iMac (27-inch Retina Late 2015) vs iMac (27-inch Retina Mid 2017)

Geekbench Scores

iMac (27-inch Retina Late 2015) iMac (27-inch Retina Mid 2017)
Single-Core Score 4811 5741
Multi-Core Score 14303 19795
Geekbench 4.4.2 Geekbench 4.1.2

System Information

iMac (27-inch Retina Late 2015) iMac (27-inch Retina Mid 2017)
Operating System macOS 10.15.4 (Build 19E287) macOS 10.13 (Build 17A405)
Model iMac (27-inch Retina Late 2015) iMac (27-inch Retina Mid 2017)
Processor Intel Core i5-6600 @ 3.30 GHz
1 Processor, 4 Cores 		Intel Core i7-7700K @ 4.20 GHz
1 Processor, 4 Cores, 8 Threads
Processor ID GenuineIntel Family 6 Model 94 Stepping 3 GenuineIntel Family 6 Model 158 Stepping 9
L1 Instruction Cache 32 KB x 2 32 KB x 4
L1 Data Cache 32 KB x 2 32 KB x 4
L2 Cache 256 KB x 2 256 KB x 4
L3 Cache 6144 KB 8192 KB
Motherboard Apple Inc. Mac-B809C3757DA9BB8D iMac17,1 Apple Inc. Mac-BE088AF8C5EB4FA2 iMac18,3
BIOS Apple Inc. 176.0.0.0.0 Apple Inc. IM183.88Z.0151.B00.1708080034
Memory 24.00 GB 1867 MHz DDR3 32.00 GB 2400 MHz DDR4

Single-Core Performance

iMac (27-inch Retina Late 2015) iMac (27-inch Retina Mid 2017)
Single-Core Score 4811 5741
AES 3115
2.35 GB/sec 		3768
2.84 GB/sec
LZMA 4088
6.38 MB/sec 		5211
8.14 MB/sec
JPEG 4933
39.7 Mpixels/sec 		5799
46.7 Mpixels/sec
Canny 4189
58.1 Mpixels/sec 		5398
74.9 Mpixels/sec
Lua 4697
4.83 MB/sec 		5697
5.86 MB/sec
Dijkstra 5313
3.60 MTE/sec 		6556
4.44 MTE/sec
SQLite 4126
114.4 Krows/sec 		4987
138.3 Krows/sec
HTML5 Parse 4048
18.4 MB/sec 		4831
21.9 MB/sec
HTML5 DOM 5312
4.81 MElements/sec 		6486
5.88 MElements/sec
Histogram Equalization 4280
133.8 Mpixels/sec 		5141
160.7 Mpixels/sec
PDF Rendering 5871
156.0 Mpixels/sec 		5745
152.6 Mpixels/sec
LLVM 7723
531.0 functions/sec 		9510
653.9 functions/sec
Camera 5044
14.0 images/sec 		6052
16.8 images/sec
SGEMM 5094
107.7 Gflops 		6147
129.9 Gflops
SFFT 5257
13.1 Gflops 		6338
15.8 Gflops
N-Body Physics 4591
3.43 Mpairs/sec 		5496
4.11 Mpairs/sec
Ray Tracing 4250
620.6 Kpixels/sec 		5095
744.1 Kpixels/sec
Rigid Body Physics 5309
15542.5 FPS 		6351
18594.0 FPS
HDR 5244
19.0 Mpixels/sec 		6834
24.8 Mpixels/sec
Gaussian Blur 5154
90.3 Mpixels/sec 		6005
105.2 Mpixels/sec
Speech Recognition 5173
44.3 Words/sec 		6465
55.3 Words/sec
Face Detection 4744
1.39 Msubwindows/sec 		5486
1.60 Msubwindows/sec
Memory Copy 4728
13.1 GB/sec 		5340
14.8 GB/sec
Memory Latency 5887
73.5 ns 		6801
63.7 ns
Memory Bandwidth 4083
21.8 GB/sec 		4819
25.7 GB/sec

Multi-Core Performance

iMac (27-inch Retina Late 2015) iMac (27-inch Retina Mid 2017)
Multi-Core Score 14303 19795
AES 13211
9.95 GB/sec 		15618
11.8 GB/sec
LZMA 13848
21.6 MB/sec 		23377
36.5 MB/sec
JPEG 18155
146.1 Mpixels/sec 		27018
217.4 Mpixels/sec
Canny 14755
204.6 Mpixels/sec 		21904
303.7 Mpixels/sec
Lua 16946
17.4 MB/sec 		22154
22.8 MB/sec
Dijkstra 14948
10.1 MTE/sec 		21237
14.4 MTE/sec
SQLite 15194
421.2 Krows/sec 		18201
504.6 Krows/sec
HTML5 Parse 14567
66.1 MB/sec 		20225
91.8 MB/sec
HTML5 DOM 18583
16.8 MElements/sec 		25128
22.8 MElements/sec
Histogram Equalization 15930
497.8 Mpixels/sec 		21595
674.8 Mpixels/sec
PDF Rendering 18747
498.1 Mpixels/sec 		22818
606.2 Mpixels/sec
LLVM 27713
1.91 Kfunctions/sec 		44535
3.06 Kfunctions/sec
Camera 18696
51.8 images/sec 		27777
77.0 images/sec
SGEMM 13136
277.7 Gflops 		18019
380.9 Gflops
SFFT 19944
49.7 Gflops 		25983
64.8 Gflops
N-Body Physics 17214
12.9 Mpairs/sec 		24207
18.1 Mpairs/sec
Ray Tracing 14505
2.12 Mpixels/sec 		23474
3.43 Mpixels/sec
Rigid Body Physics 19721
57731.3 FPS 		32747
95864.2 FPS
HDR 17661
64.0 Mpixels/sec 		26703
96.8 Mpixels/sec
Gaussian Blur 18757
328.6 Mpixels/sec 		23951
419.6 Mpixels/sec
Speech Recognition 12003
102.7 Words/sec 		15537
132.9 Words/sec
Face Detection 17877
5.22 Msubwindows/sec 		25499
7.45 Msubwindows/sec
Memory Copy 5362
14.9 GB/sec 		6075
16.8 GB/sec
Memory Latency 5842
74.1 ns 		6646
65.1 ns
Memory Bandwidth 4230
22.6 GB/sec 		4741
25.3 GB/sec

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