AMD Radeon RX 6900 XTX vs AMD Radeon HD 6950

VS

AMD Radeon RX 6900 XTX AMD Radeon HD 6950

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 2GB VRAM Radeon HD 6950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 160.0GB/s)

3712 additional rendering cores

AMD Radeon HD 6950 's Advantages

Lower TDP (200W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +1006%

24.93 TFLOPS

Radeon HD 6950

2.253 TFLOPS

Radeon RX 6900 XTX

VS

Radeon HD 6950

Graphics Card

Unknown

Release Date

Dec 2010

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

-

80

Compute Units

22

5120

Shading Units

1408

320

TMUs

88

128

ROPs

32

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

25.60 GPixel/s

779.2 GTexel/s

Texture Rate

70.40 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

2.253 TFLOPS

1.558 TFLOPS

FP64 (double)

563.2 GFLOPS

Graphics Processor

Navi 21

GPU Name

Cayman

Navi 21 XTXH (215-121000247)

GPU Variant

Cayman PRO (215-0807019)

RDNA 2.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

2.64 billion

520 mm²

Die Size

389 mm²

Board Design

330W

TDP

200W

700 W

Suggested PSU

550 W

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

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

5.0

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