AMD Radeon RX 6700 vs NVIDIA GeForce GT 640

VS

AMD Radeon RX 6700

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 10GB VRAM Radeon RX 6700 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 6700 's Advantages

Released 9 years late

Boost Clock2450MHz

More VRAM (10GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 28.51GB/s)

1920 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 175W)

Score

Benchmark

FP32 (float)

Radeon RX 6700 +1529%

11.29 TFLOPS

GeForce GT 640

0.693 TFLOPS

Radeon RX 6700

VS

GeForce GT 640

Graphics Card

Jun 2021

Release Date

Jun 2012

Navi II

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1941 MHz

Base Clock

-

2450 MHz

Boost Clock

-

2000 MHz

Memory Clock

891 MHz

Memory

10GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

160bit

Memory Bus

128bit

320.0GB/s

Bandwidth

28.51GB/s

Render Config

36

Compute Units

-

2304

Shading Units

384

144

TMUs

32

64

ROPs

16

-

36

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

256 KB

80 MB

L3 Cache

-

Theoretical Performance

156.8 GPixel/s

Pixel Rate

7.216 GPixel/s

352.8 GTexel/s

Texture Rate

28.86 GTexel/s

22.58 TFLOPS

FP16 (half)

-

11.29 TFLOPS

FP32 (float)

692.7 GFLOPS

705.6 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

175W

TDP

65W

450 W

Suggested PSU

250 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

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

1x 8-pin

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

GK107

Navi 22 XTL

GPU Variant

GK107-300-A2

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

17.2 billion

Transistors

1.27 billion

335 mm²

Die Size

118 mm²

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

3.0

6.5

Shader Model

5.1

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