Radeon HD 4870 vs RTX A400
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 4870 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 96.00GB/s)
32 additional rendering cores
RTX A400 's Advantages
Released 15 years and 10 months late
Boost Clock1762MHz
More VRAM (4GB vs 512GB)
Lower TDP (50W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 4870
1200
RTX A400
+125%
2706
Graphics Card
Jun 2008
Release Date
Apr 2024
Radeon R700
Generation
Quadro Ampere(Ax000)
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
-
Base Clock
1417 MHz
-
Boost Clock
1762 MHz
900 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
4GB
GDDR5
Memory Type
GDDR6
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
96.00GB/s
Render Config
10
Compute Units
-
-
SM Count
6
800
Shading Units
768
40
TMUs
24
16
ROPs
16
-
Tensor Cores
24
-
RT Cores
6
16 KB (per CU)
L1 Cache
128 KB (per SM)
256 KB
L2 Cache
2 MB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
28.19 GPixel/s
30.00 GTexel/s
Texture Rate
42.29 GTexel/s
-
FP16 (half)
2.706 TFLOPS
1200 GFLOPS
FP32 (float)
2.706 TFLOPS
240.0 GFLOPS
FP64 (double)
42.29 GFLOPS
Board Design
150W
TDP
50W
450 W
Suggested PSU
250 W
2x DVI
1x S-Video
Outputs
4x mini-DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Processor
RV770
GPU Name
GA107
RV770 XT
(215-0669049)
GPU Variant
-
TeraScale
Architecture
Ampere
TSMC
Foundry
Samsung
55 nm
Process Size
8 nm
0.956 billion
Transistors
8.7 billion
256 mm²
Die Size
200 mm²
Graphics Features
10.1 (10_1)
DirectX
12 Ultimate (12_2)
3.3
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.3
-
CUDA
8.6
4.1
Shader Model
6.8
