Radeon R9 270X Vs HD 7970 [in 3 Benchmarks] - Technical City

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	450	433
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.13	2.16
Power efficiency	4.97	3.85
Architecture	GCN 1.0 (2012−2020)	GCN 1.0 (2012−2020)
GPU code name	Curacao	Tahiti
Market segment	Desktop	Desktop
Design	reference	reference
Release date	8 October 2013 (12 years ago)	9 January 2012 (13 years ago)
Launch price (MSRP)	$199	$549

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

R9 270X has 138% better value for money than HD 7970.

Performance to price scatter graph

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	1280	2048
Boost clock speed	1050 MHz	925 MHz
Number of transistors	2,800 million	4,313 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	180 Watt	300 Watt
Texture fill rate	84.00	118.4
Floating-point processing power	2.688 TFLOPS	3.789 TFLOPS
ROPs	32	32
TMUs	80	128
L1 Cache	320 KB	512 KB
L2 Cache	512 KB	768 KB

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus support	PCIe 3.0	PCIe 2.1 x16
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Length	no data	275 mm
Width	2-slot	2-slot
Supplementary power connectors	2 x 6-pin	1x 6-pin + 1x 8-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR5
Maximum RAM amount	4 GB	6 GB
Memory bus width	256 Bit	384 Bit
Memory clock speed	no data	1375 MHz
Memory bandwidth	179.2 GB/s	264 GB/s
Shared memory	-	-

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2
Eyefinity	+	+
HDMI	+	+
DisplayPort support	+	-

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAcceleration	+	-
CrossFire	+	+
FreeSync	+	+
HD3D	+	-
LiquidVR	+	-
TressFX	+	-
TrueAudio	+	-
UVD	+	-
DDMA audio	+	no data

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	DirectX® 12	DirectX® 11
Shader Model	5.1	6.5 (5.1)
OpenGL	4.6	4.6
OpenCL	1.2	2.1 (1.2)
Vulkan	+	-