AMD Radeon HD 6450 OEM vs AMD Radeon RX 7900 GRE

VS

AMD Radeon HD 6450 OEM

AMD Radeon RX 7900 GRE

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

Lower TDP (18W vs 260W)

AMD Radeon RX 7900 GRE 's Advantages

Released 12 years and 5 months late

Boost Clock2245MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (576.0GB/s vs 8.528GB/s)

4960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon RX 7900 GRE +22890%

45.98 TFLOPS

Radeon HD 6450 OEM

VS

Radeon RX 7900 GRE

Graphics Card

Feb 2011

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

533 MHz

Memory Clock

2250 MHz

Memory

512MB

Memory Size

16GB

GDDR3

Memory Type

GDDR6

64bit

Memory Bus

256bit

8.528GB/s

Bandwidth

576.0GB/s

Render Config

2

Compute Units

80

-

160

Shading Units

5120

8

TMUs

320

4

ROPs

160

-

RT Cores

80

8 KB (per CU)

L1 Cache

256 KB per Array

128 KB

L2 Cache

6 MB

-

L3 Cache

64 MB

Theoretical Performance

2.500 GPixel/s

Pixel Rate

359.2 GPixel/s

5.000 GTexel/s

Texture Rate

718.4 GTexel/s

-

FP16 (half)

91.96 TFLOPS

200.0 GFLOPS

FP32 (float)

45.98 TFLOPS

-

FP64 (double)

1437 GFLOPS

Board Design

18W

TDP

260W

200 W

Suggested PSU

600 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

2x 8-pin

Graphics Processor

Caicos

GPU Name

Navi 31

Junbonator

GPU Variant

Navi 31 XL (215-145000206)

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

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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