AMD Radeon RX 7700 XT vs NVIDIA GeForce GT 640

VS

AMD Radeon RX 7700 XT

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 XT and 2GB VRAM GeForce GT 640 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 2 months late

Boost Clock2544MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (432.0GB/s vs 28.51GB/s)

3072 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 245W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 XT +4975%

35.17 TFLOPS

GeForce GT 640

0.693 TFLOPS

Blender

Radeon RX 7700 XT +6718%

2182

GeForce GT 640

32

Radeon RX 7700 XT

VS

GeForce GT 640

Graphics Card

Aug 2023

Release Date

Jun 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1435 MHz

Base Clock

-

2544 MHz

Boost Clock

-

2250 MHz

Memory Clock

891 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

28.51GB/s

Render Config

54

Compute Units

-

3456

Shading Units

384

216

TMUs

32

96

ROPs

16

-

54

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

48 MB

L3 Cache

-

Theoretical Performance

244.2 GPixel/s

Pixel Rate

7.216 GPixel/s

549.5 GTexel/s

Texture Rate

28.86 GTexel/s

70.34 TFLOPS

FP16 (half)

-

35.17 TFLOPS

FP32 (float)

692.7 GFLOPS

1099 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

245W

TDP

65W

550 W

Suggested PSU

250 W

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

Outputs

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

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 32

GPU Name

GK107

Navi 32 XL (215-180000076)

GPU Variant

GK107-300-A2

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

1.27 billion

346 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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