AMD Radeon RX 6800 vs AMD Radeon HD 6850 1440SP Edition
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Aug 2012
Generation
Navi II
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1700 MHz
—
Boost Clock
2105 MHz
—
Memory Clock
2000 MHz
1000 MHz
Memory
Memory Size
16GB
1024MB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
128.0GB/s
Render Config
Compute Units
60
18
Shading Units
3840
1440
TMUs
240
72
ROPs
96
32
RT Cores
60
—
L1 Cache
128 KB per Array
8 KB (per CU)
L2 Cache
4 MB
512 KB
L3 Cache
128 MB
—
Theoretical Performance
Pixel Rate
202.1 GPixel/s
23.20 GPixel/s
Texture Rate
505.2 GTexel/s
52.20 GTexel/s
FP16 (half)
32.33 TFLOPS
—
FP32 (float)
16.17 TFLOPS
2.088 TFLOPS
FP64 (double)
1010 GFLOPS
417.6 GFLOPS
Graphics Processor
GPU Name
Navi 21
Cypress
GPU Variant
Navi 21 XL(215-121000187)
Cypress PRO(215-0735043)
Architecture
RDNA 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
7 nm
40 nm
Transistors
26.8 billion
2.154 billion
Die Size
520 mm²
334 mm²
Board Design
TDP
250W
151W
Suggested PSU
600 W
450 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
2x 8-pin
2x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1
1.2
Vulkan
1.3
N/A
Shader Model
6.5
5.0
Benchmark
3DMark Time Spy
16,182
—
3DMark Time Spy Extreme
7,771
—
3DMark Speed Way
3,062
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.