- Jun 25, 2004
- 5,530
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Snagged a fair deal on a Haswell i3 as an upgrade for my wife's aging Q6600 rig, and here's my results:
Normalized around the stock i5
Original data can be found here.
The basics:
Core i5 3570K, ASRock Z77 Extreme4, 2x 4GB DDR3 1600 9-9-9-24 XMP 1.25v, Gigabyte Radeon HD7850 underclocked to (860/1200), Catalyst 14.3 Beta, Windows 8.1 x64
Stock is 3.6/3.7/3.8/3.8
Overclocked is 4.6GHz (28%/24%/21%/21% higher)
Core i3 4130 (3.4GHz), MSI B85M-G41, 1x 4GB DDR3 1600 9-9-9-24 XMP 1.35v, MSI Radeon HD7850 @ stock (860/1200), Catalyst 14.3 Beta, Windows 8.1 x64
Q6600 (2.4GHz), Gigabyte EX38-DS4, 6GB DDR2 800 5-5-5-15 1.8v, MSI Radeon HD7850 @ stock (860/1200), Catalyst 14.3 Beta, Windows 8.1 x64
I'd like to highlight that the i3 is running in single channel because I got a screaming deal on the RAM. I figured it should be fine, since an i3 is roughly half an i7.
I only included the games she and I play regularly (had installed on both machines). All games were at max settings, 1920x1080 with no AA. Skyrim has around 50 mods installed and in places dips into the 20's, so I would expect it to be very GPU limited. Its data sample was taken in a particularly graphically intensive area. Guild Wars 2 FPS sample was taken in Rata Sum in a rather out-of-the-way spot where I was able to control the amount of activity around me to some extent, while still being much more CPU-heavy than a spot in the wilderness. Civ5 has the latest expenasion and data was taken from a save point 490 turns into an 8 player game.
In Handbrake, the Haswell i3 held around a 40% lead over the older Core2 Quad. Assuming perfect scaling, I'd have needed to clock the C2Q at 3.35GHz to match the Haswell dual. The i3 clocked in at 67% as fast as the previous generation i5, or the i5 held a 49% lead. Normalized for clock speed, the i5 is only 40% faster than the i3.
In the Cinebench CPU test, the i3 was around twice as fast as the C2Q and 63% of the i5. OpenGL rendering actually showed a small advantage to the i3, repeatable, though it was within 2% of the i5. The i3 completed the OpenGL test with 2.5x the framerate of the C2Q.
In Guild Wars 2, the i3 came out 75% faster than the C2Q with a 40% clock advantage, or from another perspective, you'd need a Kentsfield at 4.2GHz to match it, assuming perfect scaling. The i5, while clocked 6% higher, delivered 12% higher FPS at stock and did not scale with overclocking. Moving from C2Q gave an absolute improvement of 25fps to 43.5fps. There are definitely more CPU-bound areas, and I may revisit this test to see if the i5 might not pull further ahead in this situations.
In Civilization 5, the i3 delivered 50% higher framerates with 40% higher clocks than the C2Q. It's dead-even with a stock Ivy Bridge i5 clocked 6% higher, which itself scales linearly with clockspeed. I wish I had a method for comparing turn-processing time, framerate isn't even close to the entire story.
In Skyrim, the i3 system held a 3.5% (repeatable) advantage over the i5, both at stock and overclocked. I suppose platform improvements might be responsible for this? Regardless, an i3 delivers the same experience as an i5 in this (admittedly older) title.
____
Handbrake, Cinebench CPU and IBT all look to saturate all available threads, with IBT running a bit slower on the i3 presumably because hyperthreading can't extract anything out of pure-AVX workloads.
Cinebench OpenGL, SuperPi, seem to be single-threaded or two-threaded workloads (based on the graph, though I already know this). This could be deduced based on the overclocked i5 pulling ahead by ~21% rather than ~28%, which is its 2-core clockspeed advantage when overclocked. In lightly-threaded games where the CPU is not sufficient, I think you can expect the graph to resemble SuperPi's pretty closely.
Civ5 appears to be somewhere in between, and is probably pretty representative of how moderately threaded games will run.
Skyrim and Guild Wars 2 are examples of "good enough", with the stock i5 and i3 being just fast enough as to not cause a CPU bottleneck in the areas I sampled in those games. Note that not all areas are equally CPU bottlenecked though; I simply didn't capture it in my data.
____
I've disassembled the Q6600 for sale, but I can still do comparisons between a Haswell i3 and an Ivy Bridge i5, if anyone would like to make requests.
I have Battlefield 3/4, Minecraft, Sim City Online, Dolphin (emulator), The Sims 3, and SoaSE I can easily do comparisons with, though coming up with a method of benchmarking that reflects any real situations might require some thought. My brother has Crysis 3 which I might be able to borrow, but it won't be in the next few days. I'm open to downloading free MMOs for testing.
Normalized around the stock i5

Original data can be found here.
The basics:
Core i5 3570K, ASRock Z77 Extreme4, 2x 4GB DDR3 1600 9-9-9-24 XMP 1.25v, Gigabyte Radeon HD7850 underclocked to (860/1200), Catalyst 14.3 Beta, Windows 8.1 x64
Stock is 3.6/3.7/3.8/3.8
Overclocked is 4.6GHz (28%/24%/21%/21% higher)
Core i3 4130 (3.4GHz), MSI B85M-G41, 1x 4GB DDR3 1600 9-9-9-24 XMP 1.35v, MSI Radeon HD7850 @ stock (860/1200), Catalyst 14.3 Beta, Windows 8.1 x64
Q6600 (2.4GHz), Gigabyte EX38-DS4, 6GB DDR2 800 5-5-5-15 1.8v, MSI Radeon HD7850 @ stock (860/1200), Catalyst 14.3 Beta, Windows 8.1 x64
I'd like to highlight that the i3 is running in single channel because I got a screaming deal on the RAM. I figured it should be fine, since an i3 is roughly half an i7.
I only included the games she and I play regularly (had installed on both machines). All games were at max settings, 1920x1080 with no AA. Skyrim has around 50 mods installed and in places dips into the 20's, so I would expect it to be very GPU limited. Its data sample was taken in a particularly graphically intensive area. Guild Wars 2 FPS sample was taken in Rata Sum in a rather out-of-the-way spot where I was able to control the amount of activity around me to some extent, while still being much more CPU-heavy than a spot in the wilderness. Civ5 has the latest expenasion and data was taken from a save point 490 turns into an 8 player game.
In Handbrake, the Haswell i3 held around a 40% lead over the older Core2 Quad. Assuming perfect scaling, I'd have needed to clock the C2Q at 3.35GHz to match the Haswell dual. The i3 clocked in at 67% as fast as the previous generation i5, or the i5 held a 49% lead. Normalized for clock speed, the i5 is only 40% faster than the i3.
In the Cinebench CPU test, the i3 was around twice as fast as the C2Q and 63% of the i5. OpenGL rendering actually showed a small advantage to the i3, repeatable, though it was within 2% of the i5. The i3 completed the OpenGL test with 2.5x the framerate of the C2Q.
In Guild Wars 2, the i3 came out 75% faster than the C2Q with a 40% clock advantage, or from another perspective, you'd need a Kentsfield at 4.2GHz to match it, assuming perfect scaling. The i5, while clocked 6% higher, delivered 12% higher FPS at stock and did not scale with overclocking. Moving from C2Q gave an absolute improvement of 25fps to 43.5fps. There are definitely more CPU-bound areas, and I may revisit this test to see if the i5 might not pull further ahead in this situations.
In Civilization 5, the i3 delivered 50% higher framerates with 40% higher clocks than the C2Q. It's dead-even with a stock Ivy Bridge i5 clocked 6% higher, which itself scales linearly with clockspeed. I wish I had a method for comparing turn-processing time, framerate isn't even close to the entire story.
In Skyrim, the i3 system held a 3.5% (repeatable) advantage over the i5, both at stock and overclocked. I suppose platform improvements might be responsible for this? Regardless, an i3 delivers the same experience as an i5 in this (admittedly older) title.
____
Handbrake, Cinebench CPU and IBT all look to saturate all available threads, with IBT running a bit slower on the i3 presumably because hyperthreading can't extract anything out of pure-AVX workloads.
Cinebench OpenGL, SuperPi, seem to be single-threaded or two-threaded workloads (based on the graph, though I already know this). This could be deduced based on the overclocked i5 pulling ahead by ~21% rather than ~28%, which is its 2-core clockspeed advantage when overclocked. In lightly-threaded games where the CPU is not sufficient, I think you can expect the graph to resemble SuperPi's pretty closely.
Civ5 appears to be somewhere in between, and is probably pretty representative of how moderately threaded games will run.
Skyrim and Guild Wars 2 are examples of "good enough", with the stock i5 and i3 being just fast enough as to not cause a CPU bottleneck in the areas I sampled in those games. Note that not all areas are equally CPU bottlenecked though; I simply didn't capture it in my data.
____
I've disassembled the Q6600 for sale, but I can still do comparisons between a Haswell i3 and an Ivy Bridge i5, if anyone would like to make requests.
I have Battlefield 3/4, Minecraft, Sim City Online, Dolphin (emulator), The Sims 3, and SoaSE I can easily do comparisons with, though coming up with a method of benchmarking that reflects any real situations might require some thought. My brother has Crysis 3 which I might be able to borrow, but it won't be in the next few days. I'm open to downloading free MMOs for testing.
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