AMD Radeon HD 6850 vs AMD Radeon RX 7900 GRE

VS

AMD Radeon HD 6850

AMD Radeon RX 7900 GRE

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 16GB VRAM Radeon RX 7900 GRE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 260W)

AMD Radeon RX 7900 GRE 's Advantages

Released 12 years and 9 months late

Boost Clock2245MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (576.0GB/s vs 128.0GB/s)

4160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850

1.488 TFLOPS

Radeon RX 7900 GRE +2990%

45.98 TFLOPS

Radeon HD 6850

VS

Radeon RX 7900 GRE

Graphics Card

Oct 2010

Release Date

Jul 2023

Northern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1287 MHz

-

Boost Clock

2245 MHz

1000 MHz

Memory Clock

2250 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

576.0GB/s

Render Config

12

Compute Units

80

-

960

Shading Units

5120

48

TMUs

320

32

ROPs

160

-

RT Cores

80

8 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

-

L3 Cache

64 MB

Theoretical Performance

24.80 GPixel/s

Pixel Rate

359.2 GPixel/s

37.20 GTexel/s

Texture Rate

718.4 GTexel/s

-

FP16 (half)

91.96 TFLOPS

1488 GFLOPS

FP32 (float)

45.98 TFLOPS

-

FP64 (double)

1437 GFLOPS

Board Design

127W

TDP

260W

300 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Barts

GPU Name

Navi 31

Barts PRO (215-0798006)

GPU Variant

Navi 31 XL (215-145000206)

TeraScale 2

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

1.7 billion

Transistors

57.7 billion

255 mm²

Die Size

529 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.2

N/A

Vulkan

1.3

-

5.0

Shader Model

6.7

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