AMD Radeon R9 390X vs AMD Radeon HD 7750

VS

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 1024MB VRAM Radeon HD 7750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Released 3 years and 4 months late

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (384.0GB/s vs 72.00GB/s)

2304 additional rendering cores

AMD Radeon HD 7750 's Advantages

Lower TDP (55W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +622%

5.914 TFLOPS

Radeon HD 7750

0.819 TFLOPS

Radeon R9 390X

VS

Radeon HD 7750

Graphics Card

Jun 2015

Release Date

Feb 2012

Pirate Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1500 MHz

Memory Clock

1125 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

44

Compute Units

8

2816

Shading Units

512

176

TMUs

32

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

Theoretical Performance

67.20 GPixel/s

Pixel Rate

12.80 GPixel/s

184.8 GTexel/s

Texture Rate

25.60 GTexel/s

-

FP16 (half)

-

5.914 TFLOPS

FP32 (float)

819.2 GFLOPS

739.2 GFLOPS

FP64 (double)

51.20 GFLOPS

Graphics Processor

Grenada

GPU Name

Cape Verde

Grenada XT (215-0880004)

GPU Variant

Cape Verde PRO

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

Board Design

275W

TDP

55W

600 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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

5.1

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