AMD Radeon HD 6450 OEM vs AMD Radeon RX 7990 XTX

VS

AMD Radeon HD 6450 OEM AMD Radeon RX 7990 XTX

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM 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 6450 OEM 's Advantages

Lower TDP (18W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock3599MHz

Larger VRAM bandwidth (1152GB/s vs 8.528GB/s)

5984 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon RX 7990 XTX +44125%

88.45 TFLOPS

Radeon HD 6450 OEM

VS

Radeon RX 7990 XTX

Graphics Card

Feb 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

533 MHz

Memory Clock

3000 MHz

Memory

512MB

Memory Size

24GB

GDDR3

Memory Type

GDDR6

64bit

Memory Bus

384bit

8.528GB/s

Bandwidth

1152GB/s

Render Config

-

SM Count

-

2

Compute Units

96

160

Shading Units

6144

8

TMUs

384

4

ROPs

192

-

Tensor Cores

-

RT Cores

96

8 KB (per CU)

L1 Cache

256 KB per Array

128 KB

L2 Cache

6 MB

Theoretical Performance

2.500 GPixel/s

Pixel Rate

691.0 GPixel/s

5.000 GTexel/s

Texture Rate

1382 GTexel/s

-

FP16 (half)

176.9 TFLOPS

200.0 GFLOPS

FP32 (float)

88.45 TFLOPS

-

FP64 (double)

2.764 TFLOPS

Graphics Processor

Caicos

GPU Name

Navi 31

Junbonator

GPU Variant

Navi 31 XTX+

TeraScale 2

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

0.37 billion

Transistors

57.7 billion

67 mm²

Die Size

529 mm²

Board Design

18W

TDP

405W

200 W

Suggested PSU

800 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

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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