AMD Radeon RX 6900 XTX vs AMD Radeon R7 450 OEM

VS

AMD Radeon RX 6900 XTX AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 2GB VRAM Radeon R7 450 OEM 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 72.00GB/s)

4608 additional rendering cores

AMD Radeon R7 450 OEM 's Advantages

Lower TDP (65W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +2532%

24.93 TFLOPS

Radeon R7 450 OEM

0.947 TFLOPS

Radeon RX 6900 XTX

VS

Radeon R7 450 OEM

Graphics Card

Unknown

Release Date

Jun 2016

Navi II

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

1125 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

80

Compute Units

8

5120

Shading Units

512

320

TMUs

32

128

ROPs

16

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

14.80 GPixel/s

779.2 GTexel/s

Texture Rate

29.60 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

947.2 GFLOPS

1.558 TFLOPS

FP64 (double)

59.20 GFLOPS

Graphics Processor

Navi 21

GPU Name

Cape Verde

Navi 21 XTXH (215-121000247)

GPU Variant

Cape Verde PRO2

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

1.5 billion

520 mm²

Die Size

123 mm²

Board Design

330W

TDP

65W

700 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

-

CUDA

-

6.5

Shader Model

6.5 (5.1)

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