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| | Radeon R9 280X vs 280 |
Released October, 2013
Generic Radeon R9 280X
- 850 MHz
- 3 GB GDDR5
by techPowerUp!One memory chip remains uncooled, but its position is covered by the airflow the cooling assembly produces.
VS
Released March, 2014
AMD Radeon R9 280
- 827 MHz
- 3 GB GDDR5
by hassan-mujtaba (Oct, 2013)The GPU core clock is maintained at 1000 MHz and the boost clock is configured at 1050 MHz.
Cast your vote Do you agree or disagree with GPUBoss?
VS
Differences What are the advantages of each
| |||||||
| Higher effective memory clock speed | 6,000 MHz | vs | 5,000 MHz | 20% higher effective memory clock speed | |||
|---|---|---|---|---|---|---|---|
| Slightly better floating-point performance | 3,482 GFLOPS | vs | 2,964 GFLOPS | More than 15% better floating-point performance | |||
| Higher turbo clock speed | 1,000 MHz | vs | 933 MHz | More than 5% higher turbo clock speed | |||
| Higher memory clock speed | 1,500 MHz | vs | 1,250 MHz | 20% higher memory clock speed | |||
| |||||||
| Lower TDP | 200W | vs | 250W | 20% lower TDP | |||
Features Key features of the Radeon R9 280X vs 280
pixel rate Number of pixels a graphics card can render to the screen every second
Radeon R9 280X
27.2 GPixel/s
Radeon R9 280
26.5 GPixel/s
Radeon R9 280 | by Shawn-Baker (Oct, 2014)Unfortunately, you can see we still fall short of that 60 FPS average; although, the 58 FPS average is indeed impressive.
floating point performance How fast the gpu can crunch numbers
Radeon R9 280X
3,482 GFLOPS
Radeon R9 280
2,964 GFLOPS
Radeon R9 280 | by hassan-mujtaba (Sep, 2014)Another feature is the the updated instruction set which introduces 16-bit floating point and integer instructions that help in low power compute (GPU) and media processing.
shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading
Radeon R9 280X
2,048
Radeon R9 280
1,792
Radeon R9 280 | by Slobodan-Simic (Aug, 2014)Despite these few leaked pictures, we still do not have precise specifications for the upcoming R9 285 graphics card as it is still not clear if it will have 1792 or 2048 Stream Processors.
texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes
Radeon R9 280X
128
Radeon R9 280
112
Radeon R9 280 | by hassan-mujtaba (Oct, 2013)The Radeon R9 280X is based on the 28nm Tahiti die featuring 2048 Stream processors, 128 Texture mapping units and 32 Raster Operators.
render output processors GPU commponents responsible for transform pixels as they flow between memory buffers
Radeon R9 280 | by hassan-mujtaba (Oct, 2013)ASUS Radeon R9 280X DirectCU II TOP is based on the Tahiti XT die, featuring 2048 cores, 128 TMUs and 32 ROPs.
compute units Discrete cores within the GPU
Radeon R9 280 | by hassan-mujtaba (Sep, 2014)Getting right in to the technical aspects of the card, the Radeon R9 285 will feature 28 Compute Units which mean we are looking at a total of 1792 stream processors, 112 texture mapping units and 32 raster operation units.
Specifications Full list of technical specs
gpu | Radeon R9 280X | vs | 280 |
|---|---|---|---|
| GPU brand | AMD | AMD | |
| GPU name | Tahiti | Tahiti | |
| Market | Desktop | Desktop | |
| Clock speed | 850 MHz | 827 MHz | |
| Turbo clock speed | 1,000 MHz | 933 MHz | |
| Is dual GPU | No | No | |
| Reference card | AMD Radeon R9 280X 850 MHz 3 GB | None | |
raw performance | |||
| Shading units | 2,048 | 1,792 | |
| Texture mapping units | 128 | 112 | |
| Render output processors | 32 | 32 | |
| Compute units | 32 | 28 | |
| Pixel rate | 27.2 GPixel/s | 26.5 GPixel/s | |
| Floating-point performance | 3,482 GFLOPS | 2,964 GFLOPS | |
memory | Radeon R9 280X | vs | 280 |
|---|---|---|---|
| Memory clock speed | 1,500 MHz | 1,250 MHz | |
| Effective memory clock speed | 6,000 MHz | 5,000 MHz | |
| Memory bus | 384 bit | 384 bit | |
| Memory | 3,072 MB | 3,072 MB | |
| Memory type | GDDR5 | GDDR5 | |
noise and power | |||
| TDP | 250W | 200W | |
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ho duuuuuuuude (07:53 AM, September 9, 2014)
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