AMD Radeon RX 6800 3456SP vs AMD Radeon HD 7850
GPU Specs Compare
Graphics Card
Release Date
Unknown
Mar 2012
Generation
Navi II
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
-
Boost Clock
2250 MHz
-
Memory Clock
2000 MHz
1200 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
153.6GB/s
Render Config
Compute Units
54
16
Shading Units
3456
1024
TMUs
216
64
ROPs
96
32
RT Cores
54
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
512 KB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
216.0 GPixel/s
27.52 GPixel/s
Texture Rate
486.0 GTexel/s
55.04 GTexel/s
FP16 (half)
31.10 TFLOPS
-
FP32 (float)
15.55 TFLOPS
1.761 TFLOPS
FP64 (double)
972.0 GFLOPS
110.1 GFLOPS
Graphics Processor
GPU Name
Navi 21
Pitcairn
GPU Variant
Navi 21 ES(215-121000066)
Pitcairn PRO(215-0828062)
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
2.8 billion
Die Size
520 mm²
212 mm²
Board Design
TDP
250W
130W
Suggested PSU
600 W
300 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.3
1.2
Shader Model
6.8
5.1
📊 Benchmark
3DMark Time Spy
-
1,334
3DMark Time Spy Extreme
-
325