GPU Comparison

A

AMD

RADEON

AMD Radeon RX 6600 XT

CORE STATE Navi 23

VRAM 8 GB

CLOCK SPEED 2589 MHz

TDP 160 W

BUS WIDTH 128 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2021

VS

NVIDIA

GEFORCE

GeForce GT 640 Rev. 2

CORE STATE GK208

VRAM 1024 MB

CLOCK SPEED —

TDP 49 W

BUS WIDTH 64 bit

ARCHITECTURE Kepler 2.0

nm

PROCESS 28 nm

LAUNCH DATE 2013

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

1,804

N/A

geekbench_metal

108,608

N/A

geekbench_opencl

82,736

N/A

geekbench_vulkan

89,263

N/A

passmark_directx_10

109

N/A

passmark_directx_11

163

N/A

passmark_directx_12

61

N/A

passmark_directx_9

194

N/A

passmark_g2d

912

N/A

passmark_g3d

16,461

N/A

passmark_gpu_compute

7,520

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6600 XT

GT 640 Rev. 2

Core Specs

Shading Units

2,048

384 -81.3%

Shaders

2,048

384 -81.3%

TMUs

128

32 -75.0%

ROPs

64

8 -87.5%

Compute Units

32

—

Clocks

Base Clock

1968 MHz

—

Boost Clock

2589 MHz

—

GPU Clock

—

1046 MHz

Game Clock

2359 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1252 MHz 5 Gbps effective

Memory

Memory Size

8 GB

1024 MB

VRAM (MB)

8,192

1,024 -87.5%

Memory Type

GDDR6

GDDR5

Memory Bus

128 bit

64 bit

Bandwidth

256.0 GB/s

40.06 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per SMX)

L2 Cache

2 MB

512 KB

L3 Cache

32 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

165.7 GPixel/s

8.368 GPixel/s

Texture Rate

331.4 GTexel/s

33.47 GTexel/s

FP32 (TFLOPS)

10.60 TFLOPS

803.3 GFLOPS

FP64 (TFLOPS)

662.8 GFLOPS (1:16)

33.47 GFLOPS (1:24)

FP16 (TFLOPS)

21.21 TFLOPS (2:1)

—

AI/RT

RT Cores

32

—

Power

TDP

160 W

49 W

TDP (W)

160

49 -69.4%

Suggested PSU

450 W

200 W

Power Connectors

1x 8-pin

None

Architecture

Architecture

RDNA 2.0

Kepler 2.0

GPU Name

Navi 23

GK208

Generation

Navi II (RX 6000)

GeForce 600

Process Size

7 nm

28 nm

Transistors

11,060 million

1,020 million

Die Size

237 mm²

87 mm²

Foundry

TSMC

TSMC

Density

46.7M / mm²

11.7M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (11_0)

OpenGL

4.6

4.6

Vulkan

1.4

1.2.175

OpenCL

2.1

3.0

CUDA

—

3.5

Shader Model

6.8

6.5 (5.1)

Physical

Slot Width

Dual-slot

Single-slot

Length

190 mm 7.5 inches

145 mm 5.7 inches

Height

110 mm 4.3 inches

—

Outputs

1x HDMI 2.13x DisplayPort 1.4a

1x DVI1x HDMI 1.4a1x VGA

Bus Interface

PCIe 4.0 x8

PCIe 2.0 x8

Other

Launch Price

379 USD

89 USD

Production

End-of-life

End-of-life

Predecessor

Navi

GeForce 500

Successor

Navi III

GeForce 700

View Radeon RX 6600 XT Details View GeForce GT 640 Rev. 2 Details