Core i5-1335U Vs Core i5-1235U: Ultimate Comparison

Intel’s 13th Gen Raptor Lake CPUs promised 41% better multi-threaded performance and a 15% improvement in single-threaded performance. Today, we will see if these figures hold any weight as we compare two Core i5 CPUs one generation apart, in Core i5-1335U vs Core i5-1235U.

Key Takeaways

• Both CPUs use the same Intel 7 processing nodes, although the Core i5-1335U uses a more efficient version of the node.
• On average, the Core i5-1335U is 20.3% faster in multi-core applications and 5.3% faster in single-core applications.
• Cost-wise, Core i5-1335U laptops are in the $699-$2028 range while Core i5-1235U lie in the $289-$1189 range. 
• The Core i5-1235U provides better value since the performance gap isn’t as significant as the price gap.

Also Read: Core i5 1235U Vs Ryzen 5 7530U

Comparison Table 

Let’s see how the two mobile CPUs line up.

Architectural Differences

Here’s a look at the few minor differences between the two chips.

1. Processing Nodes: Although both CPUs use the same nodes, Intel has emphasized improved efficiency in Raptor Lake.
2. Clock Speeds: The Core i5-1335U boasts slightly higher boost clock speeds at 4.6GHz for the P-cores and 3.4GHz for the E-cores. In comparison, the Core i5-1235U clocks 4.4GHz for the E-cores and 3.3GHz for the E-cores on boost mode.
3. Memory Support: The Core i5-1335U, with its Raptor Lake platform, supports an improved DDR5 transfer speed of up to 6400 MT/s. LPDDR5x support is also added, which the Alder Lake Core i5-1235U does not support.
4. iGPU: Another insignificant difference, but the Core i5-1335U adds 50MHz to the GPU boost clock frequency at 1250MHz. 

Related: Core i5-1335U Vs Core i5-1135G7

Core i5-1335U Vs Core i5-1235U: Benchmarks

Here’s how the two CPUs compare in multi-core and single-core performance.

Cinebench R23

• Starting with the Cinebench R23 multi-core test, the Core i5-1335U scores 7348 points compared to 6547 of the Core i5-1235U. Thus, it’s 12.2% ahead.
• In the single-core test, the Core i5-1335U leads narrowly with 1712 points, over 1630 of the Core i5-1235U. 

Geekbench 5

• Moving on to Geekbench 5, the Core i5-1335U has a 19.8% lead here with 7484 points. The Core i5-1235U scored 6343 points.
• As for the single-core test, the Core i5-1335U continues its lead with 1693 points, just ahead of the Core i5-1235U. 

Also Read: Core i7-1255U Vs Core i5-1335U

Passmark

• Finally, in Passmark, the Core i5-1335U maintained impressive multi-core performance with 16895 points. The Core i5-1235U fell short with 13567 points.
• The single-core test saw the Core i5-1335U scoring 3451 points compared to 3299 of the Core i5-1235U. Here, the Core i5-1335U has a 4.6% lead.

More Comparisons: Core i7-1255U Vs Core i5-1335U

Overall Performance

I’ve averaged the multi-core and single-core scores across the three games for a more definitive result. Let’s take a look. 

• Multi-core Performance: The Core i5-1335U averaged 10575 points, while the Core i5-1235U recorded 8785 points on average. This means the Core i5-1335U is, on average, 20.3% faster than the Core i5-1235U in multi-core applications.
• Single-core Performance: Across the single-core tests, the Core i5-1335U averaged 2285 points over 2168 points of the Core i5-1235U. Thus, on average, the Core i5-1335U shows 5.3% better single-core performance than the Core i5-1235U.

Also Check: Core i5 1335U Vs Ryzen 5 7640U

Laptop Prices

Let’s take a look at the laptop prices for both CPUs. 

Note: The prices have been taken from Amazon US and are valid as of September 2023. 

• Core i5-1335U: Laptops using this mobile CPU start at $649, with the best-selling laptops lying in the $699-$1099 range. The most expensive laptops can cost you up to $2028. 
• Core i5-1235U: Laptops using this Alder Lake chip start at just $289. The most popular laptops range from $479 to $799. Lastly, the most expensive laptop costs $1199. 

Core i5-1235U Vs Core i5-1335U: Which One Offers Better Value? 

How do the two CPUs compare in performance per dollar?

• You can get a Core i5-1235U laptop for as cheap as $289, which is about 124% cheaper than what the cheapest Core i5-1335U laptop will cost you.
• Granted, the Core i5-1335U showed better multi-core and single-core scores, but this massive price gap negates that performance gap.

As I mentioned, the Core i5-1335U is just a refresh of the Core i5-1235U with very minor differences. It still managed a significant improvement in multi-core performance, albeit the single-core performance difference is much smaller. All-in-all, it’s a decent improvement for one generation, but again, it’s just not worth it at that price difference.

Thus, the Core i5-1235U offers a much better value than the Core i5-1335U. 

Similar Comparison: Intel Core i5-1235U Vs AMD Ryzen 5 7520U

Conclusion

I found that the Core i5-1335U is essentially a refresh of the Core-i5-1235U with minor differences and perhaps an improved Intel 7 node.

As such, there isn’t a very big performance gap, especially in single-core performance. On top of that, Core i5-1235U laptops have been much cheaper since Raptor Lake’s launch. Thus, the Core i5-1235U generally provides much better value. 

The only noticeable advantage of the Core i5-1335U is improved DDR5 speeds and added LPDDR5x support. In any case, I hope this guide has helped you choose your next mobile CPU.

Related: Intel Core i5-1235U Vs AMD Ryzen 5 7520U

Pros And Cons