iMac (21.5-inch Mid 2011) vs iMac (27-inch Retina Late 2015)

Geekbench Scores

iMac (21.5-inch Mid 2011) iMac (27-inch Retina Late 2015)
Single-Core Score 3376 5926
Multi-Core Score 8539 19220
Geekbench 4.2.3 Tryout Geekbench 4.0.1 Tryout

System Information

iMac (21.5-inch Mid 2011) iMac (27-inch Retina Late 2015)
Operating System macOS 10.15 (Build 19A512f) macOS 10.12.1 (Build 16B2555)
Model iMac (21.5-inch Mid 2011) iMac (27-inch Retina Late 2015)
Processor Intel Core i5-2400S @ 2.50 GHz
1 Processor, 4 Cores 		Intel Core i7-6700K @ 4.01 GHz
1 Processor, 4 Cores, 8 Threads
Processor ID GenuineIntel Family 6 Model 42 Stepping 7 GenuineIntel Family 6 Model 94 Stepping 3
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-942B5BF58194151B Apple Inc. Mac-27ADBB7B4CEE8E61 iMac17,1
BIOS Apple Inc. 87.0.0.0.0 Apple Inc. IM171.88Z.0105.B08.1604111319
Memory 16.00 GB 1333 MHz DDR3 32.00 GB 3200 MHz DDR4

Single-Core Performance

iMac (21.5-inch Mid 2011) iMac (27-inch Retina Late 2015)
Single-Core Score 3376 5926
AES 2669
2.01 GB/sec 		3791
2.86 GB/sec
LZMA 3514
5.49 MB/sec 		5127
8.01 MB/sec
JPEG 3678
29.6 Mpixels/sec 		5881
47.3 Mpixels/sec
Canny 3260
45.2 Mpixels/sec 		5539
76.8 Mpixels/sec
Lua 2359
2.42 MB/sec 		5534
5.69 MB/sec
Dijkstra 4089
2.77 MTE/sec 		6529
4.42 MTE/sec
SQLite 2627
72.8 Krows/sec 		5140
142.5 Krows/sec
HTML5 Parse 2817
12.8 MB/sec 		5024
22.8 MB/sec
HTML5 DOM 4097
3.71 MElements/sec 		5212
4.72 MElements/sec
Histogram Equalization 3037
94.9 Mpixels/sec 		5019
156.8 Mpixels/sec
PDF Rendering 3939
104.6 Mpixels/sec 		5781
153.6 Mpixels/sec
LLVM 5342
367.3 functions/sec 		6507
447.4 functions/sec
Camera 3630
10.1 images/sec 		6073
16.8 images/sec
SGEMM 1787
37.8 Gflops 		6091
128.8 Gflops
SFFT 3536
8.82 Gflops 		6363
15.9 Gflops
N-Body Physics 2595
1.94 Mpairs/sec 		5536
4.13 Mpairs/sec
Ray Tracing 2629
383.9 Kpixels/sec 		5124
748.2 Kpixels/sec
Rigid Body Physics 3966
11611.2 FPS 		6159
18032.1 FPS
HDR 3125
11.3 Mpixels/sec 		6721
24.4 Mpixels/sec
Gaussian Blur 3469
60.8 Mpixels/sec 		5888
103.1 Mpixels/sec
Speech Recognition 3954
33.8 Words/sec 		6425
55.0 Words/sec
Face Detection 3305
965.5 Ksubwindows/sec 		5661
1.65 Msubwindows/sec
Memory Copy 3158
8.75 GB/sec 		7053
19.5 GB/sec
Memory Latency 6395
67.7 ns 		8008
18.5 Moperations/sec
Memory Bandwidth 2816
15.0 GB/sec 		6440
34.4 GB/sec

Multi-Core Performance

iMac (21.5-inch Mid 2011) iMac (27-inch Retina Late 2015)
Multi-Core Score 8539 19220
AES 8312
6.26 GB/sec 		22806
17.2 GB/sec
LZMA 10094
15.8 MB/sec 		23846
37.2 MB/sec
JPEG 11592
93.3 Mpixels/sec 		28210
227.0 Mpixels/sec
Canny 9511
131.9 Mpixels/sec 		24683
342.3 Mpixels/sec
Lua 7412
7.62 MB/sec 		21941
22.5 MB/sec
Dijkstra 10193
6.90 MTE/sec 		27186
18.4 MTE/sec
SQLite 8235
228.3 Krows/sec 		10255
284.3 Krows/sec
HTML5 Parse 8543
38.8 MB/sec 		19698
89.4 MB/sec
HTML5 DOM 11986
10.9 MElements/sec 		15500
14.0 MElements/sec
Histogram Equalization 9310
290.9 Mpixels/sec 		21540
673.0 Mpixels/sec
PDF Rendering 10151
269.7 Mpixels/sec 		24443
649.4 Mpixels/sec
LLVM 16124
1.11 Kfunctions/sec 		13889
955.0 functions/sec
Camera 11390
31.6 images/sec 		26783
74.3 images/sec
SGEMM 5457
115.4 Gflops 		20799
439.7 Gflops
SFFT 11155
27.8 Gflops 		24749
61.7 Gflops
N-Body Physics 8254
6.16 Mpairs/sec 		22741
17.0 Mpairs/sec
Ray Tracing 7725
1.13 Mpixels/sec 		22605
3.30 Mpixels/sec
Rigid Body Physics 12391
36273.9 FPS 		31333
91722.6 FPS
HDR 9359
33.9 Mpixels/sec 		28550
103.5 Mpixels/sec
Gaussian Blur 10811
189.4 Mpixels/sec 		23949
419.5 Mpixels/sec
Speech Recognition 8509
72.8 Words/sec 		18789
160.8 Words/sec
Face Detection 10343
3.02 Msubwindows/sec 		24234
7.08 Msubwindows/sec
Memory Copy 3550
9.84 GB/sec 		8818
24.4 GB/sec
Memory Latency 6146
70.4 ns 		8046
18.6 Moperations/sec
Memory Bandwidth 3102
16.6 GB/sec 		7188
38.4 GB/sec

Compare

Remove Baseline Geekbench 6 now available