The Wi-Fi-only version of the Samsung Galaxy Tab S 10.5 features Exynos Octa 5422 chipset with 1.9GHz quad-core Cortex-A15 CPU and 1.3 GHz quad-core Cortex-A7 CPU. The GPU is Mali-T628 GPU, while 3GB of RAM make sure everything runs smoothly on the device.
GeekBench 3 and AnTuTu 4 are benchmarks which put to the test the hardware combo inside the tablet. GeekBench 3 is more CPU-intensive, whereas AnTuTu 4 is a compound benchmark - testing CPU, GPU, memory performance among others.
GeekBench 3
Higher is better
Oppo Find 7a 3093
Galaxy S5 (Snapdragon 801) 3011
Galaxy S5 Active 3010
Galaxy Tab S 8.4 (Exynos) 2881
Sony Xperia Z2 2856
LG G3 2687
LG G Pro 2 2585
LG Nexus 5 2453
HTC One (M8) 2367
LG G2 2243
Motorola Moto X 2123
Galaxy Tab S 10.5 (Exynos) 1777
HTC One mini 2 1526
Sony Xperia T2 Ultra 1359
AnTuTu 4
Higher is better
HTC One (M8) 37009
Galaxy S5 Active 36162
Galaxy S5 (Snapdragon 801) 36018
LG G2 35444
Galaxy Tab S 8.4 (Exynos) 35359
Galaxy Tab S 10.5 (Exynos) 33961
Oppo Find 7a 33344
Sony Xperia Z2 33182
LG G3 30482
LG G Pro 2 29603
LG Nexus 5 25097
Sony Xperia T2 Ultra 19896
Motorola Moto X 19031
HTC One mini 2 17883
Basemark OS II is another all-round benchmark. It gives an overall score along with single-core, multi-core, and math performance. The tablet didn't blow us away on this occasion.
Basemark OS II
Higher is better
LG G3 1151
LG G Pro 2 1140
LG G3 (anti-cheat) 1132
HTC One (M8) 1126
Galaxy S5 Active 1107
Galaxy S5 (Snapdragon 801) 1082
Sony Xperia Z2 1080
Oppo Find 7a 1057
Galaxy Tab S 10.5 (Exynos) anti-cheat 829
Galaxy Tab S 8.4 (Exynos) anti-cheat 768
HTC One mini 2 517
Sony Xperia T2 Ultra 434
Next up we have GFXBench's 2.7 T-Rex and 3.0 Manhattan. The Samsung Galaxy Tab S 10.5 performed in an underwhelming fashion here - its GPU simply couldn't manage all the pixels the way a flagship device should during the on-screen tests. The off-screen results were slightly better, yet still far from the top of the charts.
GFX 2.7 T-Rex (1080p offscreen)
Higher is better
HTC One (M8) 28.4
Oppo Find 7a 28.4
Galaxy S5 (Snapdragon 801) 27.8
LG G3 27.6
Samsung Galaxy S5 Active 27.5
Sony Xperia Z2 27.2
LG Nexus 5 23
LG G Pro 2 22.9
Galaxy Tab S 8.4 (Exynos) 22.8
Galaxy Tab S 10.5 (Exynos) 22.5
LG G2 22
Motorola Moto X 16
Sony Xperia T2 Ultra 5.8
HTC One mini 2 5.8
GFX 2.7 T-Rex (onscreen)
Higher is better
HTC One (M8) 30.1
Oppo Find 7a 28.8
Sony Xperia Z2 28.7
Galaxy S5 (Snapdragon 801) 28.1
Galaxy S5 Active 27.7
LG G Pro 2 24.1
LG Nexus 5 24
LG G2 23.1
LG G3 20.6
Galaxy Tab S 10.5 (Exynos) 14
Galaxy Tab S 8.4 (Exynos) 14
HTC One mini 2 11
Sony Xperia T2 Ultra 10.9
GFX 3.0 Manhattan (1080p offscreen)
Higher is better
LG G3 11.9
Galaxy S5 (Snapdragon 801) 11.8
Galaxy S5 Active 11.7
Sony Xperia Z2 11.7
Oppo Find 7a 11.4
HTC One (M8) 11.1
LG G Pro 2 8.7
Galaxy Tab S 8.4 (Exynos) 5.6
Galaxy Tab S 10.5 (Exynos) 5.6
HTC One mini 2 1.7
GFX 3.0 Manhattan (onscreen)
Higher is better
Sony Xperia Z2 12.2
HTC One (M8) 11.9
Galaxy S5 (Snapdragon 801) 11.7
Galaxy S5 Active 11.7
Oppo Find 7a 11.4
LG G Pro 2 9.2
LG G3 7.4
Sony Xperia T2 Ultra 4.1
HTC One mini 2 3.8
Galaxy Tab S 8.4 (Exynos) 2.9
Galaxy Tab S 10.5 (Exynos) 2.9
BrowserMark 2.1 looks at HTML 5 performance, while Mozilla's Kraken 1.1 is JavaScript-centric. The Samsung Galaxy Tab S 10.5 did well on Kraken, but didn't impress on BrowserMark.
BrowserMark 2.1
Higher is better
Galaxy Tab S 8.4 (Exynos) 1681
Galaxy Tab S 10.5 (Exynos) 1515
Galaxy S5 (Snapdragon 801) 1398
LG G Pro 2 1346
Oppo Find 7a 1327
Galaxy S5 Active 1319
LG Nexus 5 1286
LG G3 1254
Sony Xperia Z2 1224
HTC One (M8) 1069
HTC One mini 2 945
Kraken 1.1
Lower is better
Galaxy Tab S 10.5 (Exynos) 4777
Galaxy Tab S 8.4 (Exynos) 4927
Galaxy S5 (Snapdragon 801) 6043
Galaxy S5 Active 6341
LG G Pro 2 6578
Oppo Find 7a 6660
Sony Xperia Z2 7041
LG Nexus 5 7148
LG G3 7610
HTC One (M8) 10296
HTC One mini 2 15684
Overall, the benchmark performance of the Samsung Galaxy Tab S 10.5 turned out to be a mixed bag. GPU performance in particular in nowhere near what's expected from a flagship slate - it had a hard time handling all the pixels of the Super AMOLED display.
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