NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 7950 XTX

VS

NVIDIA GeForce GT 645 OEM

AMD Radeon RX 7950 XTX

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 24GB VRAM Radeon RX 7950 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 355W)

AMD Radeon RX 7950 XTX 's Advantages

Boost Clock3300MHz

More VRAM (24GB vs 1024GB)

Larger VRAM bandwidth (960.0GB/s vs 91.87GB/s)

5856 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Radeon RX 7950 XTX +8971%

81.1 TFLOPS

GeForce GT 645 OEM

VS

Radeon RX 7950 XTX

Graphics Card

Apr 2012

Release Date

Unknown

GeForce 600

Generation

Navi III

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2200 MHz

-

Boost Clock

3300 MHz

957 MHz

Memory Clock

2500 MHz

Memory

1024MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

384bit

91.87GB/s

Bandwidth

960.0GB/s

Render Config

-

Compute Units

96

6

SM Count

-

288

Shading Units

6144

48

TMUs

384

24

ROPs

192

-

RT Cores

96

64 KB (per SM)

L1 Cache

256 KB per Array

384 KB

L2 Cache

6 MB

-

L3 Cache

96 MB

Theoretical Performance

9.312 GPixel/s

Pixel Rate

633.6 GPixel/s

37.25 GTexel/s

Texture Rate

1267 GTexel/s

-

FP16 (half)

162.2 TFLOPS

894.0 GFLOPS

FP32 (float)

81.10 TFLOPS

74.50 GFLOPS

FP64 (double)

2.534 TFLOPS

Board Design

102W

TDP

355W

300 W

Suggested PSU

750 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

-

Power Connectors

2x 8-pin

Graphics Processor

GF114

GPU Name

Navi 31

-

GPU Variant

Navi 31 XTX+

Fermi 2.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

1.95 billion

Transistors

57.7 billion

332 mm²

Die Size

529 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.1

OpenCL

2.2

N/A

Vulkan

1.3

2.1

CUDA

-

5.1

Shader Model

6.7

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