GPU Comparison

A

AMD

RADEON

AMD Radeon HD 7950

CORE STATE Tahiti

VRAM 3 GB

CLOCK SPEED —

TDP 200 W

BUS WIDTH 384 bit

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2012

VS

A

AMD

RADEON

Radeon RX 7800 XT

CORE STATE Navi 32

VRAM 16 GB

CLOCK SPEED 2430 MHz

TDP 263 W

BUS WIDTH 256 bit

ARCHITECTURE RDNA 3.0

nm

PROCESS 5 nm

LAUNCH DATE 2023

PERFORMANCE BENCHMARKS

geekbench_metal

34,050

N/A

3dmark_3dmark_steel_nomad_dx12

N/A

4,157

geekbench_opencl

N/A

139,381

geekbench_vulkan

N/A

143,060

passmark_directx_10

N/A

121

passmark_directx_11

N/A

249

passmark_directx_12

N/A

93

passmark_directx_9

N/A

304

passmark_g2d

N/A

1,177

passmark_g3d

N/A

24,176

passmark_gpu_compute

N/A

13,473

DETAILED SPECIFICATIONS

SPECIFICATION

HD 7950

RX 7800 XT

Core Specs

Shading Units

1,792

3,840 +114.3%

Shaders

1,792

3,840 +114.3%

TMUs

112

240 +114.3%

ROPs

32

96 +200.0%

Compute Units

28

60 +114.3%

Clocks

Base Clock

—

1295 MHz

Boost Clock

—

2430 MHz

GPU Clock

800 MHz

—

Game Clock

—

2124 MHz

Memory Clock

1250 MHz 5 Gbps effective

2438 MHz 19.5 Gbps effective

Memory

Memory Size

3 GB

16 GB

VRAM (MB)

3,072

16,384 +433.3%

Memory Type

GDDR5

GDDR6

Memory Bus

384 bit

256 bit

Bandwidth

240.0 GB/s

624.1 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB per Array

L2 Cache

768 KB

4 MB

L3 Cache

—

64 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

25.60 GPixel/s

233.3 GPixel/s

Texture Rate

89.60 GTexel/s

583.2 GTexel/s

FP32 (TFLOPS)

2.867 TFLOPS

37.32 TFLOPS

FP64 (TFLOPS)

716.8 GFLOPS (1:4)

1,166.4 GFLOPS (1:32)

FP16 (TFLOPS)

—

74.65 TFLOPS (2:1)

AI/RT

RT Cores

—

60

Matrix Cores

—

120

Power

TDP

200 W

263 W

TDP (W)

200

263 +31.5%

Suggested PSU

550 W

600 W

Power Connectors

2x 6-pin

2x 8-pin

Architecture

Architecture

GCN 1.0

RDNA 3.0

GPU Name

Tahiti

Navi 32

Codename

—

Wheat Nas

Generation

Southern Islands (HD 7900)

Navi III (RX 7000)

Process Size

28 nm

5 nm

Transistors

4,313 million

28,100 million

Die Size

352 mm²

346 mm²

Foundry

TSMC

TSMC

Density

12.3M / mm²

81.2M / mm²

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

Dual-slot

Dual-slot

Length

278 mm 10.9 inches

267 mm 10.5 inches

Height

111 mm 4.4 inches

111 mm 4.4 inches

Outputs

1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2

1x HDMI 2.1a3x DisplayPort 2.1

Bus Interface

PCIe 3.0 x16

PCIe 4.0 x16

Other

Launch Price

449 USD

499 USD

Production

End-of-life

Active

Predecessor

Northern Islands

Navi II

Successor

Sea Islands

Navi IV

View Radeon HD 7950 Details View Radeon RX 7800 XT Details