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AMD Xbox One S GPU

Graphics Processor
Durango 2
Cores
768
TMUs
48
ROPs
16
Memory Size
8 GB
Memory Type
DDR3
Bus Width
256 bit
GPU Chip
GPU
Front 2
Front 2
Back
Back
The Xbox One S GPU is a high-end gaming console graphics solution by AMD, launched on August 2nd, 2016. Built on the 16 nm process, and based on the Durango 2 graphics processor, in its M1004145-001 variant, the device supports DirectX 12. The Durango 2 graphics processor is an average sized chip with a die area of 240 mm² and 5,000 million transistors. It features 768 shading units, 48 texture mapping units, and 16 ROPs. AMD includes 8 GB DDR3 memory, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 914 MHz, memory is running at 1066 MHz.
Its power draw is rated at 95 W maximum. The console's dimensions are 295 mm x 230 mm x 64 mm, and it features a igp cooling solution. Its price at launch was 399 US Dollars.

Graphics Processor

GPU Name
Durango 2
GPU Variant
M1004145-001
Architecture
GCN 1.0
Foundry
TSMC
Process Size
16 nm
Transistors
5,000 million
Die Size
240 mm²

Graphics Card

Release Date
Aug 2nd, 2016
Generation
Console GPU
(Microsoft)
Production
Active
Launch Price
399 USD

Clock Speeds

GPU Clock
914 MHz
Memory Clock
1066 MHz
2.1 Gbps effective

Memory

Memory Size
8 GB
Memory Type
DDR3
Memory Bus
256 bit
Bandwidth
68.22 GB/s

Render Config

Shading Units
768
TMUs
48
ROPs
16
Compute Units
12

Theoretical Performance

Pixel Rate
14.62 GPixel/s
Texture Rate
43.87 GTexel/s
FP32 (float) performance
1,404 GFLOPS

Board Design

Length
295 mm
11.6 inches
Width
230 mm
9.1 inches
Height
64 mm
2.5 inches
Weight
2.9 kg (6.4 lbs)
TDP
95 W
Outputs
No outputs

Graphics Features

DirectX
12 (11_1)
OpenGL
N/A
OpenCL
1.2
Vulkan
1.1
Shader Model
5.1

Durango 2 GPU Notes

Architecture Codename: Sea Islands
Codename: Gladius / Bishop
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) * 914 MHz = 1.404 TFLOPS

Interpolation:
(768 ops/clock / 2 ops) * 914 MHz = 350.97 Gfloat/sec

Triangle rate:
2 tri/clock * 914 MHz = 1.828 Gtri/sec

Vertex rate:
2 vert/clock * 914 MHz = 1.828 Gvert/sec

Vertex/buffer fetch rate: (4 bytes)
4 elements/clock * 12 SCs * 914 MHz = 43.872 Gelement/sec

Vertex/Buffer data rate from cache:
43.872 Gelements/sec * 4 bytes = 175.488 GB/sec

Peak throughput from main RAM:
68.2 GB/sec

Peak throughput from ESRAM:
128 bytes/clock * 914 MHz = 116.992 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 * 914 MHz = 43.872 Gtexels/sec

Bilinear data rate from cache:
43.872 Gtexels/sec * 4 bytes = 175.488 GB/sec

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

Pixel clear rate:
1 8×8 tile/clock * 4 DBs * 914 MHz = 233.984 Gpixel/sec

Pixel hierarchical Z Rate:
1 8×8 tile/clock * 4 DBs * 914 MHz = 233.984 Gpixel/sec

Sample Z rate:
16 /clock * 4 DBs * 914 MHz = 58.496 Gsample/sec

Pixel rate:
4 /clock * 4 DBs * 914 MHz = 14.624 Gpixel/sec
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