Home GPU Comparison AMD Radeon R9 270 vs AMD Radeon R9 280X

AMD Radeon R9 270 vs AMD Radeon R9 280X

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 and 3GB VRAM Radeon R9 280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 's Advantages
Lower TDP (150W vs 250W)
AMD Radeon R9 280X 's Advantages
Boost Clock has increased by 8% (1000MHz vs 925MHz)
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 179.2GB/s)
768 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R9 270
2.368 TFLOPS
Radeon R9 280X +72%
4.096 TFLOPS
3DMark Time Spy
Radeon R9 270
1603
Radeon R9 280X +45%
2339
VS

Graphics Card

Nov 2013
Release Date
Oct 2013
Volcanic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

900 MHz
Base Clock
850 MHz
925 MHz
Boost Clock
1000 MHz
1400 MHz
Memory Clock
1500 MHz

Memory

2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
179.2GB/s
Bandwidth
288.0GB/s

Render Config

-
SM Count
-
20
Compute Units
32
1280
Shading Units
2048
80
TMUs
128
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB

Theoretical Performance

29.60 GPixel/s
Pixel Rate
32.00 GPixel/s
74.00 GTexel/s
Texture Rate
128.0 GTexel/s
-
FP16 (half)
-
2.368 TFLOPS
FP32 (float)
4.096 TFLOPS
148.0 GFLOPS
FP64 (double)
1024 GFLOPS

Graphics Processor

Curacao
GPU Name
Tahiti
Curacao PRO (215-0848000)
GPU Variant
Tahiti XTL (215-0821065)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
4.313 billion
212 mm²
Die Size
352 mm²

Board Design

150W
TDP
250W
450 W
Suggested PSU
600 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
5.1

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