AMD Radeon RX 7950 XT vs NVIDIA GeForce GT 640 OEM

VS

AMD Radeon RX 7950 XT

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7950 XT and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7950 XT 's Advantages

Boost Clock3000MHz

More VRAM (20GB vs 2GB)

Larger VRAM bandwidth (800.0GB/s vs 28.51GB/s)

4992 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7950 XT +10440%

64.51 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

Radeon RX 7950 XT

VS

GeForce GT 640 OEM

Graphics Card

Unknown

Release Date

Apr 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2000 MHz

Base Clock

-

3000 MHz

Boost Clock

-

2500 MHz

Memory Clock

891 MHz

Memory

20GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

320bit

Memory Bus

128bit

800.0GB/s

Bandwidth

28.51GB/s

Render Config

84

Compute Units

-

5376

Shading Units

384

336

TMUs

32

192

ROPs

16

-

84

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

256 KB

80 MB

L3 Cache

-

Theoretical Performance

576.0 GPixel/s

Pixel Rate

6.376 GPixel/s

1008 GTexel/s

Texture Rate

25.50 GTexel/s

129.0 TFLOPS

FP16 (half)

-

64.51 TFLOPS

FP32 (float)

612.1 GFLOPS

2.016 TFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

300W

TDP

50W

700 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 31

GPU Name

GK107

Navi 31 XT+

GPU Variant

GK107-320-A2

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

57.7 billion

Transistors

1.27 billion

529 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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