Test System and Testing Procedures
|Processor||Intel Core i7-5775C (ES), Intel Core i7-4770K (Retail), AMD A10-7850K (Retail)|
||Corsair HX850W 80 Plus Gold PSU|
|Memory||Mushkin Stealth 2x4GB DDR3|
|Storage||OCZ Agility 4 256GB SSD (OS)|
|Drivers||Intel 10.18.14.4222, AMD Catalyst 15.7 WHQL|
|Motherboard(s)||ASRock Z97 Extreme4 (P2.10), ASUS A88X-Pro (2001)
|Operating System||Windows 8.1 Pro x64|
Latest working BIOS, updates and drivers were used at the time of the review. Each test was conducted at least three times for accuracy.
- Aida64 Engineer 5.20.400
- CineBench R15
- PCMark 8 v2.4.304
- WinRAR 5.01
- x.264 FHD 1.0.1
- x.265 0.1.4
- 3DMark Firestrike – Default Preset
- 3DMark SkyDiver – Default Preset
- Unigine Heaven 4.0 – Built-in Benchmark, Low Quality, Tesselation Moderate, DX11 on 1920×1080
- Unigine Valley 1.0 – Built-in Benchmark, Low Quality, DX11 on 1920×1080
- Alien Isolation – Built-in Benchmark, HIGH preset, 16xAF, 0xAA, Particles HIGH, ShadowMap MED, SSAO Standard on 1920×1080
- Tomb Raider – Built-in Benchmark, HIGH preset on 1920×1080
- Bioshock Infinite – Built-in Benchmark, HIGH Preset on 1920×1080
- Metro Last Light – Built-in Benchmark, Low Preset, SSA OFF, 4xAF on 1920×1080
Price Comparison (tested CPUs in bold):
|Launch Price (Box)||Current Price*|
|Intel Core i7-5820K||$396||$389|
|Intel Core i7-5775C||$377||–|
|Intel Core i7-4790K||$350||$339|
|Intel Core i7-4770K||$350||$348|
*Current listed price via PCPartPicker.com as of July 2015. Priority listing NewEgg.com prices if available.
The high price of the i7-5775C is quite obvious sitting very close to the i7-5820K HEDT part price-wise and costs a lot more than the more powerful i7-4790K Devil’s Canyon processor. For enthusiasts running a discrete graphics card, it is obvious that the i7-5775C is not aimed directly for them. The eDRAM integration defintely adds to the price but looking at the Intel pricing trend however, this is not really surprising as unlike AMD, price cuts is not a valid strategy in staying relevant for Intel.
The objective in this article is to see how well the new i7-5775C performs over the original flagship i7-4770K while looking at how much graphics power the new Iris Pro technology brings compared to AMD’s R7 APU, the current desktop standard for integrated graphics performance. An A10-7870K and i7-4790K are also available in retail but considering these are higher clocked variants, information on how these will perform can easily be extrapolated from the results of comparing the i7-5775C to the A10-7850K and i7-4770K.
i7-5775C vs i7-4770K Features Comparison: