AMD Radeon HD 6850 X2 vs AMD Radeon RX 7990 XTX

VS

AMD Radeon HD 6850 X2 AMD Radeon RX 7990 XTX

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 24GB VRAM Radeon RX 7990 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock3599MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1152GB/s vs 134.4GB/s)

5184 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

Radeon RX 7990 XTX +5658%

88.45 TFLOPS

Radeon HD 6850 X2

VS

Radeon RX 7990 XTX

Graphics Card

Sep 2011

Release Date

Unknown

Northern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2500 MHz

-

Boost Clock

3599 MHz

1050 MHz

Memory Clock

3000 MHz

Memory

2GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

1152GB/s

Render Config

-

SM Count

-

12

Compute Units

96

960

Shading Units

6144

48

TMUs

384

32

ROPs

192

-

Tensor Cores

-

RT Cores

96

8 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

691.0 GPixel/s

38.40 GTexel/s

Texture Rate

1382 GTexel/s

-

FP16 (half)

176.9 TFLOPS

1.536 TFLOPS

FP32 (float)

88.45 TFLOPS

-

FP64 (double)

2.764 TFLOPS

Graphics Processor

Barts

GPU Name

Navi 31

Barts PRO (215-0798006)

GPU Variant

Navi 31 XTX+

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

Board Design

254W

TDP

405W

600 W

Suggested PSU

800 W

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

Outputs

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

2x 8-pin

Power Connectors

3x 8-pin

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

-

CUDA

-

5.0

Shader Model

6.7

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