AMD Radeon RX 7700 XT vs NVIDIA GeForce GT 645 OEM

VS

AMD Radeon RX 7700 XT

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 XT and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7700 XT 's Advantages

Released 11 years and 4 months late

Boost Clock2544MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (432.0GB/s vs 91.87GB/s)

3168 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 245W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 XT +3834%

35.17 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

Radeon RX 7700 XT

VS

GeForce GT 645 OEM

Graphics Card

Aug 2023

Release Date

Apr 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1435 MHz

Base Clock

-

2544 MHz

Boost Clock

-

2250 MHz

Memory Clock

957 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

192bit

432.0GB/s

Bandwidth

91.87GB/s

Render Config

54

Compute Units

-

SM Count

6

3456

Shading Units

288

216

TMUs

48

96

ROPs

24

-

54

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

384 KB

48 MB

L3 Cache

-

Theoretical Performance

244.2 GPixel/s

Pixel Rate

9.312 GPixel/s

549.5 GTexel/s

Texture Rate

37.25 GTexel/s

70.34 TFLOPS

FP16 (half)

-

35.17 TFLOPS

FP32 (float)

894.0 GFLOPS

1099 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

245W

TDP

102W

550 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 8-pin

Power Connectors

-

Graphics Processor

Navi 32

GPU Name

GF114

Navi 32 XL (215-180000076)

GPU Variant

-

RDNA 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

28.1 billion

Transistors

1.95 billion

346 mm²

Die Size

332 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

2.1

6.7

Shader Model

5.1

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