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This google docs spreadsheetGoogle docs spreadsheet has a nice list of GPU/CPU hash rate reports to help you make up your mind!

google docs gpu/cpu spreadsheet Here are top-10 CPUs:

CPU ~H/s    Threads TDP, W  Miner app / version Settings / command line
AMD Opteron 32x6276 15000.00    400+    115 wolf    -a cryptonight -t25 (x16)
Intel Xeon E7-8880v3    1805.00 27  150 wolf's latest cpuminer  
AMD Opteron 6272    815.00  30  2x115   wolf's cpuminer -a cryptonight -t 30
Intel Xeon 2xE5-2680v2 (Amazon c38xlarge)   610.00      2x130   cpuminer-multi dev tree (1.0.3 with minor optimisations)    -a cryptonight
AMD Opteron 4x8389  430.00  16  4x115   LucasJones cpuminer / 1.0.3 -a cryptonight -t 16
AMD FX-8320 420 4/8 145 xmr-stak-cpu 1.1.1  -t 4, -lpm:false
Xeon L5640  390.00  12  2x91    wolf's cpuminer -a cryptonight -t 12
AMD FX-8350 370.00  7/8 200 wolf's latest cpuminer compiled from src    -a cryptonight -t 7
Intel i7-5960x  360.00  15  140 wolf's latest cpuminer compiled from src    
AMD FX-8320 4.0GHz  305.00  8   125 cpuminer 5/30/14    -a cryptonight -t 7

And top-10 GPUs:

Graphic Card    Memory, GB  ~H/s    Memory manufacturer Power Usage(W)  H/power ratio
XFX Radeon 7990 3   910     375 2.426
Sapphire RX480 Nitro+   4   900 Hynix   100 8.75
XFX RX470   4   869 Hynix   100 8.55
Sapphire Radeon R9 290 Tri-X    4   850 Hynix   175 2.74
Sapphire Radeon R9 290 Tri-X    4   800 Hynix       
MSI RX580 Armor OC  8   750 Samsung     
Sapphire Radeon R9 290X Tri-X   4   745 Hynix   220 3.36
AMD Raedon R9 390   8   730     275 2.901
Sapphire Nitro+ RX480   4   724 Hynix   150 4.82

This google docs spreadsheet has a nice list of GPU/CPU hash rate reports to help you make up your mind!

google docs gpu/cpu spreadsheet

This Google docs spreadsheet has a nice list of GPU/CPU hash rate reports to help you make up your mind!

Here are top-10 CPUs:

CPU ~H/s    Threads TDP, W  Miner app / version Settings / command line
AMD Opteron 32x6276 15000.00    400+    115 wolf    -a cryptonight -t25 (x16)
Intel Xeon E7-8880v3    1805.00 27  150 wolf's latest cpuminer  
AMD Opteron 6272    815.00  30  2x115   wolf's cpuminer -a cryptonight -t 30
Intel Xeon 2xE5-2680v2 (Amazon c38xlarge)   610.00      2x130   cpuminer-multi dev tree (1.0.3 with minor optimisations)    -a cryptonight
AMD Opteron 4x8389  430.00  16  4x115   LucasJones cpuminer / 1.0.3 -a cryptonight -t 16
AMD FX-8320 420 4/8 145 xmr-stak-cpu 1.1.1  -t 4, -lpm:false
Xeon L5640  390.00  12  2x91    wolf's cpuminer -a cryptonight -t 12
AMD FX-8350 370.00  7/8 200 wolf's latest cpuminer compiled from src    -a cryptonight -t 7
Intel i7-5960x  360.00  15  140 wolf's latest cpuminer compiled from src    
AMD FX-8320 4.0GHz  305.00  8   125 cpuminer 5/30/14    -a cryptonight -t 7

And top-10 GPUs:

Graphic Card    Memory, GB  ~H/s    Memory manufacturer Power Usage(W)  H/power ratio
XFX Radeon 7990 3   910     375 2.426
Sapphire RX480 Nitro+   4   900 Hynix   100 8.75
XFX RX470   4   869 Hynix   100 8.55
Sapphire Radeon R9 290 Tri-X    4   850 Hynix   175 2.74
Sapphire Radeon R9 290 Tri-X    4   800 Hynix       
MSI RX580 Armor OC  8   750 Samsung     
Sapphire Radeon R9 290X Tri-X   4   745 Hynix   220 3.36
AMD Raedon R9 390   8   730     275 2.901
Sapphire Nitro+ RX480   4   724 Hynix   150 4.82
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This google docs spreadsheet has a nice list of GPU/CPU hash rate reports to help you make up your mind!

google docs gpu/cpu spreadsheet