GPU Comparison

A

AMD

RADEON

AMD Radeon RX 6700 XT

CORE STATE Navi 22

VRAM 12 GB

CLOCK SPEED 2581 MHz

TDP 230 W

BUS WIDTH 192 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2021

VS

NVIDIA

GEFORCE

GeForce GTX 660 Rev. 2

CORE STATE GK104

VRAM 2 GB

CLOCK SPEED 1032 MHz

TDP 140 W

BUS WIDTH 192 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2014

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

2,435

N/A

geekbench_metal

129,041

N/A

geekbench_opencl

100,730

N/A

geekbench_vulkan

108,032

N/A

passmark_directx_10

124

N/A

passmark_directx_11

173

N/A

passmark_directx_12

77

N/A

passmark_directx_9

242

N/A

passmark_g2d

951

N/A

passmark_g3d

19,786

N/A

passmark_gpu_compute

9,336

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6700 XT

GTX 660 Rev. 2

Core Specs

Shading Units

2,560

960 -62.5%

Shaders

2,560

960 -62.5%

TMUs

160

80 -50.0%

ROPs

64

24 -62.5%

Compute Units

40

—

Clocks

Base Clock

2321 MHz

980 MHz

Boost Clock

2581 MHz

1032 MHz

Game Clock

2424 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1502 MHz 6 Gbps effective

Memory

Memory Size

12 GB

2 GB

VRAM (MB)

12,288

2,048 -83.3%

Memory Type

GDDR6

GDDR5

Memory Bus

192 bit

192 bit

Bandwidth

384.0 GB/s

144.2 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per SMX)

L2 Cache

3 MB

384 KB

L3 Cache

96 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

165.2 GPixel/s

20.64 GPixel/s

Texture Rate

413.0 GTexel/s

82.56 GTexel/s

FP32 (TFLOPS)

13.21 TFLOPS

1.981 TFLOPS

FP64 (TFLOPS)

825.9 GFLOPS (1:16)

82.56 GFLOPS (1:24)

FP16 (TFLOPS)

26.43 TFLOPS (2:1)

—

AI/RT

RT Cores

40

—

Power

TDP

230 W

140 W

TDP (W)

230

140 -39.1%

Suggested PSU

550 W

300 W

Power Connectors

1x 6-pin + 1x 8-pin

1x 6-pin

Architecture

Architecture

RDNA 2.0

Kepler

GPU Name

Navi 22

GK104

Generation

Navi II (RX 6000)

GeForce 600

Process Size

7 nm

28 nm

Transistors

17,200 million

3,540 million

Die Size

335 mm²

294 mm²

Foundry

TSMC

TSMC

Density

51.3M / mm²

12.0M / 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

—

3.0

Shader Model

6.8

6.5 (5.1)

Physical

Slot Width

Dual-slot

Dual-slot

Length

267 mm 10.5 inches

241 mm 9.5 inches

Height

110 mm 4.3 inches

—

Outputs

1x HDMI 2.13x DisplayPort 1.4a

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

Bus Interface

PCIe 4.0 x16

PCIe 3.0 x16

Other

Launch Price

479 USD

—

Production

End-of-life

End-of-life

Predecessor

Navi

GeForce 500

Successor

Navi III

GeForce 700

View Radeon RX 6700 XT Details View GeForce GTX 660 Rev. 2 Details