M3 Ultra (28C60G) vs Intel Core i5-6685R

M3 Ultra (28C60G)
Intel Core i5-6685R $288
28 Cores
28 Threads
4.05GHz Clock
4 Cores
4 Threads
3.2GHz Clock
Socket
Unknown
Socket
BGA 1440
iGPU
60-Core M3 Ultra
21.47 TFLOPS FP32
iGPU
Iris Pro 580 1150MHz
1.33 TFLOPS FP32

GB6 Single-Core

  • 2.6x faster vs Core i5-6685R
  • 61% slower vs M3 Ultra (28C60G)
M3 Ultra (28C60G) - GB6S 3,220
x2.6
Core i5-6685R - GB6S 1,240
x1

GB6 Multi-Core

  • 8.28x faster vs Core i5-6685R
  • 88% slower vs M3 Ultra (28C60G)
M3 Ultra (28C60G) - GB6M 27,750
x8.28
Core i5-6685R - GB6M 3,350
x1
  • 24.02x faster vs Core i5-6685R
  • 96% slower vs M3 Ultra (28C60G)
M3 Ultra (28C60G) - 819.2GB/s
x24.02
Core i5-6685R - 34.1GB/s
x1
  • 177% higher vs Core i5-6685R
  • 64% lower vs M3 Ultra (28C60G)
M3 Ultra (28C60G) - 180W
x2.77
Core i5-6685R - 65W
x1
  • 16.14x faster vs Core i5-6685R
  • 94% slower vs M3 Ultra (28C60G)
M3 Ultra (28C60G) - 21.47 TFLOPS FP32
x16.14
Core i5-6685R - 1.33 TFLOPS FP32
x1
GB6S 3,220
79%
GB6S 1,240
31%
GB6M 27,750
104%
GB6M 3,350
13%
Manufacturer
Apple
Manufacturer
Intel
Architecture
Apple Silicon 13
Architecture
Skylake
Family
M Series
Family
Core 6th Gen
Instruction Set (ISA)
AArch64
Instruction Set (ISA)
x86-64
Codename
Palma
M3 Ultra
P-Core
AS13P
E-Core
AS13E
Codename
Skylake-S
Skylake-4C-GT4
-
-
-
-
Market Segment
Desktop
Market Segment
Desktop
Release Date
3/5/2025
Release Date
5/3/2016
Foundry
TSMC
-
Foundry
Intel
Intel (eDRAM Die)
Node
N3B
-
Node
14nm
22nm (eDRAM Die)
Die Size
1005 mm²
-
Die Size
184 mm²
77 mm² (eDRAM Die)
Transistor Count
184 Billion
Transistor Count
3.2 Billion
Unknown
BGA 1440
28 Cores
20 P-Cores
8 E-Cores
4 Cores
-
-
28 Threads
20 P-Threads
8 E-Threads
4 Threads
-
-
P-Core
4.05GHz
-
-
3.2GHz
3.8GHz Boost
E-Core
2.75GHz
-
-
Overclocking
Locked
Overclocking
Locked
Integrated Chipset
-
Type
DMI
-
-
Transfer Rate
8GT/s
-
-
Lanes
4
-
-
Bandwidth
4GB/s
-
-
Bi-directional
8GB/s
L1 Instruction
192KB/P-Core
6-way set associative
128KB/E-Core
4-way set associative
L1 Instruction
32KB/Core
8-way set associative
-
-
L1 Data
128KB/P-Core
4-way set associative
64KB/E-Core
2-way set associative
L1 Data
32KB/Core
8-way set associative
-
-
L2
-
-
64MB Shared
16-way set associative
4MB Shared (E-Core)
16-way set associative
L2
256KB/Core
4-way set associative
-
-
-
-
-
-
-
L3
6MB Shared
12-way set associative
-
-
96MB SLC Cache
L4
128MB Shared
-
Channels
8
Channels
2
Max Memory
128GB
Max Memory
64GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
128Bit
Bus Width
1024Bit
Bus Width/Channel
64Bit
Bus Width
128Bit
Clock
3200MHz
Transfer Rate
6400MT/s
Clock
1067MHz
Transfer Rate
2133MT/s
Bandwidth/Channel
102.4GB/s
Bandwidth
819.2GB/s
Bandwidth/Channel
17.1GB/s
Bandwidth
34.1GB/s
TDP
180W
TDP
65W
Temp
100°C Max
-
Temp
-
71°C TCase
No PCIe
PCIe 3.0 x16 Lanes
60-Core M3 Ultra
7680 Shaders
1398MHz
21.47 TFLOPS FP32
Iris Pro 580 1150MHz
576 Shaders
1150MHz
1.33 TFLOPS FP32
No NPU
32 Cores
-
36 TOPS FP16
-
No Cellular
No Cellular
Change Comparison