AMD Radeon RX 7800 vs AMD Radeon HD 6850 X2

VS

AMD Radeon RX 7800

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Released 11 years and 4 months late

Boost Clock2800MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 134.4GB/s)

2880 additional rendering cores

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 +2329%

37.32 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon RX 7800

VS

Radeon HD 6850 X2

Graphics Card

Jan 2023

Release Date

Sep 2011

Navi III

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1800 MHz

Base Clock

-

2800 MHz

Boost Clock

-

2250 MHz

Memory Clock

1050 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

134.4GB/s

Render Config

60

Compute Units

12

-

3840

Shading Units

960

240

TMUs

48

128

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

64 MB

L3 Cache

-

Theoretical Performance

358.4 GPixel/s

Pixel Rate

25.60 GPixel/s

672.0 GTexel/s

Texture Rate

38.40 GTexel/s

86.02 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

1.536 TFLOPS

1344 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

254W

700 W

Suggested PSU

600 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

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

2x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Navi 32

GPU Name

Barts

Navi 32 XT

GPU Variant

Barts PRO (215-0798006)

RDNA 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

Unknown

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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