ATI Radeon HD 3750 vs AMD Radeon R9 390 X2

VS

ATI Radeon HD 3750

AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3750 and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3750 's Advantages

Lower TDP (65W vs 580W)

AMD Radeon R9 390 X2 's Advantages

Released 7 years late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (345.6GB/s vs 22.18GB/s)

2440 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3750

0.191 TFLOPS

Radeon R9 390 X2 +2580%

5.12 TFLOPS

Radeon HD 3750

VS

Radeon R9 390 X2

Graphics Card

Sep 2008

Release Date

Sep 2015

Radeon R600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

693 MHz

Memory Clock

1350 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

512bit

22.18GB/s

Bandwidth

345.6GB/s

Render Config

3

Compute Units

40

-

120

Shading Units

2560

8

TMUs

160

4

ROPs

64

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

3.184 GPixel/s

Pixel Rate

64.00 GPixel/s

6.368 GTexel/s

Texture Rate

160.0 GTexel/s

-

191.0 GFLOPS

FP32 (float)

5.120 TFLOPS

-

FP64 (double)

640.0 GFLOPS

Board Design

65W

TDP

580W

250 W

Suggested PSU

950 W

2x DVI 1x S-Video

Outputs

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

None

Power Connectors

4x 8-pin

Graphics Processor

RV635

GPU Name

Grenada

RV635 PRO (215-0682008)

GPU Variant

Grenada PRO (215-0880030)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.378 billion

Transistors

6.2 billion

135 mm²

Die Size

438 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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