Home GPU Comparison AMD Radeon HD 6450 OEM vs AMD Radeon HD 7970 X2

AMD Radeon HD 6450 OEM vs AMD Radeon HD 7970 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 3GB VRAM Radeon HD 7970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages
Lower TDP (18W vs 500W)
AMD Radeon HD 7970 X2 's Advantages
Released 1 years and 6 months late
Larger VRAM bandwidth (264.0GB/s vs 8.528GB/s)
1888 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6450 OEM
0.2 TFLOPS
Radeon HD 7970 X2 +1794%
3.789 TFLOPS
VS

Graphics Card

Feb 2011
Release Date
Aug 2012
Northern Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
533 MHz
Memory Clock
1375 MHz

Memory

512MB
Memory Size
3GB
GDDR3
Memory Type
GDDR5
64bit
Memory Bus
384bit
8.528GB/s
Bandwidth
264.0GB/s

Render Config

-
SM Count
-
2
Compute Units
32
160
Shading Units
2048
8
TMUs
128
4
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
768 KB

Theoretical Performance

2.500 GPixel/s
Pixel Rate
29.60 GPixel/s
5.000 GTexel/s
Texture Rate
118.4 GTexel/s
-
FP16 (half)
-
200.0 GFLOPS
FP32 (float)
3.789 TFLOPS
-
FP64 (double)
947.2 GFLOPS

Graphics Processor

Caicos
GPU Name
New Zealand
Junbonator
GPU Variant
-
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.37 billion
Transistors
4.313 billion
67 mm²
Die Size
352 mm²

Board Design

18W
TDP
500W
200 W
Suggested PSU
900 W
1x DVI 1x HDMI 1.3a 1x VGA
Outputs
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
3x 8-pin

Graphics Features

11.2 (11_0)
DirectX
12 (11_1)
4.4
OpenGL
4.6
1.2
OpenCL
1.2
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
5.1

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