AMD Radeon RX 455 OEM vs AMD Radeon R7 250X

VS

AMD Radeon RX 455 OEM AMD Radeon R7 250X

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 1024MB VRAM Radeon R7 250X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 455 OEM 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (104.0GB/s vs 72.00GB/s)

128 additional rendering cores

AMD Radeon R7 250X 's Advantages

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM +32%

1.613 TFLOPS

Radeon R7 250X

1.216 TFLOPS

Radeon RX 455 OEM

VS

Radeon R7 250X

Graphics Card

Jun 2016

Release Date

Feb 2014

Arctic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1625 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

104.0GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

12

Compute Units

10

768

Shading Units

640

48

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

16.80 GPixel/s

Pixel Rate

15.20 GPixel/s

50.40 GTexel/s

Texture Rate

38.00 GTexel/s

-

FP16 (half)

-

1.613 TFLOPS

FP32 (float)

1216 GFLOPS

100.8 GFLOPS

FP64 (double)

76.00 GFLOPS

Graphics Processor

Tobago

GPU Name

Cape Verde

Tobago PRO (215-0875010)

GPU Variant

Cape Verde XT

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

1.5 billion

160 mm²

Die Size

123 mm²

Board Design

100W

TDP

80W

300 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

1x 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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