AMD Radeon R9 390 X2 vs AMD Radeon R7 240 OEM

VS

AMD Radeon R9 390 X2

AMD Radeon R7 240 OEM

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 2GB VRAM Radeon R7 240 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 1 years and 10 months late

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 28.80GB/s)

2240 additional rendering cores

AMD Radeon R7 240 OEM 's Advantages

Boost Clock780MHz

Lower TDP (50W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +926%

5.12 TFLOPS

Radeon R7 240 OEM

0.499 TFLOPS

Radeon R9 390 X2

VS

Radeon R7 240 OEM

Graphics Card

Sep 2015

Release Date

Nov 2013

Pirate Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

780 MHz

1350 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

28.80GB/s

Render Config

40

Compute Units

5

-

2560

Shading Units

320

160

TMUs

20

64

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

6.240 GPixel/s

160.0 GTexel/s

Texture Rate

15.60 GTexel/s

-

5.120 TFLOPS

FP32 (float)

499.2 GFLOPS

640.0 GFLOPS

FP64 (double)

31.20 GFLOPS

Board Design

580W

TDP

50W

950 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

Oland

Grenada PRO (215-0880030)

GPU Variant

-

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

0.95 billion

438 mm²

Die Size

77 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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