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I have 2 questions about graphics cards' memory

InfinityVive
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Go to solution Solved by Electronics Wizardy,
Just now, InfinityVive said:

Oh, okay, thanks for clearing things up, But what about the ryzen pro CPUs, are they different from other ryzen CPUs?

a few features added for buinesses, but basically the same in all other ways. Im pretty sure there the same die.

Greetings,

 

I have 2 questions about graphics cards' memory/memories as I don't really get it's concept

First, What is the difference between the memory speed and effective memory speed in graphics cards? for example my RX 570 has 1750 MHz memory clock and 7000 MHz effective, does that mean it's running at 1750 MHz or 7000 MHz? what's the difference between both speeds and what are they used for?

 

Second, Why most entry level ~ high end graphics cards come with 1700-ish MHz memory speed, 1750 MHz is the most common, Why is that particular memory speed is what most graphics cards come with?

 

Edit: I know this is the wrong sub-forum to talk about this, But I want to keep my topics count as low as possible, What is the Ryzen Pro series that started rising in popularity for pre-built business PCs? Why are these used in business and office PCs instead of the normal Ryzen CPUs? Is there any difference between Ryzen and Ryzen Pro series?

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with double data rate(and quad on gddr5x and gddr6), you get multiple operations per clock, so the effectie rate of the memory is higher than the clock speed is.

 

There is a lot more than clock speed with memory, as the bus width varies a lot, the wider the bus, the more the bandwidth.

 

But for gpus, don't look too much into the memory,look at reviews of the whole card.

 

5 minutes ago, InfinityVive said:

Why are these used in business and office PCs instead of the normal Ryzen CPUs?

Cause you get extra features like remote management(basically amds vpro) and a few other goodies like some other encryption.

 

6 minutes ago, InfinityVive said:

What is the Ryzen Pro series that started rising in popularity for pre-built business PCs?

Id say Ryzen is still very rare in buiiness desktops. I order a good amount of desktops for work, and dell doesn't have any amd systems now I would order.

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1750MHz is the operating frequency, 7000MHz or 7000Mbps is the bitrate of data transmission. GDDR5 sends 4 bits of data per clock so that's why it's 4x. GDDR6 is 8x and GDDR3 is 2x as a result.

 

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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6 minutes ago, Electronics Wizardy said:

 

 

There is a lot more than clock speed with memory, as the bus width varies a lot, the wider the bus, the more the bandwidth.

 

 

Yes, also that, Why does RX 5500 XT come with 128 Bit bus when RX 570 comes with 256 Bit bus when the RX 5500 XT is supposed to be newer and/or better?

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4 minutes ago, Jurrunio said:

1750MHz is the operating frequency, 7000MHz or 7000Mbps is the bitrate of data transmission. GDDR5 sends 4 bits of data per clock so that's why it's 4x. GDDR6 is 8x and GDDR3 is 2x as a result.

 

Ohhhhhh, Ye well, I also got a question, When overclocking a graphics card, is overclocking it's memory too worth it?

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Just now, InfinityVive said:

Yes, also that, Why does RX 5500 XT come with 128 Bit bus when RX 570 comes with 256 Bit bus when the RX 5500 XT is supposed to be newer and/or better?

the 5500xt is a lower end card, so it doesn't need the bandwidth.

 

Also lowering the bandwith, makes the card slower, so the products are differenatted. 

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Just now, InfinityVive said:

Ohhhhhh, Ye well, I also got a question, When overclocking a graphics card, is overclocking it's memory too worth it?

Might as well, if you don't push it too hard, the risk is low, and you can get a few percent more speed.

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3 minutes ago, Electronics Wizardy said:

the 5500xt is a lower end card, so it doesn't need the bandwidth.

 

Also lowering the bandwith, makes the card slower, so the products are differenatted. 

Do they lower the bandwidth to make the card cheaper or to make higher end options more appealing? and why make the RX 5500xt have lower bandwidth than the card it outperforms (The RX 570)?

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Just now, InfinityVive said:

Do they lower the bandwidth to make the card cheaper or to make higher end options more appealing?

both. Less memory channels = less die space = less cost to make

 

Just now, InfinityVive said:

and why make the RX 5500 have lower bandwidth than the card it outperforms (The RX 570)?

the 570 was a higherend card when it came out in the stack.

 

Also there are some things that can help get more memory bandwidth out of the same hardware, like compressions, which newer cards are better at.

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4 minutes ago, InfinityVive said:

Ohhhhhh, Ye well, I also got a question, When overclocking a graphics card, is overclocking it's memory too worth it?

Yes because there's nothing negative about it, some cards (AMD cards in general, Nvidia Turing) benefit from it a lot.

 

1 minute ago, InfinityVive said:

Do they lower the bandwidth to make the card cheaper or to make higher end options more appealing? and why make the RX 5500xt have lower bandwidth than the card it outperforms (The RX 570)?

Cost reasons, still on GDDR6 because the memory controller design is the same as larger Navis.

 

Bandwidth cannot be treated as metric for the performance of the GPU, otherwise Radeon cards should have steamrolled Geforce cards since birth

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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1 minute ago, Electronics Wizardy said:

both. Less memory channels = less die space = less cost to make

 

the 570 was a higherend card when it came out in the stack.

 

Also there are some things that can help get more memory bandwidth out of the same hardware, like compressions, which newer cards are better at.

Oh, okay, thanks for clearing things up, But what about the ryzen pro CPUs, are they different from other ryzen CPUs?

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Just now, InfinityVive said:

Oh, okay, thanks for clearing things up, But what about the ryzen pro CPUs, are they different from other ryzen CPUs?

a few features added for buinesses, but basically the same in all other ways. Im pretty sure there the same die.

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