GPU Comparison

A

AMD

RADEON

AMD Radeon HD 8790M

CORE STATE Mars

VRAM 2 GB

CLOCK SPEED 900 MHz

TDP —

BUS WIDTH 128 bit

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2013

VS

A

AMD

RADEON

Radeon RX 7900 XTX

CORE STATE Navi 31

VRAM 24 GB

CLOCK SPEED 2498 MHz

TDP 355 W

BUS WIDTH 384 bit

ARCHITECTURE RDNA 3.0

nm

PROCESS 5 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

5,073

189,573

geekbench_vulkan

5,839

192,597

3dmark_3dmark_steel_nomad_dx12

N/A

6,841

passmark_directx_10

N/A

166

passmark_directx_11

N/A

356

passmark_directx_12

N/A

131

passmark_directx_9

N/A

330

passmark_g2d

N/A

1,267

passmark_g3d

N/A

31,238

passmark_gpu_compute

N/A

17,689

DETAILED SPECIFICATIONS

SPECIFICATION

HD 8790M

RX 7900 XTX

Core Specs

Shading Units

384

6,144 +1500.0%

Shaders

384

6,144 +1500.0%

TMUs

24

384 +1500.0%

ROPs

8

192 +2300.0%

Compute Units

6

96 +1500.0%

Clocks

Base Clock

850 MHz

1929 MHz

Boost Clock

900 MHz

2498 MHz

Game Clock

—

2365 MHz

Shader Clock

—

2269 MHz

Memory Clock

1000 MHz 4 Gbps effective

2500 MHz 20 Gbps effective

Memory

Memory Size

2 GB

24 GB

VRAM (MB)

2,048

24,576 +1100.0%

Memory Type

GDDR5

GDDR6

Memory Bus

128 bit

384 bit

Bandwidth

64.00 GB/s

960.0 GB/s

Cache

L1 Cache

16 KB (per CU)

256 KB per Array

L2 Cache

256 KB

6 MB

L3 Cache

—

96 MB

L0 Cache

—

64 KB per WGP

Performance

Pixel Rate

7.200 GPixel/s

479.6 GPixel/s

Texture Rate

21.60 GTexel/s

959.2 GTexel/s

FP32 (TFLOPS)

691.2 GFLOPS

61.39 TFLOPS

FP64 (TFLOPS)

43.20 GFLOPS (1:16)

1.918 TFLOPS (1:32)

FP16 (TFLOPS)

—

122.8 TFLOPS (2:1)

AI/RT

RT Cores

—

96

Matrix Cores

—

192

Power

TDP

—

355 W

TDP (W)

—

355

Suggested PSU

—

750 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

GCN 1.0

RDNA 3.0

GPU Name

Mars

Navi 31

Codename

—

Plum Bonito

Generation

Solar System (HD 8700M)

Navi III (RX 7000)

Process Size

28 nm

5 nm

Transistors

950 million

57,700 million

Die Size

77 mm²

529 mm²

Foundry

TSMC

TSMC

Density

12.3M / mm²

109.1M / mm²

AMD MCM

GCD Transistors

—

45,400 million

GCD Die Size

—

304.35 mm²

MCD Transistors

—

2,050 million x6

API Support

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1 (1.2)

2.2

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

MXM Module

Dual-slot

Length

—

287 mm 11.3 inches

Height

—

110 mm 4.3 inches

Outputs

Portable Device Dependent

1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C

Bus Interface

MXM-A (3.0)

PCIe 4.0 x16

Other

Launch Price

—

999 USD

Production

End-of-life

End-of-life

Predecessor

London

Navi II

Successor

Gem System

Navi IV

View Radeon HD 8790M Details View Radeon RX 7900 XTX Details