Radeon HD 7900 (Tahiti) Details

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Device Details
  • GPU model : Radeon HD 7900 (Tahiti)
  • Vendor : AMD
  • Device Type : GPU
  • Clock frequency : 900 MHz
  • Number of processing elements :
  • Number of compute units : 28
  • Maximum local memory : 32 kB
  • Warp or wavefront size : 64

More GPU details on Techpowerup.com .


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Computational benchmarks
User Benchmark Performance (GFlops) λ (c) Λ (c) Ridge Point (warps)
janlemeire SP/1 1420 1.14 3.47 24
janlemeire SP/2 1460 1.1 3.08 24
janlemeire SP/4 1500 1.07 2.8 20
janlemeire SP/8 769 2.1 5.04 16
janlemeire MADD/1 2810 0.57 2.49 32
janlemeire MADD/2 2870 0.56 2.36 32
janlemeire MADD/4 2890 0.56 2.23 28
janlemeire INT/1 386 4.18 7.47 8
janlemeire INT/2 391 4.13 7.19 8
janlemeire INT/4 393 4.1 6.99 8
janlemeire INT/8 520 3.1 9.11 20
janlemeire IMADD/1 625 2.58 4.92 12
janlemeire IMADD/2 630 2.56 4.96 12
janlemeire IMADD/4 631 2.56 5.44 12
janlemeire DIV/1 751 2.15 6.18 20
janlemeire DIV/2 767 2.1 5.44 16
janlemeire DIV/4 775 2.08 5.19 16
janlemeire DIV/8 779 2.07 5.05 16
janlemeire DP/1 67.6 23.9 45.7 12
janlemeire DP/2 67.6 23.8 44.7 12
janlemeire DP/4 66.1 24.4 50.4 12
janlemeire SF/1 41.3 41.4 351 64
janlemeire SF/2 82.8 20.6 161 32
janlemeire SF/4 102 16.1 118 32
janlemeire SFSOFT/1 44.8 36 193 40
janlemeire SFSOFT/2 41.6 38.8 198 36
janlemeire CMP/1 563 2.86 7.84 20
janlemeire CMP/2 752 2.14 7.91 24
janlemeire SPECIAL/KERNEL 7440 0.22 0.29 6
janlemeire SPECIAL/GLOBALID 28.7 56.3 150 12
janlemeire SPECIAL/LOCALID 28.7 56.3 93.8 20
janlemeire SP/1 1370 1.18 9.08 64
janlemeire SP/2 1430 1.13 7.91 32
janlemeire MADD/1 2690 0.6 7.18 64
janlemeire MADD/2 2740 0.59 6.67 64
janlemeire INT/1 385 4.19 18.5 16
janlemeire INT/2 388 4.16 18.2 16
janlemeire IMADD/1 622 2.59 12.3 16
janlemeire IMADD/2 625 2.58 11.9 16
janlemeire DIV/1 740 2.18 17 32
janlemeire DIV/2 753 2.14 14.6 32
janlemeire DP/1 29 58.2 317 32
janlemeire DP/2 67.4 23.9 112 16
janlemeire SPECIAL/KERNEL 7340 0.22 0.88 8
janlemeire SPECIAL/GLOBALID 28.7 56.3 375 16
janlemeire SPECIAL/LOCALID 28.7 56.3 300 16
Memory access benchmarks
User Benchmark Bandwidth (GB/s) Memory Size (kB) λ (c) Λ (c) Ridge Point (warps)
janlemeire Global/Float/MainMemory 221 0 29.3 210 24
janlemeire Global/Float/CacheLevel1 1300 0.125 5.03 85 20
janlemeire Global/Float/CacheLevel2 0 0 0 0 0
janlemeire Local/Float/MainMemory 1150 0 0 50.1 12
janlemeire Local/Float/CacheLevel1 0 0 0 0 0
janlemeire Private/Float/MainMemory 37.6 0 532 113 12
janlemeire Private/Float/CacheLevel1 0 0 0 0 0
janlemeire Constant/Float/MainMemory 1340 0 5.09 84.9 20
janlemeire Constant/Float/CacheLevel1 0 0 0 0 0
janlemeire Global/Float/MainMemory 229 0 28.6 422 20
janlemeire Global/Float/MainMemory 227 0 28.5 419 32
janlemeire Global/Float/CacheLevel1 980 0.25 8.54 271 32
janlemeire Global/Float/CacheLevel2 0 0 0 0 0
janlemeire Local/Float/MainMemory 2430 0 0 0 32
janlemeire Local/Float/CacheLevel1 2070 0 3.36 129 0
janlemeire Private/Float/CacheLevel1 32 0 0 0 0
janlemeire Constant/Float/MainMemory 1280 0 0 0 32
janlemeire Constant/Float/CacheLevel1 1200 0 5.4 181 0