Comparisons / Comparison of Radeon HD 7850 and Radeon HD 5770 Engineering Sample

Comparison of Radeon HD 7850 and Radeon HD 5770 Engineering Sample [S]ave

Attribute
Radeon HD 7850 ×
Radeon HD 5770 Engineering Sample ×
GPU
Release year (year)20122009
Reference card-ATi Radeon HD 5770 850 MHz 1 GB
GPU brandAMDATI
GPU namePitcairn PROJuniper
MarketDesktopDesktop
Clock speed (MHz)860850
Is dual GPU--
ModelRadeon HD 7850Radeon HD 5770 Engineering Sample
Memory
Memory (MB)2,0481,024
Memory bandwidth (GB/s)153.676.8
Memory bus (bit)256128
Memory typeGDDR5GDDR5
Memory clock speed (MHz)1,2001,200
Effective memory clock speed (MHz)4,8004,800
Noise and power
TDP (W)130108
Load power consumption (W)271258
Idle power consumption (W)107113
Load noise level (dB)46.741
Idle noise level (dB)41.540.4
Raw performance
Pixel rate (GPixel/s)27.5213.6
Render output processors3216
Texture mapping units6440
Shading units1,024800
Floating-point performance (GFLOPS)1,7611,360
Compute units1610
Texture rate (GTexel/s)5534
Benchmarks
Crysis 33540
Face detection (mPixels/s)47.049.96
T-Rex (GFXBench 3.0)3355.23353.2
Manhattan (GFXBench 3.0)3466.993507.76
Bitcoin mining (mHash/s)249.48122.81
Sky Diver Factor293.45140.24
Thief28-
Fire Strike Factor43.9419.74
Ocean surface simulation (frames/s)-461.22



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