AMD Radeon HD 6870 X2 vs AMD Radeon RX 6750 XT

VS

AMD Radeon HD 6870 X2

AMD Radeon RX 6750 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 12GB VRAM Radeon RX 6750 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6750 XT 's Advantages

Released 10 years and 8 months late

Boost Clock2600MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (432.0GB/s vs 134.4GB/s)

1440 additional rendering cores

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

Radeon RX 6750 XT +560%

13.31 TFLOPS

Radeon HD 6870 X2

VS

Radeon RX 6750 XT

Graphics Card

Jul 2011

Release Date

Mar 2022

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2150 MHz

-

Boost Clock

2600 MHz

1050 MHz

Memory Clock

2250 MHz

Memory

1024MB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

192bit

134.4GB/s

Bandwidth

432.0GB/s

Render Config

14

Compute Units

40

-

1120

Shading Units

2560

56

TMUs

160

32

ROPs

64

-

RT Cores

40

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

166.4 GPixel/s

50.40 GTexel/s

Texture Rate

416.0 GTexel/s

-

FP16 (half)

26.62 TFLOPS

2.016 TFLOPS

FP32 (float)

13.31 TFLOPS

-

FP64 (double)

832.0 GFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

Navi 22

Barts XT (215-0798000)

GPU Variant

Navi 22 KXT (215-127000144)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

1.7 billion

Transistors

17.2 billion

255 mm²

Die Size

335 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.5

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