, 16:38 UTC · checked 11 Oct 2026, 17:16 UTC)

## Performance

- Memory bandwidth: 104 GB/s (Verified · source web.archive.org · retrieved 11 Oct 2026, 16:37 UTC · checked 11 Oct 2026, 17:16 UTC)
- FP32 compute: 0.95 TFLOPS (Unverified · source en.wikipedia.org · retrieved 11 Oct 2026, 16:36 UTC · checked 11 Oct 2026, 17:16 UTC)
- FP16 compute: Not supported
- BF16 compute: Not supported
- FP8 compute: Not supported
- FP4 compute: Not supported
- INT8 compute: Not supported

## Boards built on this chip

Board, Chip, VRAM, TDP, Length, Slots, Price, Stock

No boards recorded for this chip.

## Benchmarks

No benchmark results recorded.

## Sources

- https://pci-ids.ucw.cz/v2.2/pci.ids — Vendor, Die, PCI IDs; last verified 11 Oct 2026, 17:16 UTC
- https://en.wikipedia.org/wiki/Graphics_Core_Next — Architecture, Process; last verified 11 Oct 2026, 17:16 UTC
- https://web.archive.org/web/20151219010418/http://www.amd.com/en-us/products/graphics/desktop/oem/r9 — Shader cores, Max VRAM, Reference boost clock, Host interface, Segment, Memory bandwidth; last verified 11 Oct 2026, 17:16 UTC
- https://www.benchmark.pl/aktualnosci/amd-radeon-r9-255-260-karta-graficzna-oem-specyfikacja.html — Memory bus, Launch date; last verified 11 Oct 2026, 17:16 UTC
- https://www.tomshardware.com/news/amd-retires-pre-rx-400-gpus — Status; last verified 11 Oct 2026, 17:16 UTC
- https://en.wikipedia.org/wiki/Radeon_200_series — FP32 compute; last verified 11 Oct 2026, 17:16 UTC