AMD Radeon HD 6850 vs AMD Radeon RX 6800 XT
GPU Specs Compare
Graphics Card
Release Date
Oct 2010
Oct 2020
Generation
Northern Islands
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1000 MHz
2000 MHz
Base Clock
-
1825 MHz
Boost Clock
-
2250 MHz
Memory
Memory Size
1024MB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
128.0GB/s
512.0GB/s
Render Config
Compute Units
12
72
Shading Units
960
4608
TMUs
48
288
ROPs
32
128
L1 Cache
8 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
-
72
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
24.80 GPixel/s
288.0 GPixel/s
Texture Rate
37.20 GTexel/s
648.0 GTexel/s
FP32 (float)
1488 GFLOPS
20.74 TFLOPS
FP16 (half)
-
41.47 TFLOPS
FP64 (double)
-
1296 GFLOPS
Graphics Processor
GPU Name
Barts
Navi 21
GPU Variant
Barts PRO(215-0798006)
Navi 21 XT(215-121000177)
Architecture
TeraScale 2
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
7 nm
Transistors
1.7 billion
26.8 billion
Die Size
255 mm²
520 mm²
Board Design
TDP
127W
300W
Suggested PSU
300 W
700 W
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
1x 6-pin
2x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.3
Shader Model
5.0
6.5
📊 Benchmark
3DMark Time Spy
-
19,329