AMD Radeon R7 240 OEM vs AMD Radeon R9 255 OEM

VS

AMD Radeon R7 240 OEM

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 240 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 R7 240 OEM 's Advantages

Lower TDP (50W vs 65W)

AMD Radeon R9 255 OEM 's Advantages

Boost Clock has increased by 19% (930MHz vs 780MHz)

Larger VRAM bandwidth (73.60GB/s vs 28.80GB/s)

192 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 240 OEM

0.499 TFLOPS

Radeon R9 255 OEM +90%

0.952 TFLOPS

Radeon R7 240 OEM

VS

Radeon R9 255 OEM

Graphics Card

Nov 2013

Release Date

Dec 2013

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

730 MHz

Base Clock

900 MHz

780 MHz

Boost Clock

930 MHz

900 MHz

Memory Clock

1150 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

73.60GB/s

Render Config

5

Compute Units

8

-

320

Shading Units

512

20

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

14.88 GPixel/s

15.60 GTexel/s

Texture Rate

29.76 GTexel/s

-

499.2 GFLOPS

FP32 (float)

952.3 GFLOPS

31.20 GFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

Oland

GPU Name

Cape Verde

-

GPU Variant

Cape Verde PRX

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.5 billion

77 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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