AMD Radeon RX 7700 vs AMD Radeon HD 6870

VS

AMD Radeon RX 7700

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7700 's Advantages

Boost Clock2600MHz

More VRAM (12GB vs 1024GB)

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

1952 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 200W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 +1484%

31.95 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon RX 7700

VS

Radeon HD 6870

Graphics Card

Unknown

Release Date

Oct 2010

Navi III

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1900 MHz

Base Clock

-

2600 MHz

Boost Clock

-

2250 MHz

Memory Clock

1050 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

256bit

432.0GB/s

Bandwidth

134.4GB/s

Render Config

48

Compute Units

14

-

3072

Shading Units

1120

192

TMUs

56

96

ROPs

32

-

48

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

64 MB

L3 Cache

-

Theoretical Performance

249.6 GPixel/s

Pixel Rate

28.80 GPixel/s

499.2 GTexel/s

Texture Rate

50.40 GTexel/s

63.90 TFLOPS

FP16 (half)

-

31.95 TFLOPS

FP32 (float)

2.016 TFLOPS

998.4 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

151W

550 W

Suggested PSU

450 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 32

GPU Name

Barts

Navi 32

GPU Variant

Barts XT (215-0798000)

RDNA 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

28.1 billion

Transistors

1.7 billion

346 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

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