Semiconductor & Computer Engineering
(→Overview) |
|||
| Line 32: | Line 32: | ||
Like the ''PlayStation 4'' and the ''Xbox One'', the ''Xbox One X'' is also powered by a chip based on [[AMD]]'s architectures. The ''Scorpio Engine'' most important goal was achieving true [[4K]] gaming performance according to John Sell, a Distinguished Engineer at Microsoft who presented the chip at [[Hot Chips]] 29. Fabricated on a [[TSMC]]'s [[16 nm process]], the chip contains 7 billion transistors on a 359 mm² die, similar in amount to [[Nvidia]]'s {{nvidia|GTX 1080}} and almost the same size as the original Xbox One SoC (which was 363 mm² on a [[28 nm process]]). | Like the ''PlayStation 4'' and the ''Xbox One'', the ''Xbox One X'' is also powered by a chip based on [[AMD]]'s architectures. The ''Scorpio Engine'' most important goal was achieving true [[4K]] gaming performance according to John Sell, a Distinguished Engineer at Microsoft who presented the chip at [[Hot Chips]] 29. Fabricated on a [[TSMC]]'s [[16 nm process]], the chip contains 7 billion transistors on a 359 mm² die, similar in amount to [[Nvidia]]'s {{nvidia|GTX 1080}} and almost the same size as the original Xbox One SoC (which was 363 mm² on a [[28 nm process]]). | ||
| − | Like the original Xbox One SoC, the chip feature eight Jaguar cores. The cores have been {{amd|Enhanced Jaguar|lightly enhanced|l=arch}} and operate at a higher frequency of 2.3 GHz, but are otherwise mostly identical. It's worth pointing out that [[AMD]] has not commercialized a 16 nm Jaguar processor. | + | Like the original Xbox One SoC, the chip feature eight Jaguar cores. The cores have been {{amd|Enhanced Jaguar|lightly enhanced|l=arch}} and operate at a higher frequency of 2.3 GHz, but are otherwise mostly identical. It's worth pointing out that [[AMD]] has not commercialized a 16 nm Jaguar processor outside of this chip. |
== Cache == | == Cache == | ||
Revision as of 00:21, 19 September 2017
Template:mpu Scorpio Engine is a 64-bit octa-core x86 SoC designed by AMD and Microsoft for their Xbox One X. The chip features eight Enhanced Jaguar cores operating at 2.3 GHz and a custom Arctic Islands-based GPU operating at 1.172 GHz. Fabricated on TSMC's 16FF+, this chip supports 12 (24 for Dev) GiB of 12-channel GDDR5-6800 memory.
Contents
Overview
Like the PlayStation 4 and the Xbox One, the Xbox One X is also powered by a chip based on AMD's architectures. The Scorpio Engine most important goal was achieving true 4K gaming performance according to John Sell, a Distinguished Engineer at Microsoft who presented the chip at Hot Chips 29. Fabricated on a TSMC's 16 nm process, the chip contains 7 billion transistors on a 359 mm² die, similar in amount to Nvidia's GTX 1080 and almost the same size as the original Xbox One SoC (which was 363 mm² on a 28 nm process).
Like the original Xbox One SoC, the chip feature eight Jaguar cores. The cores have been lightly enhanced and operate at a higher frequency of 2.3 GHz, but are otherwise mostly identical. It's worth pointing out that AMD has not commercialized a 16 nm Jaguar processor outside of this chip.
Cache
- Main article: Enhanced Jaguar § Cache
 |
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes. |
||||||||||||||||||||||||
|
|||||||||||||||||||||||||
Memory controller
 |
Integrated Memory Controller
|
|||||||||||||
|
||||||||||||||
Graphics
- Main article: Arctic Islands microarchitecture
Scorpio Engine features a 40 Radeon compute units (CU) operating at 1,172 MHz each capable of 128 FLOP/cycle for a total of 6.00064 TFLOPS raw peak performance. The GPU is capable of 4.688 Giga primitives/second and 187.5 G bilinear texels/second.
| Scorpio Engine GPU | |
|---|---|
| Unified shaders | 2560 (64 × 40 CUs) |
| ROPs | 32 |
| TMUs | 160 |
| Peak Performance | ~6 TFLOPS (6,000,640,000,000 FLOPS) |
| Hardware Accelerated Video Capabilities | ||
|---|---|---|
| Codec | Encode | Decode |
| MPEG-4 AVC (H.264) | 4K @ 60 Hz | ✘ |
| HEVC (H.265) | 4K @ 60 Hz | 4K @ 60 Hz |
| VP9 | 4K @ 60 Hz | ✘ |
Display
Scorpio Engine supports DP 1.2a, HDMI 2.0b, HDCP 2.2, and two-stream MST. 4K, 64-bit, 3-surface resize and blending is supported.
Audio
8 custom processors.
Utilizing devices
- Xbox One X
This list is incomplete; you can help by expanding it.
Die
- TSMC's 16 nm FF+ process
- 7,000,000,000 transistors
- 359 mm² die size
.png)
| has ecc memory support | false + |
| l1$ size | 512 KiB (524,288 B, 0.5 MiB) + |
| l1d$ description | 8-way set associative + |
| l1d$ size | 256 KiB (262,144 B, 0.25 MiB) + |
| l1i$ description | 2-way set associative + |
| l1i$ size | 256 KiB (262,144 B, 0.25 MiB) + |
| l2$ description | 16-way set associative + |
| l2$ size | 4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) + |
| max memory bandwidth | 304 GiB/s (311,296 MiB/s, 326.418 GB/s, 326,417.514 MB/s, 0.297 TiB/s, 0.326 TB/s) + |
| max memory channels | 12 + |
| supported memory type | GDDR5-6800 + |
| used by | Xbox One X + |