AMD Radeon R9 270X vs AMD Radeon R9 390

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 8GB VRAM Radeon R9 390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Boost Clock1050MHz

Lower TDP (180W vs 275W)

AMD Radeon R9 390 's Advantages

Released 1 years and 8 months late

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 179.2GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 270X

2.688 TFLOPS

Radeon R9 390 +90%

5.12 TFLOPS

3DMark Time Spy

Radeon R9 270X

1770

Radeon R9 390 +123%

3955

Radeon R9 270X

VS

Radeon R9 390

Graphics Card

Oct 2013

Release Date

Jun 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

512bit

179.2GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

20

Compute Units

40

1280

Shading Units

2560

80

TMUs

160

32

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

Theoretical Performance

33.60 GPixel/s

Pixel Rate

64.00 GPixel/s

84.00 GTexel/s

Texture Rate

160.0 GTexel/s

-

FP16 (half)

-

2.688 TFLOPS

FP32 (float)

5.120 TFLOPS

168.0 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Curacao

GPU Name

Grenada

Curacao XT (215-0848004)

GPU Variant

Grenada PRO (215-0880030)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

6.2 billion

212 mm²

Die Size

438 mm²

Board Design

180W

TDP

275W

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.3

Related GPU Comparisons

1

AMD Radeon R9 270X vs NVIDIA GeForce GTX 1050

2

AMD Radeon HD 8870 OEM vs AMD Radeon R9 270X

3

NVIDIA GeForce GT 1030 vs AMD Radeon R9 270X

4

AMD Radeon R9 270X vs NVIDIA GeForce GTX 1060 6 GB Rev. 2

5

NVIDIA GeForce RTX 4090D vs AMD Radeon R9 270X

6

NVIDIA GeForce GTX 560 Ti vs AMD Radeon R9 270X

7

AMD Radeon R5 430 OEM vs AMD Radeon R9 270X

8

AMD Radeon R9 270X vs NVIDIA GeForce GTX 460 X2

9

AMD Radeon R9 270X vs AMD Radeon R7 265X OEM

10

AMD Radeon R9 270X vs NVIDIA GeForce 210 Rev. 2