Home GPU Comparison AMD Radeon R9 280 vs AMD Radeon R9 380X

AMD Radeon R9 280 vs AMD Radeon R9 380X

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 4GB VRAM Radeon R9 380X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280 's Advantages
Boost Clock933MHz
Larger VRAM bandwidth (240.0GB/s vs 182.4GB/s)
AMD Radeon R9 380X 's Advantages
Released 1 years and 8 months late
More VRAM (4GB vs 3GB)
256 additional rendering cores
Lower TDP (190W vs 200W)

Score

Benchmark

FP32 (float)
Radeon R9 280
3.344 TFLOPS
Radeon R9 380X +18%
3.973 TFLOPS
3DMark Time Spy
Radeon R9 280
2009
Radeon R9 380X +51%
3050
VS

Graphics Card

Mar 2014
Release Date
Nov 2015
Volcanic Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

827 MHz
Base Clock
-
933 MHz
Boost Clock
-
1250 MHz
Memory Clock
1425 MHz

Memory

3GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
240.0GB/s
Bandwidth
182.4GB/s

Render Config

28
Compute Units
32
-
-
-
1792
Shading Units
2048
112
TMUs
128
32
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

29.86 GPixel/s
Pixel Rate
31.04 GPixel/s
104.5 GTexel/s
Texture Rate
124.2 GTexel/s
-
FP16 (half)
3.973 TFLOPS
3.344 TFLOPS
FP32 (float)
3.973 TFLOPS
836.0 GFLOPS
FP64 (double)
248.3 GFLOPS

Board Design

200W
TDP
190W
550 W
Suggested PSU
450 W
1x DVI 2x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin

Graphics Processor

Tahiti
GPU Name
Antigua
Tahiti PRO3 (215-0821330)
GPU Variant
Antigua XT (215-0877016)
GCN 1.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
5 billion
352 mm²
Die Size
366 mm²

Graphics Features

12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.0
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
6.3

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