AMD Radeon R5 235 OEM vs AMD Radeon R9 255 OEM

VS

AMD Radeon R5 235 OEM

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R5 235 OEM and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 235 OEM 's Advantages

Lower TDP (35W vs 65W)

AMD Radeon R9 255 OEM 's Advantages

Boost Clock930MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (73.60GB/s vs 14.40GB/s)

352 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 235 OEM

0.248 TFLOPS

Radeon R9 255 OEM +283%

0.952 TFLOPS

Radeon R5 235 OEM

VS

Radeon R9 255 OEM

Graphics Card

Dec 2013

Release Date

Dec 2013

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

900 MHz

Memory Clock

1150 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

73.60GB/s

Render Config

2

Compute Units

8

-

160

Shading Units

512

8

TMUs

32

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.100 GPixel/s

Pixel Rate

14.88 GPixel/s

6.200 GTexel/s

Texture Rate

29.76 GTexel/s

-

248.0 GFLOPS

FP32 (float)

952.3 GFLOPS

-

FP64 (double)

59.52 GFLOPS

Board Design

35W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

Caicos

GPU Name

Cape Verde

Caicos XT (215-0804070)

GPU Variant

Cape Verde PRX

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.5 billion

67 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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