GPU Comparison

A

AMD

RADEON

AMD Radeon HD 6850 X2

CORE STATE Barts

VRAM 2 GB

CLOCK SPEED —

TDP 254 W

BUS WIDTH 256 bit

ARCHITECTURE TeraScale 2

nm

PROCESS 40 nm

LAUNCH DATE 2011

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_opencl

3,977

139,381

3dmark_3dmark_steel_nomad_dx12

N/A

4,157

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 6850 X2

RX 7800 XT

Core Specs

Shading Units

960

3,840 +300.0%

Shaders

960

3,840 +300.0%

TMUs

48

240 +400.0%

ROPs

32

96 +200.0%

Compute Units

12

60 +400.0%

Clocks

Base Clock

—

1295 MHz

Boost Clock

—

2430 MHz

GPU Clock

800 MHz

—

Game Clock

—

2124 MHz

Memory Clock

1050 MHz 4.2 Gbps effective

2438 MHz 19.5 Gbps effective

Memory

Memory Size

2 GB

16 GB

VRAM (MB)

2,048

16,384 +700.0%

Memory Type

GDDR5

GDDR6

Memory Bus

256 bit

256 bit

Bandwidth

134.4 GB/s

624.1 GB/s

Cache

L1 Cache

8 KB (per CU)

128 KB per Array

L2 Cache

512 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

38.40 GTexel/s

583.2 GTexel/s

FP32 (TFLOPS)

1.536 TFLOPS

37.32 TFLOPS

FP64 (TFLOPS)

—

1,166.4 GFLOPS (1:32)

FP16 (TFLOPS)

—

74.65 TFLOPS (2:1)

AI/RT

RT Cores

—

60

Matrix Cores

—

120

Power

TDP

254 W

263 W

TDP (W)

254

263 +3.5%

Suggested PSU

600 W

600 W

Power Connectors

2x 8-pin

2x 8-pin

Architecture

Architecture

TeraScale 2

RDNA 3.0

GPU Name

Barts

Navi 32

Codename

—

Wheat Nas

Generation

Northern Islands (HD 6800)

Navi III (RX 7000)

Process Size

40 nm

5 nm

Transistors

1,700 million

28,100 million

Die Size

255 mm²

346 mm²

Foundry

TSMC

TSMC

Density

6.7M / mm²

81.2M / mm²

API Support

DirectX

11.2 (11_0)

12 Ultimate (12_2)

OpenGL

4.4

4.6

Vulkan

—

1.4

OpenCL

1.2

2.2

Shader Model

5.0

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

—

267 mm 10.5 inches

Height

—

111 mm 4.4 inches

Outputs

2x DVI1x HDMI 1.3a1x DisplayPort 1.1

1x HDMI 2.1a3x DisplayPort 2.1

Bus Interface

PCIe 2.0 x16

PCIe 4.0 x16

Other

Launch Price

—

499 USD

Production

End-of-life

Active

Predecessor

Evergreen

Navi II

Successor

Southern Islands

Navi IV

View Radeon HD 6850 X2 Details View Radeon RX 7800 XT Details