miner battle: z-enemy 1.16 (x64) vs. t-rex 0.5.7 [x16r / ravencoin]

Head to Head test of Z-enemy 1.16 Vs t-rex 0.5.7 (X16R Ravencoin)

I've been wanting to compare performance between z-enemy and t-rex on the X16R algorithm for some time. This will be a test done in the vein of JackIt's tests in the past, where I ask which miner puts more coins in my wallet?

Setup: For this first test, I'm using a 4 GPU rig with Zotac 1080 Ti Minis running Windows 10 x64. I started an instance of each miner at the same time (using 2 GPUs each) running on the same pool (Ravenminer) and the same machine. The miners will run for ~12 hours (started around 8AM PST 8/15), I'll stop them simultaneously, and we'll see how many coins are in the 2 wallets. I will likely run this test 2-3 times to ensure that the results are consistent.

Overclock: 100% TDP, +110 core clock, stock memory

Drivers: 398.82

Miners: Z-enemy 1.16 x64, CUDA 9.2, intensity 22 (thread here) vs. T-rex 0.5.7 , CUDA 9.2 , intensity 22 (thread here) . Both miners have a 1% dev fee. Running auto (server set) difficulty on both miners, it appears to stabilize in the 60-75 range. For the first test Z-enemy will use GPU0&1 and t-rex will use GPU2&3. For the second round, I'll switch which GPUs each software uses to control for variations in hardware & PCIe slot.

Results:

ROUND #1: 650 minutes

z-enemy 1.16 : 38.63 RVN: pool link
t-rex 0.5.7 : 42.50 RVN (+10.0%) : pool link ***** WINNER ******* (GPU2&3)

ROUND #2: 750 minutes

z-enemy 1.16 : 109.63 RVN (+7.3%): pool link ***** WINNER ******* (GPU2&3)
t-rex 0.5.7 : 102.16RVN : pool link

Round #3: 250 minutes
z-enemy 1.16 : 39.79 RVN (+13.7%) : pool link ***** WINNER ******* (GPU2&3)
t-rex 0.5.7 : 35.98 RVN : pool link

TEST FAILED!!!
GPU2&3 are winning every test (rig unbalanced). I'm going to redo the test on another rig in hopes of conclusive results.

new test here: https://bitcointalk.org/index.php?topic=4907176