NVIDIA GeForce RTX 5070 vs AMD Radeon HD 6450

VS

NVIDIA GeForce RTX 5070

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 5070 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5070 's Advantages

Released 13 years and 9 months late

Boost Clock2520MHz

More VRAM (12GB vs 512GB)

Larger VRAM bandwidth (532.6GB/s vs 25.60GB/s)

6240 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 220W)

Score

Benchmark

FP32 (float)

GeForce RTX 5070 +16030%

32.26 TFLOPS

Radeon HD 6450

0.2 TFLOPS

GeForce RTX 5070

VS

Radeon HD 6450

Graphics Card

Jan 2025

Release Date

Apr 2011

GeForce 50

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1750 MHz

Memory Clock

800 MHz

Memory

12GB

Memory Size

512MB

GDDR7

Memory Type

GDDR5

192bit

Memory Bus

64bit

532.6GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

50

SM Count

-

6400

Shading Units

160

200

TMUs

8

64

ROPs

4

200

Tensor Cores

-

50

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

40 MB

L2 Cache

128 KB

-

Theoretical Performance

161.3 GPixel/s

Pixel Rate

2.500 GPixel/s

504.0 GTexel/s

Texture Rate

5.000 GTexel/s

32.26 TFLOPS

FP16 (half)

-

32.26 TFLOPS

FP32 (float)

200.0 GFLOPS

504.0 GFLOPS

FP64 (double)

-

Board Design

220W

TDP

18W

550 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 16-pin

Power Connectors

None

Graphics Processor

GB205

GPU Name

Caicos

GB205

GPU Variant

Caicos PRO

Blackwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

Unknown

Transistors

0.37 billion

Unknown

Die Size

67 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

10.1

CUDA

-

6.8

Shader Model

5.0

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