Home GPU Comparison AMD Radeon HD 7720 OEM vs AMD Radeon HD 7970

AMD Radeon HD 7720 OEM vs AMD Radeon HD 7970

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 OEM and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7720 OEM 's Advantages
Released 1 years and 3 months late
Lower TDP (150W vs 250W)
AMD Radeon HD 7970 's Advantages
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (264.0GB/s vs 134.4GB/s)
1248 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 7720 OEM
1.344 TFLOPS
Radeon HD 7970 +181%
3.789 TFLOPS
VS

Graphics Card

Mar 2013
Release Date
Dec 2011
Southern Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1050 MHz
Memory Clock
1375 MHz

Memory

1024MB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
134.4GB/s
Bandwidth
264.0GB/s

Render Config

10
Compute Units
32
-
-
-
800
Shading Units
2048
40
TMUs
128
32
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

26.88 GPixel/s
Pixel Rate
29.60 GPixel/s
33.60 GTexel/s
Texture Rate
118.4 GTexel/s
-
-
-
1344 GFLOPS
FP32 (float)
3.789 TFLOPS
-
FP64 (double)
947.2 GFLOPS

Board Design

150W
TDP
250W
450 W
Suggested PSU
600 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
-
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Processor

Barts
GPU Name
Tahiti
Barts LE (215-0798002)
GPU Variant
Tahiti XT (215-0821060)
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.7 billion
Transistors
4.313 billion
255 mm²
Die Size
352 mm²

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
-
-
-
5.0
Shader Model
5.1

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