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Что лучше gddr5 или gddr6

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GDDR5 vs GDDR6 – What’s the Difference and which do you need?

GDDR5 vs GDDR6 – What’s the Difference and which do you need?

Random Access Memory (RAM) varies dramatically in performance, from one generation to the next; and this is particularly the case between GDDR5 and GDDR6.

But with each upgrade the increase is not just in performance, but also in price. So, the question becomes:

Is the extra cost associated with components that harbor high-end memory modules – like the most recent GDDR6X – really worth it?

Reaching the end of the GDDR6 generation of VRAM (Video RAM), let’s compare the two memory generations and list the differences between the two.

This way, we can get a better understanding of their current purpose and use, while also getting an idea of what we can expect when newer generations of SDRAM begin to appear.

What Does GDDR Stand For?

In short, GDDR stands for Graphics Double Data Rate. This is a type of SDRAM or SGRAM, which stands for Synchronous Dynamic/Graphics Random Access Memory.

Where is GDDR Memory Used?

Where is GDDR Memory Used

As denoted by its name, GDDR memory is used in graphics cards and is utilized in everything from 3D modeling, video editing, graphic design, compositing, and even gaming.

Any type of RAM, be it System RAM or Video RAM, is used to cache Data that is needed by either the CPU or GPU for processing.

You can think of RAM as a very fast storage device – with the downside of volatility, meaning without power, all data is lost.

For 3D Rendering, the VRAM will hold scene Data that can then be accessed by the Render Engine.

In Gaming, as well, the VRAM will hold scene Data, such as animations, textures, meshes, lights and other objects, that the GPU needs to display the current state of the Game-Environment and Characters.

Typical Graphics Cards with GDDR Memory

What are some popular examples of GPUs that use either GDDR5 and GDDR6 SDRAM? Let’s take a look.

Graphics Cards with GDDR5 Memory

NVIDIA
  • GeForce GTX 980 Ti
  • GeForce GTX 1070 [Ti]
  • GTX Titan
  • GeForce GTX 1080 [Ti] (GDDR5X)
  • Titan X Pascal (GDDR5X)
AMD
  • Radeon HD 7990
  • Radeon RX 480
  • Radeon RX 580
  • Radeon RX 590
  • Radeon R9 295X2

Graphics Cards with GDDR6 Memory

NVIDIA
  • GeForce RTX 2080 [Ti]
  • Titan RTX
  • GeForce RTX 3060 [Ti]
  • GeForce RTX 3080 [Ti] (GDDR6X)
  • GeForce RTX 3090 (GDDR6X)
AMD
  • Radeon RX 5600 XT
  • Radeon RX 5700 [XT]
  • Radeon RX 6700 [XT]
  • Radeon RX 6800 XT
  • Radeon RX 6900 XT

GDDR5 vs GDDR6 Compared – What’s the Difference?

The leap from generation to generation usually has an intermediary step, which is denoted by an “X” suffix.

Therefore, before we get into the difference between GDDR5 and GDDR6, let’s also see what upgrades were provided to GDDR5 for enthusiast-level graphics cards.

GDDR5 vs GDDR5X vs GDDR6 vs GDDR6x comparison overview

GDDR5 to GDDR5X

Even for half-generational leaps in memory, we get significant upgrades in performance.

When GDDR5 was succeeded by GDDR5X, we saw a theoretical 50% increase in per pin data rates (increasing from 8 Gb/s to 12 Gb/s), device bandwidth (increasing from 32 GB/s to 48 GB/s), and system bandwidth (increasing from 400 GB/s to 600 GB/s).

In addition, we also have a decrease in required voltage, from 1.5 V to 1.35 V.

The only issue found with GDDR5X is that it was expensive and only found in Nvidia’s higher-end GPUs.

GDDR5(X) to GDDR6

GDDR5(X) to GDDR6

Moving up to GDDR6, we see an equivalent increase of performance that has it surpass GDDR5 by a 100% margin, and GDDR5X by a 50% margin in most performance metrics.

Per-pin data rates were increased to 16 Gb/s, and its bandwidth increased to 64 GB/s.

The system bandwidth saw a smaller upgrade, increasing from 600 GB/s to 700 GB/s. The power consumption was also decreased, from 1.35 V to 1.25V.

Another important upgrade found between GDDR5(X) and GDDR6 is in the prefetch memory architecture; as the memory arrays are separated into two channels, instead of one.

These two fully independent channels have a read or write memory access of 256 bits (32 bytes wide).

This access granularity (amount of data read or written by a single read/write command) configuration allows for double the burst length of GDDR5, per channel.

GDDR6 to GDDR6X

Though once again only utilized by the most expensive Nvidia GeForce GPU models, GDDR6X is a significant performance upgrade to GDDR6. It has a 21 Gb/s per pin data rate, an 84 GB/s device bandwidth, and a 1 TB/s system bandwidth – an increase of almost 43% in comparison to GDDR6.

This drastic increase in system bandwidth was made possible using a new signal transmission technology – named PAM4 – by Micron; providing multi-level signaling.

Power consumption also marginally dropped by about 3% in power per bit transferred.

How Much Faster is GDDR6 Over GDDR5 on Average?

We’ve seen the theoretical difference in performance between the two generations of GDDR SGRAM, but how do they compare in real-world benchmarks?

If all other external factors are equal, does the memory itself actually provide a tangible increase in performance?

Well, there is one way to test the intergenerational impact of these memory modules, and that is the Nvidia GeForce GTX 1650. Why is this GPU perfect for the task?

Nvidia released two iterations of the same GPU: one with GDDR5 VRAM, and one with GDDR6. They have almost identical specifications, with a few exceptions.

Specifications

The GDDR5 version has higher base (1485 MHz vs 1410 MHz) and higher boost (1665 MHz vs 1590 MHz) clock speeds.

On the other hand the GDDR6 version has a higher effective memory clock speed (12,000 MHz vs 8,000 MHz), and a higher memory bandwidth (192 GB/s vs 128 GB/s), despite having the same memory bus width of 128 bits.

Performance Benchmarks

According to benchmarks featured by VideoCardz, the GDDR6 Nvidia GeForce GTX 1650 displayed a performance boost between 5% and 8% for multi-purpose synthetic tests.

GDDR5 vs GDDR6 Performance Benchmarks on Nvidia GTX 1650

It also displayed a varied boost in gaming performance, ranging between 2% and 10% (depending on the game); which averages out to about 6%.

Additionally, despite both GPUs having the same Thermal Design Power (TDP) of 75 watts, the GDDR6 model used ~9% less power than the GDDR5 version.

FAQs

Now that we have a general idea of what differentiates GDDR5 and GDDR6 memory types, let’s take a look at some of the most common questions related to the topic.

Is 4 GB GDDR6 Better Than 8 GB GDDR5?

The answer to this question depends on whether or not the VRAM has the same memory bus. If they do, then the GDDR6 will offer double the memory speed and bandwidth of the GDDR5 VRAM.

Additionally, GDDR6 consumes less power, and draws 13% less Voltage than its predecessor, allowing the surplus in energy to be used by the GPU itself.

Therefore, if the memory bus is equal in size, GDDR6 4 GB of GDDR6 is better than 8 GB GDDR5, but to a marginally noticeable extent.

Of course, only in terms of performance! If you need more than 4GB of VRAM for your type of workloads, you’ll likely see a higher performance with a larger VRAM pool into which your workload fits entirely, even if it is slightly slower.

Can I Replace GDDR5 with GDDR6?

Can you replace VRAM

Unfortunately VRAM is not replaceable the same way DRAM is, so it’s not like a set of memory sticks that you can add and remove according to your needs.

That being said, it is technically possible to change the memory chips of a GPU, but you would need a specialist with a BGA rework station and knows exactly how to carry out the process.

Contrary to a PC’s regular System DRAM, GDDR VRAM is soldered onto the GPU’s PCB.

Is the GTX 1650 GDDR5 or GDDR6?

Funny enough, the answer to this question is: yes. The Nvidia’s GeForce GTX 1650 has two distinct versions which are named G5 and G6. The G5 has GDDR5 VRAM, while the G6 has GDDR6.

Is 8 GB of GDDR6 Enough?

This will depend on your intended use. For most 1080p gaming applications, 8 GB of either GDDR5 or GDDR6 VRAM is more than enough. However, for doing professional work, such as 3D GPU Rendering, High-Poly Sculpting, or 4K Video Editing, you’ll see fewer slowdowns with more than 8GB of RAM.

If you’re wondering what memory capacity you need for your specific workload, make sure to check out our article written for this exact topic.

Why Is There a GDDR6 Shortage?

There, indeed, has been a shortage of GDDR6 as of late (2020-2021), which has limited the supply rate for both Nvidia RTX 30 Series and Radeon RX 6000 Series GPUs.

There are several reasons why we may be experiencing this shortage.

Firstly, almost all current-generation GPUs use GDDR6; with the exception of some high-end Nvidia GeForce RTX 30 Series GPUs.

This also includes the two latest gaming consoles: the Playstation 5 and the Xbox Series X/S.

Other factors include: the global semiconductor shortage and the fact that shipping priority has been allocated for medical supplies. GDDR6X memory is not as scarce as GDDR6, but, once again, it is only used in select Nvidia GeForce RTX 30 Series models.

Do You Need a New Motherboard for GDDR6?

Unlike DRAM, the motherboard is not dependent on the generation of GPU memory found in your graphics card. This means that if your Motherboard already runs a GPU with GDDR5 Memory, it will support a GeForce GTX 1650 (or other GPU) with GDDR6 video memory.

Conclusion

With each passing generational advancement in VRAM, we see a significant boost in performance; and this was definitely the case in the upgrade between GDDR5 and GDDR6.

However, there are some signs of diminishing returns that are beginning to appear in certain aspects of their performance.

Can we expect these diminishing returns to be exacerbated as VRAM technology progresses or will new and exciting innovations perpetuate the trend of a 50% to 100% increment in effective data rates?

Over to you

What’s your opinion on the matter? Let us know in the comments below! Also, if you have any questions on what GPU (and its accompanying VRAM) to choose from, make sure to leave a post in our expert forum.

GeForce GTX 1650 GDDR6 vs GDDR5 Comparison & Benchmarks

GeForce GTX 1650, the budget graphics card, has gotten a little better as it now comes with GDDR6 memory. The card is very popular among gamers with a limited budget and is a boon for older systems that have a non-upgradable 300W PSU with no 6-pin/8-pin PCIe power connectors. The GDDR5 version of the GeForce GTX 1650 is around 60% faster than the GTX 1050 and about 35% faster than the GTX 1050 Ti. The card can run almost all the modern-day games on medium-high settings at 1080p with 50 to 60 FPS on average. It is also a pretty good card for eSports gaming, as it can play almost all the major titles without feeling underpowered. The new version of GTX 1650 with GDDR6 memory is expected to perform better because of superior memory, so here I am going to compare both of these cards based on important factors.

GTX-1650-GDDR6-vs-GDDR5

GeForce GTX 1650 GDDR6 vs GTX 1650 GDDR5

Here is the comparison between GTX 1650 GDDR5 and GTX 1650 GDDR6 graphics cards, based on their specifications, performance, pricing, power consumption, and features.

GPU & CUDA Cores

Both these cards share the same TU117 GPU and come with the same amount of CUDA Cores, which is 896. The cards are built on the Turing GPU architecture and are built on the 12nm manufacturing process. However, the GDDR5 and GDDR6 versions differ in the GPU clock speeds as the GDDR6 model has a lower base and boost clock speeds compared to that of the GDDR5 variant.

GTX 1650 GDDR5 GTX 1650 GDDR6
GPU Chip TU117 TU117
GPU Architecture Turing Turing
Base / Boost Clock 1485 MHz / 1665 MHz 1410 MHz / 1590 MHz
CUDA Cores 896 896
Manufacturing Process 12nm 12nm

Video Memory [VRAM]

The amount of VRAM on both the cards remains the same, which is 4GB, but the older one comes with GDDR5 memory, and the newer one comes with GDDR6 memory. Moreover, both of these memories have a 128-bit memory interface, but they differ in memory speed and bandwidth. The GDDR5 runs at 8Gbps and offers memory bandwidth of 128GB/s, while the GDDR6 runs at a faster 12Gbps speed and offers higher memory bandwidth of 192GB/s. This means the GDDR6 variant has 50% faster memory and offers 50% higher bandwidth, compared to the GDDR5 one.

GTX 1650 GDDR5 GTX 1650 GDDR6
Memory Size 4GB GDDR5 4GB GDDR6
Memory Interface 128-bit 128-bit
Memory Speed 8Gbps 12Gbps
Memory Bandwidth 128 GB/s 192 GB/s

Features

Nothing is changed in the features list as both of them come with the same set of features and support DirectX 12, OpenGL 4.6, Vulkan API, FreeSync/G-Sync, and use the same Volta NVIDIA Encoder (NVENC).

Gaming Performance

Below is the gaming performance of these two graphics cards in popular games at 1080p resolution.

GTX-1650-GDDR6-vs-GDDR5-Gaming-Benchmarks

From the above benchmarks, you can see that the GDDR6 version is faster than GDDR5 one but not by a huge margin. It is around 7% faster (on average) than the GDDR5 model, and it can be seen that some games do benefit from the increased memory bandwidth, while in others, there is almost no performance increase.

Power Consumption

On the power consumption front, there is almost no difference as both the cards consume 75W of power and require a 300W power supply for their working. The basic or standard models of these cards do not require a 6-pin PCIe power connector, but some highly overclocked models do require a 6-pin PCIe connector to provide stability during maximum load.

GTX 1650 GDDR5 GTX 1650 GDDR6
Power Consumption 75W 75W
Recommended PSU 300W 300W

Pricing & Availability

Officially, there is no difference in the price of these cards, but the custom models with better coolers and higher overclocking do cost more than the standard models with basic coolers. The GDDR5 model will eventually be phased out, and the GDDR6 model will replace it in the future. You can check the latest prices of these cards from the links given below.

GeForce GTX 1650 GDDR6 vs GDDR5 Specifications

GTX 1650 GDDR5 GTX 1650 GDDR6
GPU Chip TU117 TU117
GPU Architecture Turing Turing
Base / Boost Clock 1485 MHz / 1665 MHz 1410 MHz / 1590 MHz
CUDA Cores 896 896
Memory Size 4GB GDDR5 4GB GDDR6
Memory Interface 128-bit 128-bit
Memory Speed 8Gbps 12Gbps
Memory Bandwidth 128 GB/s 192 GB/s
Bust Interface 128-bit 128-bit
DirectX 12 12
OpenGL 4.6 4.6
Vulkan API Yes Yes
SLI Ready NA NA
G-Sync/ FreeSync Yes Yes
Power Consumption 75W 75W
Recommended PSU 300W 300W

See also:

  • Best GTX 1650 GDDR6 Cards for 1080p Gaming
  • GTX 1650 vs RX 570 vs GTX 1050 vs GTX 1050 Ti Comparison

Final Thoughts

There is nothing special about the new GDDR6 version of the GTX 1650 card except for the GDDR6 memory. Also, there is not much of a performance and power consumption difference between the two. The GDDR6 one is a little faster and does offer higher memory bandwidth, which may help in certain conditions. The GTX 1650 still remains an excellent choice for older systems with weaker power supply and is also a pretty decent card for budget gamers who games at 1080p with medium-high settings. If you have any queries regarding graphics cards, then ask them in the comment section below.

(*This post may contain affiliate links, which means I may receive a small commission if you choose to purchase through the links I provide (at no extra cost to you). Thank you for supporting the work I put into this site!)

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About The Author
Akshat Verma

I am a PC Gamer and a Hardware Enthusiast. I love Graphics Cards and I have been digging them since GeForce 3 series. I have done M.Tech in IT and B.E. in Computer Science & Engineering.

14 Comments

Max April 13, 2020

Hi! I read in MSI Site and Asus site that no one 1650 have 192bit memory bandwidth in their products, you find this producto in the market?
6GB 192bits??
Thaks and great article!

Akshat Verma April 13, 2020
Check here https://www.nvidia.com/en-in/geforce/graphics-cards/gtx-1650/
shadona May 12, 2021

hi i have one of these the gtx 1650 can you tell me if i can run this app requires version 1.13.5.0 operating system needs be 10.0.17134.0 but i need at east 6 gb of gpu will this computer run this app

Akshat Verma May 12, 2021
What app are you talking about? Please provide specific details.
shadona renee burks May 12, 2021

It’s a app to mine eth and those I sent you was the requirements to use the app I was just wondering will my laptop run the app I have a Acer nitro 5 Nvidia GTX 1600 laptop

shadona renee burks May 12, 2021

Here’s the link to the app I’m talking about I just wanted to just try it out https://losttech.software/Downloads/Mine/

Akshat Verma May 12, 2021

Not sure because the app specifically says “Requires GPU with at least 6GB of GPU memory”. Maybe you can try it out. I have a feeling that it should work.

shadona renee burks May 12, 2021
Ok cause I was trying to figure out how many GPU memory it has is there away to find out
Akshat Verma May 12, 2021

You can use GPU-Z software to find out details about your GPU. Here is the download link https://www.techpowerup.com/gpuz/

shadona renee burks May 12, 2021
It has a 8 gb ram and a 32 hard drive will that 8 gb ram is what it’s talking about
Akshat Verma May 12, 2021
No, the GPU memory or VRAM.
shadona renee burks May 12, 2021

Ok it’s good for cryptocurrency mining like dogecoin cause I use unmineable website I was going to try on this computer

Fernando July 28, 2021

Hi. Thanks for the article, very useful. There is an error on the section “Video memory [VRAM]” When you said, “The GDDR5 runs at 12Gbps and offers memory bandwidth of 128GB/s, while the GDDR6 runs at faster 12Gbps speed and offers higher memory bandwidth of 192GB/s.” The GDDR5 version runs at 8Gbps according to the included chart.

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