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

A

AMD

RADEON

Radeon VII

CORE STATE Vega 20

VRAM 16 GB

CLOCK SPEED 1750 MHz

TDP 295 W

BUS WIDTH 4096 bit

ARCHITECTURE GCN 5.1

nm

PROCESS 7 nm

LAUNCH DATE 2019

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

1,804

2,304

geekbench_metal

108,608

77,265

geekbench_opencl

82,736

91,947

geekbench_vulkan

89,263

85,909

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

VII

Core Specs

Shading Units

2,048

3,840 +87.5%

Shaders

2,048

3,840 +87.5%

TMUs

128

240 +87.5%

ROPs

64

64 0.0%

Compute Units

32

60 +87.5%

Clocks

Base Clock

1968 MHz

1400 MHz

Boost Clock

2589 MHz

1750 MHz

Game Clock

2359 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1000 MHz 2 Gbps effective

Memory

Memory Size

8 GB

16 GB

VRAM (MB)

8,192

16,384 +100.0%

Memory Type

GDDR6

HBM2

Memory Bus

128 bit

4096 bit

Bandwidth

256.0 GB/s

1.02 TB/s

Cache

L1 Cache

128 KB per Array

16 KB (per CU)

L2 Cache

2 MB

4 MB

L3 Cache

32 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

165.7 GPixel/s

112.0 GPixel/s

Texture Rate

331.4 GTexel/s

420.0 GTexel/s

FP32 (TFLOPS)

10.60 TFLOPS

13.44 TFLOPS

FP64 (TFLOPS)

662.8 GFLOPS (1:16)

3.360 TFLOPS (1:4)

FP16 (TFLOPS)

21.21 TFLOPS (2:1)

26.88 TFLOPS (2:1)

AI/RT

RT Cores

32

—

Power

TDP

160 W

295 W

TDP (W)

160

295 +84.4%

Suggested PSU

450 W

600 W

Power Connectors

1x 8-pin

2x 8-pin

Architecture

Architecture

RDNA 2.0

GCN 5.1

GPU Name

Navi 23

Vega 20

Generation

Navi II (RX 6000)

Vega II (Radeon VII)

Process Size

7 nm

7 nm

Transistors

11,060 million

13,230 million

Die Size

237 mm²

331 mm²

Foundry

TSMC

TSMC

Density

46.7M / mm²

40.0M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.4

1.3

OpenCL

2.1

2.1

Shader Model

6.8

6.7

Physical

Slot Width

Dual-slot

Dual-slot

Length

190 mm 7.5 inches

280 mm 11 inches

Height

110 mm 4.3 inches

125 mm 4.9 inches

Outputs

1x HDMI 2.13x DisplayPort 1.4a

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x8

PCIe 3.0 x16

Other

Launch Price

379 USD

699 USD

Production

End-of-life

End-of-life

Predecessor

Navi

Vega

Successor

Navi III

Navi

View Radeon RX 6600 XT Details View Radeon VII Details