Intel Core i7 4770R review

Intel Core i7 4770R with Iris Pro 5200 graphics.GT1 chip as HD Graphics with six graphics cores.
GT2 is called HD Graphics 4200, 4400 or 4600, with 20 GPU-cores.
GT3 is called Intel HD Graphics 5000 or Intel Iris Graphics 5100. The flagship GT3e is referred to as 'Iris Pro Graphics 5200' with 40 GPU-cores.

Intel Haswell Graphics comparison

	Cores	Frequency (MHz)	GFLOPS	eDRAM (MB)	Max chip TDP (watts)	Overall chip size (mm²)
Iris Pro 5200	40	1,300	832	128	64	348
Iris 5100	40	1,300	832	No	28	264
HD 5000	40	1,100	704	No	15	264
HD 4600	20	1,350	432	No	84	177

In a nutshell, the HD 5000, Iris 5100 and Iris Pro 5200 graphics double the HD 4600's execution units, to 40, and given the maximum frequency is nearly the same, boost potential GFLOPS throughput to almost 2x. HD 5000 and HD 5100 Graphics are interesting insofar as they're specified on low-power processors that ship with a maximum TDP of 28W, ideal for Ultrabooks and thin-and-light laptops. The fastest graphics part is known as Iris Pro, which is otherwise identical to the Iris 5100 apart from featuring 128MB of eDRAM on the same package as the processor, though not integrated into the die itself. The eDRAM acts as a massive last-level cache for both CPU and GPU applications.

Comparison Processor Configurations

CPU	AMD				Intel
	A10-7850K	A8-7600K	A10-6800K	A8-6500T	Core i7-4770K	Core i5-4670	Core i5-4440	Core i3-4330	Core i7-4770R
Chip TDP	95W	65W/45W	100W	65W	84W	84W	84W	54W	65W
Current price	£130	£90	£105	£80	£240	£160	£130	£95	NA
Motherboard	ASRock FM2A88X-ITX+				Gigabyte Z87-D3HP				Gigabyte M4HM87P
BIOS	1.90				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	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