AMD Radeon RX 6750 GRE 12 GB vs ATI Radeon HD 4855

VS

AMD Radeon RX 6750 GRE 12 GB

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6750 GRE 12 GB and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6750 GRE 12 GB 's Advantages

Released 13 years and 9 months late

Boost Clock2581MHz

More VRAM (12GB vs 512GB)

Larger VRAM bandwidth (432.0GB/s vs 115.2GB/s)

1920 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6750 GRE 12 GB +1694%

13.21 TFLOPS

Radeon HD 4855

0.736 TFLOPS

Radeon RX 6750 GRE 12 GB

VS

Radeon HD 4855

Graphics Card

Oct 2023

Release Date

Jan 2010

Navi II

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2321 MHz

Base Clock

-

2581 MHz

Boost Clock

-

2250 MHz

Memory Clock

900 MHz

Memory

12GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

256bit

432.0GB/s

Bandwidth

115.2GB/s

Render Config

40

Compute Units

8

-

2560

Shading Units

640

160

TMUs

32

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

165.2 GPixel/s

Pixel Rate

9.200 GPixel/s

413.0 GTexel/s

Texture Rate

18.40 GTexel/s

26.43 TFLOPS

FP16 (half)

-

13.21 TFLOPS

FP32 (float)

736.0 GFLOPS

825.9 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

250W

TDP

110W

600 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 22

GPU Name

RV770

Navi 22 KXT (215-127000144)

GPU Variant

RV770 PRO (215-0669065)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

17.2 billion

Transistors

0.956 billion

335 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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