AMD Radeon RX 455 OEM vs AMD Radeon R7 265X OEM

VS

AMD Radeon RX 455 OEM AMD Radeon R7 265X OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 2GB VRAM Radeon R7 265X OEM 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 1 years and 10 months late

Lower TDP (100W vs 150W)

AMD Radeon R7 265X OEM 's Advantages

Boost Clock925MHz

Larger VRAM bandwidth (179.2GB/s vs 104.0GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM

1.613 TFLOPS

Radeon R7 265X OEM +46%

2.368 TFLOPS

Radeon RX 455 OEM

VS

Radeon R7 265X OEM

Graphics Card

Jun 2016

Release Date

Aug 2014

Arctic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1625 MHz

Memory Clock

1400 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

104.0GB/s

Bandwidth

179.2GB/s

Render Config

-

SM Count

-

12

Compute Units

20

768

Shading Units

1280

48

TMUs

80

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

16.80 GPixel/s

Pixel Rate

29.60 GPixel/s

50.40 GTexel/s

Texture Rate

74.00 GTexel/s

-

FP16 (half)

-

1.613 TFLOPS

FP32 (float)

2.368 TFLOPS

100.8 GFLOPS

FP64 (double)

148.0 GFLOPS

Graphics Processor

Tobago

GPU Name

Curacao

Tobago PRO (215-0875010)

GPU Variant

Curacao PRO (215-0848000)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

2.8 billion

160 mm²

Die Size

212 mm²

Board Design

100W

TDP

150W

300 W

Suggested PSU

450 W

1x 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

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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