AMD Radeon HD 6950 vs AMD Radeon RX 6800 XT
GPU · Specs Compare
Graphics Card
Release Date
Dec 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
1250 MHz
2000 MHz
Base Clock
—
1825 MHz
Boost Clock
—
2250 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
512.0GB/s
Render Config
Compute Units
22
72
Shading Units
1408
4608
TMUs
88
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
25.60 GPixel/s
288.0 GPixel/s
Texture Rate
70.40 GTexel/s
648.0 GTexel/s
FP32 (float)
2.253 TFLOPS
20.74 TFLOPS
FP64 (double)
563.2 GFLOPS
1296 GFLOPS
FP16 (half)
—
41.47 TFLOPS
Graphics Processor
GPU Name
Cayman
Navi 21
GPU Variant
Cayman PRO(215-0807019)
Navi 21 XT(215-121000177)
Architecture
TeraScale 3
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
7 nm
Transistors
2.64 billion
26.8 billion
Die Size
389 mm²
520 mm²
Board Design
TDP
200W
300W
Suggested PSU
550 W
700 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
2x 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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.