Intel® Arria® 10 Device Overview

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ID 683332
Date 2/14/2022
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Variable-Precision DSP Block

The Intel® Arria® 10 variable precision DSP blocks support fixed-point arithmetic and floating-point arithmetic.

Features for fixed-point arithmetic:

  • High-performance, power-optimized, and fully registered multiplication operations
  • 18-bit and 27-bit word lengths
  • Two 18 x 19 multipliers or one 27 x 27 multiplier per DSP block
  • Built-in addition, subtraction, and 64-bit double accumulation register to combine multiplication results
  • Cascading 19-bit or 27-bit when pre-adder is disabled and cascading 18-bit when pre-adder is used to form the tap-delay line for filtering applications
  • Cascading 64-bit output bus to propagate output results from one block to the next block without external logic support
  • Hard pre-adder supported in 19-bit and 27-bit modes for symmetric filters
  • Internal coefficient register bank in both 18-bit and 27-bit modes for filter implementation
  • 18-bit and 27-bit systolic finite impulse response (FIR) filters with distributed output adder
  • Biased rounding support

Features for floating-point arithmetic:

  • A completely hardened architecture that supports multiplication, addition, subtraction, multiply-add, and multiply-subtract
  • Multiplication with accumulation capability and a dynamic accumulator reset control
  • Multiplication with cascade summation capability
  • Multiplication with cascade subtraction capability
  • Complex multiplication
  • Direct vector dot product
  • Systolic FIR filter
Table 15.  Variable-Precision DSP Block Configurations for Intel® Arria® 10 Devices
Usage Example Multiplier Size (Bit) DSP Block Resources
Medium precision fixed point Two 18 x 19 1
High precision fixed or Single precision floating point One 27 x 27 1
Fixed point FFTs One 19 x 36 with external adder 1
Very high precision fixed point One 36 x 36 with external adder 2
Double precision floating point One 54 x 54 with external adder 4
Table 16.  Resources for Fixed-Point Arithmetic in Intel® Arria® 10 DevicesThe table lists the variable-precision DSP resources by bit precision for each Intel® Arria® 10 device.
Variant Product Line

Variable-precision

DSP Block

Independent Input and Output

Multiplications Operator

18 x 19

Multiplier Adder Sum Mode

18 x 18

Multiplier Adder Summed with 36 bit Input

18 x 19

Multiplier

27 x 27

Multiplier

A Intel® Arria® 10 GX GX 160 156 312 156 156 156
GX 220 192 384 192 192 192
GX 270 830 1,660 830 830 830
GX 320 984 1,968 984 984 984
GX 480 1,368 2,736 1,368 1,368 1,368
GX 570 1,523 3,046 1,523 1,523 1,523
GX 660 1,687 3,374 1,687 1,687 1,687
GX 900 1,518 3,036 1,518 1,518 1,518
GX 1150 1,518 3,036 1,518 1,518 1,518
Intel® Arria® 10 GT GT 900 1,518 3,036 1,518 1,518 1,518
GT 1150 1,518 3,036 1,518 1,518 1,518
Intel® Arria® 10 SX SX 160 156 312 156 156 156
SX 220 192 384 192 192 192
SX 270 830 1,660 830 830 830
SX 320 984 1,968 984 984 984
SX 480 1,368 2,736 1,368 1,368 1,368
SX 570 1,523 3,046 1,523 1,523 1,523
SX 660 1,687 3,374 1,687 1,687 1,687
Table 17.  Resources for Floating-Point Arithmetic in Intel® Arria® 10 DevicesThe table lists the variable-precision DSP resources by bit precision for each Intel® Arria® 10 device.
Variant Product Line

Variable-precision

DSP Block

Single Precision Floating-Point Multiplication Mode Single-Precision Floating-Point Adder Mode Single-Precision Floating-Point Multiply Accumulate Mode

Peak

Giga Floating-Point Operations per Second (GFLOPs)

Intel® Arria® 10 GX GX 160 156 156 156 156 140
GX 220 192 192 192 192 173
GX 270 830 830 830 830 747
GX 320 984 984 984 984 886
GX 480 1,369 1,368 1,368 1,368 1,231
GX 570 1,523 1,523 1,523 1,523 1,371
GX 660 1,687 1,687 1,687 1,687 1,518
GX 900 1,518 1,518 1,518 1,518 1,366
GX 1150 1,518 1,518 1,518 1,518 1,366
Intel® Arria® 10 GT GT 900 1,518 1,518 1,518 1,518 1,366
GT 1150 1,518 1,518 1,518 1,518 1,366
Intel® Arria® 10 SX SX 160 156 156 156 156 140
SX 220 192 192 192 192 173
SX 270 830 830 830 830 747
SX 320 984 984 984 984 886
SX 480 1,369 1,368 1,368 1,368 1,231
SX 570 1,523 1,523 1,523 1,523 1,371
SX 660 1,687 1,687 1,687 1,687 1,518

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