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Search: Posts Made By: OpenGL guy
Forum: 3D Architectures & Chips 09-Oct-2014, 22:03
Replies: 53
Views: 8,443
Posted By OpenGL guy
There's probably a bit more to it than that. Do...

There's probably a bit more to it than that. Do you think their GPU supports sin(double) for example?
Forum: 3D Architectures & Chips 10-Sep-2014, 22:43
Replies: 11
Views: 1,542
Posted By OpenGL guy
Triangle rate is about equal to vertex rate when...

Triangle rate is about equal to vertex rate when you are working with primitives like triangle strips and fans. In those cases, you just need 1 new vertex to make a triangle from two old vertices....
Forum: 3D Hardware, Software & Output Devices 11-Jul-2014, 17:06
Replies: 29
Views: 3,882
Posted By OpenGL guy
The GPU has to do some extra work to do the...

The GPU has to do some extra work to do the scaling. Say your game is running at 1024x768 and your monitor is 2048x1536 (yeah like an old CRT). If you want to keep the display at it's native setting...
Forum: 3D Architectures & Chips 24-Jun-2014, 01:31
Replies: 2,731
Views: 404,351
Posted By OpenGL guy
I remember the days of decapping chips so you...

I remember the days of decapping chips so you could FIB them (use a Focused Ion Beam to make a fix for testing). I don't recall how much things cost back then but I imagine it's tougher now.
Forum: 3D Hardware, Software & Output Devices 21-May-2014, 23:08
Replies: 76
Views: 8,313
Posted By OpenGL guy
LOL it's nothing of the sort. If you are writing...

LOL it's nothing of the sort. If you are writing an OpenGL 4.3 application, there's no need to enable the compatibility profile except to keep a certain IHV happy. OpenGL 4.3 specific code will never...
Forum: 3D Hardware, Software & Output Devices 21-May-2014, 21:45
Replies: 76
Views: 8,313
Posted By OpenGL guy
This is *precisely* the point. "Don't rewrite...

This is *precisely* the point. "Don't rewrite your code! Just use the compatibility profile."
Forum: 3D Hardware, Software & Output Devices 21-May-2014, 18:38
Replies: 76
Views: 8,313
Posted By OpenGL guy
If you have "existing" code, why would you change...

If you have "existing" code, why would you change it just to add a compatibility profile? Your code will continue to work without any modifications.
Forum: 3D Hardware, Software & Output Devices 21-May-2014, 18:22
Replies: 76
Views: 8,313
Posted By OpenGL guy
That's not what Andrew means. By recommending...

That's not what Andrew means. By recommending that developers *always* use the compatibility profile, it means that applications will *always* have a dependence on the older OpenGL APIs, which is...
Forum: 3D Architectures & Chips 17-Apr-2014, 01:25
Replies: 2,477
Views: 394,641
Posted By OpenGL guy
GM107 has 1/32nd rate, not sure where you are...

GM107 has 1/32nd rate, not sure where you are seeing 1/128.
Forum: 3D Hardware, Software & Output Devices 02-Apr-2014, 16:15
Replies: 448
Views: 61,007
Posted By OpenGL guy
Your photos are still 3:2, are they not?

Your photos are still 3:2, are they not?
Forum: 3D Hardware, Software & Output Devices 02-Apr-2014, 15:21
Replies: 448
Views: 61,007
Posted By OpenGL guy
Photos are still 3:2. You can always view 16:9 at...

Photos are still 3:2. You can always view 16:9 at full resolution on 3:2 with black bars and top and bottom, not so the other way around. For coding, I prefer as much real estate as possible.
Forum: 3D Architectures & Chips 24-Feb-2014, 19:28
Replies: 2,477
Views: 394,641
Posted By OpenGL guy
Actually, Kepler did until a recent driver...

Actually, Kepler did until a recent driver release.
Forum: 3D Architectures & Chips 19-Feb-2014, 15:34
Replies: 2,477
Views: 394,641
Posted By OpenGL guy
The Radeon result is bogus. Upcoming drivers will...

The Radeon result is bogus. Upcoming drivers will "address" this issue.
Forum: 3D Architectures & Chips 17-Feb-2014, 17:07
Replies: 2,477
Views: 394,641
Posted By OpenGL guy
Counting SFUs where: In GFLOPS or reported number...

Counting SFUs where: In GFLOPS or reported number of ALUs?

The answer is neither. There are 64 ALUs per GCN CU. (To be precise, there are 16 ALUs for each of the 4 SIMDs within a CU.) Each ALU is...
Forum: 3D Architectures & Chips 15-Jan-2014, 22:11
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
It's not as simple as that as it requires...

It's not as simple as that as it requires changing the VBIOS behavior at POST when it doesn't know what flavor of OS you will load later.

Yes, write-combine buffers were added to the North Bridge...
Forum: 3D Architectures & Chips 15-Jan-2014, 17:45
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
We have to support our customers and that means...

We have to support our customers and that means people upgrading machines with older OSes.

No, not possible. What would you do if multiple applications were trying to access different 256MB...
Forum: 3D Architectures & Chips 15-Jan-2014, 17:05
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
Thanks to 32-bit OSes, only a portion of the...

Thanks to 32-bit OSes, only a portion of the graphics card's memory is exposed to the CPU. For AMD parts, this is around 256MB of the total video memory. This means that the CPU cannot directly...
Forum: 3D Architectures & Chips 03-Dec-2013, 19:41
Replies: 2,731
Views: 404,351
Posted By OpenGL guy
Inefficient compared to what? FAHBench...

Inefficient compared to what?

FAHBench results in ns/day:
R9-290X: 48.3 explicit, 178.4 implicit
Intel i7-4770K: 4.2 explicit, 4.6 implicit
Forum: 3D Architectures & Chips 25-Oct-2013, 20:19
Replies: 2,731
Views: 404,351
Posted By OpenGL guy
290X has 1:8 DP.

290X has 1:8 DP.
Forum: 3D Architectures & Chips 11-Oct-2013, 19:33
Replies: 2,731
Views: 404,351
Posted By OpenGL guy
Tahiti has two shader engines,each with two...

Tahiti has two shader engines,each with two shader arrays. See http://forum.beyond3d.com/showthread.php?p=1785875#post1785875.
Forum: 3D Architectures & Chips 07-Oct-2013, 19:58
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
Really? This argument fails: - The 8GB of...

Really?

This argument fails:
- The 8GB of slower system memory you would have bought is not free
- The discrete card adds more cost since you need to pair it with a CPU as well
- The discrete...
Forum: 3D Architectures & Chips 07-Oct-2013, 16:54
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
Wow, you guys are really grasping at straws here....

Wow, you guys are really grasping at straws here. APUs are cheaper for the following reasons:
- No reason to buy a discrete graphics card with its own memory
- Shares power with the CPU
- Shares...
Forum: 3D Architectures & Chips 06-Oct-2013, 08:16
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
Of course it does. You don't need 8 GB to run...

Of course it does. You don't need 8 GB to run your machine, for one thing. Secondly, does the discrete card come with a CPU? Didn't think so.
Forum: 3D Architectures & Chips 05-Oct-2013, 20:21
Replies: 1,394
Views: 226,290
Posted By OpenGL guy
You're comparing 8GB of high speed RAM to a GPU...

You're comparing 8GB of high speed RAM to a GPU board with 1GB of memory. Do you expect to run your whole system on 1GB of memory including the part the GPU uses?
Forum: 3D Architectures & Chips 29-Sep-2013, 17:36
Replies: 2,731
Views: 404,351
Posted By OpenGL guy
What was the source for the chart? I ask because...

What was the source for the chart? I ask because the PCIe gen 2 had a lot of command overhead (like 20% of the bandwidth or something) and that was reduced with PCIe gen 3. In fact, I believe a...
Showing results 1 to 25 of 500

 
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