AMD Radeon RX 6800 vs AMD Radeon HD 7850

VS

AMD Radeon RX 6800

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 's Advantages

Released 8 years and 7 months late

Boost Clock2105MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 153.6GB/s)

2816 additional rendering cores

AMD Radeon HD 7850 's Advantages

Lower TDP (130W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +818%

16.17 TFLOPS

Radeon HD 7850

1.761 TFLOPS

3DMark Time Spy

Radeon RX 6800 +1137%

16233

Radeon HD 7850

1312

Radeon RX 6800

VS

Radeon HD 7850

Graphics Card

Oct 2020

Release Date

Mar 2012

Navi II

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1700 MHz

Base Clock

-

2105 MHz

Boost Clock

-

2000 MHz

Memory Clock

1200 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

153.6GB/s

Render Config

60

Compute Units

16

-

3840

Shading Units

1024

240

TMUs

64

96

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

128 MB

L3 Cache

-

Theoretical Performance

202.1 GPixel/s

Pixel Rate

27.52 GPixel/s

505.2 GTexel/s

Texture Rate

55.04 GTexel/s

32.33 TFLOPS

FP16 (half)

-

16.17 TFLOPS

FP32 (float)

1.761 TFLOPS

1010 GFLOPS

FP64 (double)

110.1 GFLOPS

Board Design

250W

TDP

130W

600 W

Suggested PSU

300 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 21

GPU Name

Pitcairn

Navi 21 XL (215-121000187)

GPU Variant

Pitcairn PRO (215-0828062)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

2.8 billion

520 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.5

Shader Model

5.1

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