AMD Radeon R9 290X vs AMD Radeon R9 270X

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X and 2GB VRAM Radeon R9 270X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 290X 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 179.2GB/s)

1536 additional rendering cores

AMD Radeon R9 270X 's Advantages

Boost Clock1050MHz

Lower TDP (180W vs 290W)

Score

Benchmark

FP32 (float)

Radeon R9 290X +109%

5.632 TFLOPS

Radeon R9 270X

2.688 TFLOPS

3DMark Time Spy

Radeon R9 290X +122%

3934

Radeon R9 270X

1770

Radeon R9 290X

VS

Radeon R9 270X

Graphics Card

Oct 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

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

1250 MHz

Memory Clock

1400 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

320.0GB/s

Bandwidth

179.2GB/s

Render Config

-

SM Count

-

44

Compute Units

20

2816

Shading Units

1280

176

TMUs

80

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

33.60 GPixel/s

176.0 GTexel/s

Texture Rate

84.00 GTexel/s

-

FP16 (half)

-

5.632 TFLOPS

FP32 (float)

2.688 TFLOPS

704.0 GFLOPS

FP64 (double)

168.0 GFLOPS

Graphics Processor

Hawaii

GPU Name

Curacao

Hawaii XT (215-0852000)

GPU Variant

Curacao XT (215-0848004)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

2.8 billion

438 mm²

Die Size

212 mm²

Board Design

290W

TDP

180W

600 W

Suggested PSU

450 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 + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

5.1

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