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AMD Durango

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Durango
X871363-001
X871363-001
Die Shot
Die Shot
AMD's Durango GPU uses the GCN 1.0 architecture and is made using a 28 nm production process at TSMC. With a die size of 363 mm² and a transistor count of 5,000 million it is a large chip. Durango supports DirectX 11.2 (Feature Level 11_0). For GPU compute applications, OpenCL version 1.2 can be used. It features 768 shading units, 48 texture mapping units and 16 ROPs.

Graphics Processor

GPU Name
Durango
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
5,000 million
Density
13.8M / mm²
Die Size
363 mm²
Released
Nov 22nd, 2013

Graphics Features

DirectX
11.2 (11_0)
OpenGL
N/A
OpenCL
1.2
Vulkan
1.1
Shader Model
5.1

Render Config

Shading Units
768
TMUs
48
ROPs
16
Compute Units
12
Max. TDP
95 W

All GCN 1.0 GPUs

AMD GPU Architecture History

Graphics cards using the AMD Durango GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
AMD Xbox One GPU X871363-001 8 GB 768 48 16 853 MHz 1066 MHz

Durango GPU Notes

Architecture Codename: Sea Islands
CLRX Version: GCN 1.0

Instruction issue rate:
12 SCs * 4 SIMDs * 16 threads/clock = 768 ops/clock

FLOPs:
768 ops/clock * (1 mul + 1 add) * 800 MHz = 1.2 TFLOPS

Interpolation:
(768 ops/clock / 2 ops) * 800 MHz = 307.2 Gfloat/sec

Triangle rate:
2 tri/clock * 800 MHz = 1.6 Gtri/sec

Vertex rate:
2 vert/clock * 800 MHz = 1.6 Gvert/sec

Vertex/buffer fetch rate: (4 bytes)
4 elements/clock * 12 SCs * 800 MHz = 38.4 Gelement/sec

Vertex/Buffer data rate from cache:
38.4 Gelements/sec * 4 bytes = 153.6 GB/sec

Peak throughput from main RAM:
68.2 GB/sec

Peak throughput from ESRAM:
128 bytes/clock * 800 MHz = 102.4 GB/sec

ESRAM size:
32 MB

GSM size:
64 KB

LSM size:
12 SCs * 64 KB = 768 KB

L2 cache size:
4 x 128 KB = 512 KB (shared)

Bilinear fetch rate: (4 bytes)
4 fetches/clock * 12 SCs * 800 MHz = 38.4 Gtexels/sec

Bilinear data rate from cache:
38.4 Gtexels/sec * 4 bytes = 153.6 GB/sec

L1 cache size:
16 KB/SC * 12 SCs = 192 KB (nonshared)

Pixel clear rate:
1 8×8 tile/clock * 4 DBs * 800 MHz = 204.8 Gpixel/sec

Pixel hierarchical Z Rate:
1 8×8 tile/clock * 4 DBs * 800 MHz = 204.8 Gpixel/sec

Sample Z rate:
16 /clock * 4 DBs * 800 MHz = 51.2 Gsample/sec

Pixel rate:
4 /clock * 4 DBs * 800 MHz = 12.8 Gpixel/sec