Radeon RX 6700 XT vs Radeon HD 6670
We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6700 XT and 1024MB VRAM Radeon HD 6670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6700 XT Advantages
Released 9 years and 11 months late
Boost Clock2581MHz
More VRAM (12GB vs 1024GB)
Larger VRAM bandwidth (384.0GB/s vs 64.00GB/s)
2080 additional rendering cores
Radeon HD 6670 Advantages
Lower TDP (66W vs 230W)
Score
Benchmark
FP32 (float)
Radeon RX 6700 XT
+1620%
13210
Radeon HD 6670
768
3DMark Time Spy
Radeon RX 6700 XT
+507%
12804
Radeon HD 6670
2109
Graphics Card
Mar 2021
Release Date
Apr 2011
Navi II
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
2321 MHz
Base Clock
-
2581 MHz
Boost Clock
-
2000 MHz
Memory Clock
1000 MHz
Memory
12GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
192bit
Memory Bus
128bit
384.0GB/s
Bandwidth
64.00GB/s
Render Config
40
Compute Units
6
2560
Shading Units
480
160
TMUs
24
64
ROPs
8
40
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
3 MB
L2 Cache
256 KB
96 MB
L3 Cache
-
Theoretical Performance
165.2 GPixel/s
Pixel Rate
6.400 GPixel/s
413.0 GTexel/s
Texture Rate
19.20 GTexel/s
26.43 TFLOPS
FP16 (half)
-
13.21 TFLOPS
FP32 (float)
768.0 GFLOPS
825.9 GFLOPS
FP64 (double)
-
Board Design
230W
TDP
66W
550 W
Suggested PSU
250 W
1x HDMI 2.1
3x DisplayPort 1.4a
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
1x HDMI 1.3a
1x VGA
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
Navi 22
GPU Name
Turks
Navi 22 XT
(215-127000006)
(215-127000006)
GPU Variant
Turks XT
(215-0803000)
(215-0803000)
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
17.2 billion
Transistors
0.716 billion
335 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.3
Vulkan
N/A
6.5
Shader Model
5.0
