AMD Radeon R9 285X vs AMD Radeon R9 290X2

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 4GB VRAM Radeon R9 290X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

Lower TDP (200W vs 580W)

AMD Radeon R9 290X2 's Advantages

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (345.6GB/s vs 264.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 285X

4.104 TFLOPS

Radeon R9 290X2 +37%

5.632 TFLOPS

Radeon R9 285X

VS

Radeon R9 290X2

Graphics Card

Unknown

Release Date

Jun 2014

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

1350 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

512bit

264.0GB/s

Bandwidth

345.6GB/s

Render Config

-

SM Count

-

32

Compute Units

44

2048

Shading Units

2816

128

TMUs

176

32

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

Theoretical Performance

32.06 GPixel/s

Pixel Rate

64.00 GPixel/s

128.3 GTexel/s

Texture Rate

176.0 GTexel/s

-

FP16 (half)

-

4.104 TFLOPS

FP32 (float)

5.632 TFLOPS

-

FP64 (double)

704.0 GFLOPS

Graphics Processor

Tonga

GPU Name

Hawaii

Tonga XT (215-0851313)

GPU Variant

Hawaii XT (215-0852000)

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

6.2 billion

366 mm²

Die Size

438 mm²

Board Design

200W

TDP

580W

550 W

Suggested PSU

950 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

4x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.3

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