AMD Radeon RX 7700 XT vs NVIDIA GeForce GT 640 OEM Rebrand

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AMD Radeon RX 7700 XT NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 XT and 1536MB VRAM GeForce GT 640 OEM Rebrand 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 1GB)

Larger VRAM bandwidth (432.0GB/s vs 38.40GB/s)

3312 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 245W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 XT +8374%

35.17 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon RX 7700 XT

VS

GeForce GT 640 OEM Rebrand

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

800 MHz

Memory

12GB

Memory Size

1536MB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

192bit

432.0GB/s

Bandwidth

38.40GB/s

Render Config

-

SM Count

3

54

Compute Units

-

3456

Shading Units

144

216

TMUs

24

96

ROPs

24

-

Tensor Cores

-

54

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

384 KB

Theoretical Performance

244.2 GPixel/s

Pixel Rate

4.320 GPixel/s

549.5 GTexel/s

Texture Rate

17.28 GTexel/s

70.34 TFLOPS

FP16 (half)

-

35.17 TFLOPS

FP32 (float)

414.7 GFLOPS

1099 GFLOPS

FP64 (double)

34.56 GFLOPS

Graphics Processor

Navi 32

GPU Name

GF116

Navi 32 XL (215-180000076)

GPU Variant

GF116-150-A1

RDNA 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

28.1 billion

Transistors

1.17 billion

346 mm²

Die Size

238 mm²

Board Design

245W

TDP

75W

550 W

Suggested PSU

250 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

None

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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