AMD Radeon R9 390 X2 vs AMD Radeon R7 350 640SP

VS

AMD Radeon R9 390 X2

AMD Radeon R7 350 640SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 2GB VRAM Radeon R7 350 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 72.00GB/s)

1920 additional rendering cores

AMD Radeon R7 350 640SP 's Advantages

Released 3 years and 4 months late

Lower TDP (55W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +332%

5.12 TFLOPS

Radeon R7 350 640SP

1.184 TFLOPS

Radeon R9 390 X2

VS

Radeon R7 350 640SP

Graphics Card

Sep 2015

Release Date

Jan 2019

Pirate Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

1125 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

72.00GB/s

Render Config

40

Compute Units

10

-

2560

Shading Units

640

160

TMUs

40

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

14.80 GPixel/s

160.0 GTexel/s

Texture Rate

37.00 GTexel/s

-

5.120 TFLOPS

FP32 (float)

1184 GFLOPS

640.0 GFLOPS

FP64 (double)

74.00 GFLOPS

Board Design

580W

TDP

55W

950 W

Suggested PSU

250 W

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

Outputs

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

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

Cape Verde

Grenada PRO (215-0880030)

GPU Variant

Cape Verde XT

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

1.5 billion

438 mm²

Die Size

123 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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