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GPU Comparison
AMD Radeon RX 7800 vs AMD Radeon HD 6870
AMD Radeon RX 7800 vs AMD Radeon HD 6870
VS
AMD Radeon RX 7800
AMD Radeon HD 6870
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7800 's Advantages
Released 12 years and 3 months late
Boost Clock2800MHz
More VRAM (16GB vs 1GB)
Larger VRAM bandwidth (576.0GB/s vs 134.4GB/s)
2720 additional rendering cores
AMD Radeon HD 6870 's Advantages
Lower TDP (151W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7800
+1751%
37.32 TFLOPS
Radeon HD 6870
2.016 TFLOPS
Radeon RX 7800
VS
Radeon HD 6870
Graphics Card
Jan 2023
Release Date
Oct 2010
Navi III
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1800 MHz
Base Clock
-
2800 MHz
Boost Clock
-
2250 MHz
Memory Clock
1050 MHz
Memory
16GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
576.0GB/s
Bandwidth
134.4GB/s
Render Config
-
SM Count
-
60
Compute Units
14
3840
Shading Units
1120
240
TMUs
56
128
ROPs
32
-
Tensor Cores
-
60
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
512 KB
Theoretical Performance
358.4 GPixel/s
Pixel Rate
28.80 GPixel/s
672.0 GTexel/s
Texture Rate
50.40 GTexel/s
86.02 TFLOPS
FP16 (half)
-
43.01 TFLOPS
FP32 (float)
2.016 TFLOPS
1344 GFLOPS
FP64 (double)
-
Graphics Processor
Navi 32
GPU Name
Barts
Navi 32 XT
GPU Variant
Barts XT (215-0798000)
RDNA 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
Unknown
Transistors
1.7 billion
346 mm²
Die Size
255 mm²
Board Design
300W
TDP
151W
700 W
Suggested PSU
450 W
1x HDMI 2.1a 3x DisplayPort 2.1
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
2x 8-pin
Power Connectors
2x 6-pin
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.2
OpenCL
1.2
1.3
Vulkan
N/A
-
CUDA
-
6.7
Shader Model
5.0
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