AMD Radeon RX 6950 XT vs NVIDIA GeForce GT 640 Rev. 2

VS

AMD Radeon RX 6950 XT NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6950 XT and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6950 XT 's Advantages

Released 9 years late

Boost Clock2310MHz

More VRAM (16GB vs 1GB)

Larger VRAM bandwidth (576.0GB/s vs 40.06GB/s)

4736 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 335W)

Score

Benchmark

FP32 (float)

Radeon RX 6950 XT +2845%

23.65 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

Radeon RX 6950 XT

VS

GeForce GT 640 Rev. 2

Graphics Card

May 2022

Release Date

May 2013

Navi II

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

1860 MHz

Base Clock

-

2310 MHz

Boost Clock

-

2250 MHz

Memory Clock

1252 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

40.06GB/s

Render Config

-

SM Count

-

80

Compute Units

-

5120

Shading Units

384

320

TMUs

32

128

ROPs

8

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

512 KB

Theoretical Performance

295.7 GPixel/s

Pixel Rate

8.368 GPixel/s

739.2 GTexel/s

Texture Rate

33.47 GTexel/s

47.31 TFLOPS

FP16 (half)

-

23.65 TFLOPS

FP32 (float)

803.3 GFLOPS

1478 GFLOPS

FP64 (double)

33.47 GFLOPS

Graphics Processor

Navi 21

GPU Name

GK208

Navi 21 KXTX (215-121000289)

GPU Variant

GK208-400-A1

RDNA 2.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

1.02 billion

520 mm²

Die Size

87 mm²

Board Design

335W

TDP

49W

700 W

Suggested PSU

200 W

1x HDMI 2.1 2x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.5

6.5

Shader Model

5.1

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