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Review: Intel Core i7-4790K 'Devil's Canyon' (22nm Haswell)

by Tarinder Sandhu on 3 June 2014, 07:30

Tags: Intel (NASDAQ:INTC)

Quick Link: HEXUS.net/qace2j

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Test Methodology

Intel Core i7-4790K Specification


Comparison Processor Configurations

CPU
AMD
Intel
A10-7850K
A8-7600K
A10-6800K
A8-6500T
Core i7-4790K
Core i7-4770K
Core i5-4670
Core i5-4440
Core i3-4330
Core i7-4770R
Chip TDP
95W
65W/45W
100W
65W
88W
84W
84W
84W
54W
65W
Current price
£130
£90
£105
£80
£240
£240
£160
£130
£95
NA
Motherboard
ASRock FM2A88X-ITX+
Asus Z97-A
Gigabyte Z87-D3HP
Gigabyte M4HM87P
BIOS
1.90
0902
F5
NA
Chipset Driver
AMD Catalyst 13.12
Intel Inf 9.4.0.1027 and IMEI 9
DDR3 Memory
AMD Gamer Series 16GB (2x8GB)
G.Skill 8GB (2x4GB)
Memory Timings
10-11-11-28-2T @ 2,133MHz
9-10-9-27-2T @ 1,600MHz
9-10-9-27-2T @ 1,866MHz
11-11-11-28-2T @ 1,600Hz
Integrated Graphics
Radeon R7
Radeon R7
HD 8670D
HD 8550D
HD 4600
HD 4600
HD 4600
HD 4600
HD 4600
Iris Pro 5200
IGP driver
AMD Catalyst 13.30 RC3
Intel 15.33.8.64.3379
Disk Drive
Samsung 840 Pro 250GB
Intel mSATA 180GB
Chassis
Corsair Graphite 600T
Gigabyte Brix
Power Supply
Corsair AX760i
Gigabyte external
Operating System
Windows 8.1 Pro 64-bit

CPU and Memory Benchmarks

HEXUS PiFast Our number-crunching benchmark stresses a single core by calculating Pi to 10m places
CineBench R15 Using Cinebench's multi-CPU render, this cross-platform benchmark stresses all cores
wPrime 2.1.0 Another number-crunching benchmark that stresses all available CPU cores/threads
AIDA64 v4.00.2805
Benchmark that analyses memory bandwidth and latency

Multimedia Benchmarks

LuxMark 2.0 An OpenCL rendering benchmark
MuseMage 1.9.6 An OpenCL image-manipulation benchmark (64-bit)
HandBrake 0.9.9.1 Free-to-use video encoder that stresses all CPU cores (64-bit)

System Benchmarks

PCMark 8 v2.0 System-wide examination that uses the Home preset, run with OpenCL acceleration
3DMark DX11, run at the Firestrike default test
SiSoft Sandra 2014 Aggregate score that takes a composite of 12 system-wide benchmarks

Gaming Benchmarks

BioShock Infinite DX9, 1,280x720 and 1,920x1,080 medium quality
GRID 2 DX9, 1,280x720 and 1,920x1,080 high quality
Total War: Rome II DX9, 1,280x720 and 1,920x1,080 medium quality

Miscellaneous Benchmarks

Power Consumption While idling and when running wPrime and GRID 2

Notes

Intel did not provide the chip for review today. It was obtained via a third party and its performance may not be wholly indicative of retail Devil's Canyon processors.

It makes obvious sense to compare against the Core i7-4770K, the chip it replaces as the Haswell head honcho. To keep comparisons fair, we're testing both processors on an Asus Z97-A motherboard equipped with the latest BIOS at the time of writing, version 0902.

It is reasonable to assume that overclocking plays a big part in considering this processor. However, our engineering sample exhibited unexpectedly poor overclocking potential, barely stable at an all-core 4.4GHz. We're awaiting retail samples before doling out advice on just how high the average Core i7-4790K is likely to go: stay tuned for that.