Home GPU Comparison AMD Radeon HD 7870 XT vs NVIDIA GeForce 9400 GT Rev. 2

AMD Radeon HD 7870 XT vs NVIDIA GeForce 9400 GT Rev. 2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 512MB VRAM GeForce 9400 GT Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages
Released 4 years and 3 months late
Boost Clock975MHz
Larger VRAM bandwidth (192.0GB/s vs 12.80GB/s)
1520 additional rendering cores
NVIDIA GeForce 9400 GT Rev. 2 's Advantages
Lower TDP (50W vs 185W)

Score

Benchmark

FP32 (float)
Radeon HD 7870 XT +6555%
2.995 TFLOPS
GeForce 9400 GT Rev. 2
0.045 TFLOPS
VS

Graphics Card

Nov 2012
Release Date
Aug 2008
Southern Islands
Generation
GeForce 9
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

925 MHz
Base Clock
-
975 MHz
Boost Clock
-
1500 MHz
Memory Clock
400 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
192.0GB/s
Bandwidth
12.80GB/s

Render Config

-
SM Count
2
24
Compute Units
-
1536
Shading Units
16
96
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
32 KB

Theoretical Performance

31.20 GPixel/s
Pixel Rate
2.200 GPixel/s
93.60 GTexel/s
Texture Rate
4.400 GTexel/s
-
FP16 (half)
-
2.995 TFLOPS
FP32 (float)
44.80 GFLOPS
748.8 GFLOPS
FP64 (double)
-

Graphics Processor

Tahiti
GPU Name
G96C
Tahiti LE (215-0821122)
GPU Variant
-
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
4.313 billion
Transistors
0.314 billion
352 mm²
Die Size
121 mm²

Board Design

185W
TDP
50W
450 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x VGA 1x S-Video
2x 6-pin
Power Connectors
None

Graphics Features

12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
5.1
Shader Model
4.0

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