AMD Radeon RX 6750 XT vs NVIDIA GeForce GTX 645 OEM

VS

AMD Radeon RX 6750 XT

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6750 XT and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6750 XT 's Advantages

Released 8 years and 11 months late

Boost Clock2600MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (432.0GB/s vs 64.00GB/s)

1984 additional rendering cores

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6750 XT +1302%

13.31 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon RX 6750 XT

VS

GeForce GTX 645 OEM

Graphics Card

Mar 2022

Release Date

Apr 2013

Navi II

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2150 MHz

Base Clock

-

2600 MHz

Boost Clock

-

2250 MHz

Memory Clock

1000 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

64.00GB/s

Render Config

40

Compute Units

-

2560

Shading Units

576

160

TMUs

48

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

166.4 GPixel/s

Pixel Rate

9.888 GPixel/s

416.0 GTexel/s

Texture Rate

39.55 GTexel/s

26.62 TFLOPS

FP16 (half)

-

13.31 TFLOPS

FP32 (float)

949.2 GFLOPS

832.0 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

250W

TDP

65W

600 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

GK106

Navi 22 KXT (215-127000144)

GPU Variant

GK106-200-A1

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

17.2 billion

Transistors

2.54 billion

335 mm²

Die Size

221 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.5

Shader Model

5.1

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