xpmclminer benchmark R9 270X no OC

6:02:43 xpmclminer -b
OpenCL platform available: Advanced Micro Devices, Inc.
[0] Pitcairn; 20 compute units
[1] Pitcairn; 20 compute units
[2] Pitcairn; 20 compute units
 * GPU 1 benchmark start:
Multiply 256 bits CPU time: 4.344, GPU time: 0.061 (71.152 times faster)
Multiply 384 bits CPU time: 8.310, GPU time: 0.090 (92.290 times faster)
Multiply 448 bits CPU time: 10.900, GPU time: 0.146 (74.826 times faster)
Modulo (512 % 384) CPU time: 0.036, GPU time: 0.001 (25.504 times faster)
Modulo (640 % 512) CPU time: 0.038, GPU time: 0.001 (60.223 times faster)
Fermat test 256 bits CPU time: 1.264, GPU time: 0.030 (42.270 times faster)
Fermat test 384 bits CPU time: 3.640, GPU time: 0.090 (40.468 times faster)
Fermat test 448 bits CPU time: 5.452, GPU time: 0.148 (36.860 times faster)
   * sieve with checking results
(262144, real 1441792) GPU(time 66.289ms speed 21750.094) L1Ext/Fastest CPU(time 31.810ms speed 45325.118) 0.480 times faster
(524288, real 2883584) GPU(time 56.923ms speed 50657.625) L1Ext/Fastest CPU(time 55.890ms speed 51593.917) 0.982 times faster
(786432, real 4325376) GPU(time 49.927ms speed 86634.006) L1Ext/Fastest CPU(time 77.476ms speed 55828.592) 1.552 times faster
(1048576, real 5767168) GPU(time 87.535ms speed 65884.138) L1Ext/Fastest CPU(time 106.013ms speed 54400.574) 1.211 times faster
(1310720, real 7208960) GPU(time 101.203ms speed 71232.671) L1Ext/Fastest CPU(time 128.091ms speed 56279.988) 1.266 times faster
(1572864, real 8650752) GPU(time 120.358ms speed 71875.172) L1Ext/Fastest CPU(time 153.942ms speed 56194.879) 1.279 times faster
(1835008, real 10092544) GPU(time 139.948ms speed 72116.386) L1Ext/Fastest CPU(time 177.387ms speed 56895.624) 1.268 times faster
(2097152, real 11534336) GPU(time 149.647ms speed 77076.961) L1Ext/Fastest CPU(time 201.510ms speed 57239.522) 1.347 times faster
   * sieve performance test
(262144, real 1441792) GPU(time 70.864ms speed 20345.902) L1Ext/Fastest CPU(time 1115.103ms speed 1292.968) 15.736 times faster
(524288, real 2883584) GPU(time 94.668ms speed 30459.965) L1Ext/Fastest CPU(time 2038.974ms speed 1414.233) 21.538 times faster
(786432, real 4325376) GPU(time 139.124ms speed 31090.078) L1Ext/Fastest CPU(time 2985.206ms speed 1448.937) 21.457 times faster
(1048576, real 5767168) GPU(time 181.891ms speed 31706.725) L1Ext/Fastest CPU(time 3933.218ms speed 1466.272) 21.624 times faster
(1310720, real 7208960) GPU(time 221.803ms speed 32501.634) L1Ext/Fastest CPU(time 4883.009ms speed 1476.336) 22.015 times faster
(1572864, real 8650752) GPU(time 260.427ms speed 33217.570) L1Ext/Fastest CPU(time 5831.397ms speed 1483.478) 22.392 times faster
(1835008, real 10092544) GPU(time 294.791ms speed 34236.269) L1Ext/Fastest CPU(time 6784.969ms speed 1487.486) 23.016 times faster
(2097152, real 11534336) GPU(time 330.314ms speed 34919.307) L1Ext/Fastest CPU(time 7725.367ms speed 1493.047) 23.388 times faster
   * mine with checking results
[group=0] 0 results
  * [0] round time: 186.530 milliseconds, speed: 54.107 M
[group=0] 76 results
  * [1] round time: 178.685 milliseconds, speed: 56.482 M
[group=0] 93 results
  * [2] round time: 178.543 milliseconds, speed: 56.527 M
[group=0] 176 results
  * [3] round time: 178.892 milliseconds, speed: 56.417 M
[group=0] 65 results
  * [4] round time: 178.795 milliseconds, speed: 56.448 M
[group=0] 91 results
  * [5] round time: 178.561 milliseconds, speed: 56.522 M
[group=0] 124 results
  * [6] round time: 178.364 milliseconds, speed: 56.584 M
[group=0] 94 results
  * [7] round time: 178.385 milliseconds, speed: 56.577 M
[group=0] 175 results
  * [8] round time: 186.340 milliseconds, speed: 54.162 M
[group=0] 31 results
  * [9] round time: 163.294 milliseconds, speed: 61.806 M
[group=0] 76 results
  * [10] round time: 187.034 milliseconds, speed: 53.961 M
[group=0] 121 results
  * [11] round time: 178.667 milliseconds, speed: 56.488 M
[group=0] 148 results
  * [12] round time: 178.392 milliseconds, speed: 56.575 M
[group=0] 79 results
  * [13] round time: 178.540 milliseconds, speed: 56.528 M
[group=0] 84 results
  * [14] round time: 204.909 milliseconds, speed: 49.254 M
[group=0] 148 results
  * [15] round time: 178.242 milliseconds, speed: 56.623 M
[group=0] 56 results
  * [16] round time: 171.518 milliseconds, speed: 58.842 M
[group=0] 86 results
  * [17] round time: 178.841 milliseconds, speed: 56.433 M
[group=0] 129 results
  * [18] round time: 179.233 milliseconds, speed: 56.310 M
[group=0] 88 results
  * [19] round time: 178.847 milliseconds, speed: 56.431 M
[group=0] 93 results
  * [20] round time: 178.654 milliseconds, speed: 56.492 M
[group=0] 128 results
  * [21] round time: 186.591 milliseconds, speed: 54.089 M
[group=0] 76 results
  * [22] round time: 171.506 milliseconds, speed: 58.847 M
[group=0] 103 results
  * [23] round time: 200.257 milliseconds, speed: 50.398 M
[group=0] 84 results
  * [24] round time: 178.998 milliseconds, speed: 56.384 M
[group=0] 133 results
  * [25] round time: 179.584 milliseconds, speed: 56.200 M
[group=0] 94 results
  * [26] round time: 179.167 milliseconds, speed: 56.330 M
[group=0] 115 results
  * [27] round time: 178.730 milliseconds, speed: 56.468 M
[group=0] 112 results
  * [28] round time: 186.002 milliseconds, speed: 54.260 M
[group=0] 163 results
  * [29] round time: 178.423 milliseconds, speed: 56.565 M
[group=0] 77 results
  * [30] round time: 171.410 milliseconds, speed: 58.880 M
[group=0] 81 results
  * [31] round time: 200.833 milliseconds, speed: 50.253 M
   * mine performance test
  * [0] round time: 529.514 milliseconds, speed: 1524.801 M
  * [1] round time: 540.042 milliseconds, speed: 1495.075 M
  * [2] round time: 518.763 milliseconds, speed: 1556.402 M
  * [3] round time: 541.537 milliseconds, speed: 1490.948 M
  * [4] round time: 537.383 milliseconds, speed: 1502.473 M
  * [5] round time: 533.738 milliseconds, speed: 1512.734 M
  * [6] round time: 539.836 milliseconds, speed: 1495.646 M
  * [7] round time: 547.676 milliseconds, speed: 1474.236 M
  * [8] round time: 551.498 milliseconds, speed: 1464.019 M
  * [9] round time: 549.600 milliseconds, speed: 1469.075 M
  * [10] round time: 532.909 milliseconds, speed: 1515.087 M
  * [11] round time: 547.234 milliseconds, speed: 1475.426 M
  * [12] round time: 547.917 milliseconds, speed: 1473.587 M
  * [13] round time: 541.114 milliseconds, speed: 1492.114 M
  * [14] round time: 562.436 milliseconds, speed: 1435.547 M
  * [15] round time: 577.241 milliseconds, speed: 1398.729 M
  * [16] round time: 574.809 milliseconds, speed: 1404.647 M
  * [17] round time: 564.218 milliseconds, speed: 1431.013 M
  * [18] round time: 562.395 milliseconds, speed: 1435.652 M
  * [19] round time: 563.612 milliseconds, speed: 1432.552 M
  * [20] round time: 569.881 milliseconds, speed: 1416.793 M
  * [21] round time: 577.327 milliseconds, speed: 1398.520 M
  * [22] round time: 571.635 milliseconds, speed: 1412.446 M
  * [23] round time: 566.071 milliseconds, speed: 1426.329 M
  * [24] round time: 581.112 milliseconds, speed: 1389.411 M
  * [25] round time: 568.638 milliseconds, speed: 1419.890 M
  * [26] round time: 577.332 milliseconds, speed: 1398.508 M
  * [27] round time: 574.042 milliseconds, speed: 1406.523 M
  * [28] round time: 578.173 milliseconds, speed: 1396.474 M
  * [29] round time: 569.615 milliseconds, speed: 1417.455 M
  * [30] round time: 581.838 milliseconds, speed: 1387.678 M
  * [31] round time: 566.131 milliseconds, speed: 1426.178 M